tests Layer 2 connectivity
provides a layer of security
operates a OSI layers 2 and 3
enabled by default on each interface
used for debugging Layer 4 connectivity issues
provides information on directly connected devices that have CDP enabled
Observable Description Max Value
1 correctness of response Option 1, Option 4, and Option 6 are correct.
1 point for each correct option.
0 points if more options are selected than required. 3
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
2.3.3 Cisco Discovery Protocol (CDP)
2 What are two functions of a router? (Choose two.)
It connects multiple IP networks.
It controls the flow of data via the use of Layer 2 addresses.
It determines the best path to send packets.
It manages the VLAN database.
It increases the size of the broadcast domain.
Observable Description Max Value
1 correctness of response Option 1 and Option 3 are correct.
1 point for each correct option.
0 points if more options are selected than required. 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
2.1.1 Role of the Router
3 Which router component is used to store the routing table?
Flash
NVRAM
ROM
SDRAM
Observable Description Max Value
1 correctness of response 2 points for Option 4
0 points for any other option 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
1.1.2 Router CPU and Memory
4 Which three statements are true regarding the encapsulation and de-encapsulation of packets when traveling through a router? (Choose three.)
The router modifies the TTL field, decrementing it by one.
The router changes the source IP to the IP of the exit interface.
The router maintains the same source and destination IP.
The router changes the source physical address to the physical address of the exit interface.
The router changes the destination IP to the IP of the exit interface.
The router sends the packet out all other interfaces, besides the one it entered the router on.
Observable Description Max Value
1 correctness of response Option 1, Option 3, and Option 4 are correct.
1 point for each correct option.
0 points if more options are selected than required. 3
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
1.4.5 Switching Function
5
Refer to the exhibit. Which two routes are child routes? (Choose two.)
10.0.0.0
10.1.2.0
10.2.2.0
192.168.1.0
192.168.2.0
Observable Description Max Value
1 correctness of response Option 2 and Option 3 are correct.
1 point for each correct option.
0 points if more options are selected than required. 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
8.2.1 Steps in the Route Lookup Process
6
Refer to the exhibit. Routers R1 and R3 use different routing protocols with default administrative distance values. All devices are properly configured and the destination network is advertised by both protocols.
Which path will be used to transmit the data packets between PC1 and PC2?
The packets will travel via R2-R1.
The packets will travel via R2-R3.
The traffic will be load-balanced between two paths — via R2-R1 and via R2-R3.
The packets will travel via R2-R3, and the other path via R2-R1 will be retained as the backup path.
Observable Description Max Value
1 correctness of response 2 points for Option 1
0 points for any other option 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
3.3.3 Load Balancing
7
Refer to the exhibit. All routes are advertised and fully operational on all routers. Which statement is true about the path that the data will take from router A to router B?
If EIGRP is used with default configurations, the data will be equally distributed between two paths — A, D, B and A, C, B.
If RIPv1 is used with default configurations, the data will be load-balanced on all paths.
If EIGRP and OSPF are both used with default configurations, the data will be sent through paths learned by the OSPF protocol.
If RIPv2 is used with default configurations, the data will be equally distributed between two paths — A, D, B and A, C, D.
Observable Description Max Value
1 correctness of response 2 points for Option 1
0 points for any other option 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
1.4.2 Best Path and Metric
8
Refer to the exhibit. The network administrator issues the command no ip classless on Router1. What forwarding action will take place on a packet that is received by Router1 and is destined for host 192.168.0.26?
The packet will be dropped.
The packet will be forwarded to the gateway of last resort.
The packet will match the 192.168.0.0 network and be forwarded out Serial 0/0.
The packet will most closely match the 192.168.0.8 subnet and be forwarded out Serial 0/1.
Observable Description Max Value
1 correctness of response 2 points for Option 1
0 points for any other option 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
8.3.3 Classful Routing Behavior - Search Process
9 Which two statements are true regarding link-state routing protocols? (Choose two.)
They are aware of the complete network topology.
They offer rapid convergence times in large networks.
They do not include subnet masks in their routing updates.
They rely on decreasing hop counts to determine the best path.
They do not work well in networks that require special hierarchical designs.
They pass their entire routing tables to their directly connected neighbors only.
Observable Description Max Value
1 correctness of response Option 1 and Option 2 are correct.
1 point for each correct option.
0 points if more options are selected than required. 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
3.2.3 Distance Vector and Link State
10
Refer to the routing table shown in the exhibit. What is the meaning of the highlighted value 192?
It is the value assigned by the Dijkstra algorithm that designates the number of hops in the network.
It is the value used by the DUAL algorithm to determine the bandwidth for the link.
It is the metric, which is cost.
It is the administrative distance.
Observable Description Max Value
1 correctness of response 2 points for Option 3
0 points for any other option 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
3.5.1 Identifying Elements of the Routing Table
11
Refer to the exhibit. R1 knows two routes, Path A and Path B, to the Ethernet network attached to R3. R1 learned Path A to network 10.2.0.0/16 from a static route and Path B to network 10.2.0.0/16 from EIGRP. Which route will R1 install in its routing table?
Both routes are installed and load balancing occurs across both paths.
The route via Path B is installed because the EIGRP route has the best metric to network 10.2.0.0/16.
The route via Path A is installed because the static route has the best metric to network 10.2.0.0/16.
The route via Path B is installed because the EIGRP route has the lowest administrative distance to network 10.2.0.0/16.
The route via Path A is installed because the static route has the lowest administrative distance to network 10.2.0.0/16.
Observable Description Max Value
1 correctness of response 2 points for Option 5
0 points for any other option 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
3.4.2 Dynamic Routing Protocols
12
Refer to the exhibit. RIPv1 has been used as a routing protocol on the network. A new 172.16.2.0/24 network has been added on router R2 and configured under the RIP routing process. When will R1 converge?
after 13 seconds
after 30 seconds
after 180 seconds
after R1 receives triggered updates from R2
Observable Description Max Value
1 correctness of response 2 points for Option 4
0 points for any other option 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
4.3.3 Triggered Updates
13 Which routing protocol maintains a topology table separate from the routing table?
IGRP
RIPv1
RIPv2
EIGRP
Observable Description Max Value
1 correctness of response 2 points for Option 4
0 points for any other option 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
9.1.1 EIGRP: An Enhanced Distance Vector Routing Protocol
14 A network administrator needs to configure a single router to load-balance the traffic over unequal cost paths. Which routing protocol should the administrator use?
EIGRP
OSPF
RIPv1
RIPv2
Observable Description Max Value
1 correctness of response 2 points for Option 1
0 points for any other option 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
3.3.3 Load Balancing
15
Refer to the exhibit. Which three statements are true of the routing table for Router1? (Choose three.)
The route to network 172.16.0.0 has an AD of 156160.
Network 192.168.0.16 can best be reached using FastEthernet0/0.
The AD of EIGRP routes has been manually changed to a value other than the default value.
Router1 is running both the EIGRP and OSPF routing process.
Network 172.17.0.0 can only be reached using a default route.
No default route has been configured.
Observable Description Max Value
1 correctness of response Option 3, Option 4, and Option 6 are correct.
1 point for each correct option.
0 points if more options are selected than required. 3
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
8.1.2 Routing Table Entries
16 A network technician must reduce the amount of broadcast traffic on the network while maintaining full connectivity between all different network segments. Which device should the administrator deploy?
hub
router
Layer 2 switch
multiport repeater
Observable Description Max Value
1 correctness of response 2 points for Option 2
0 points for any other option 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
1.1.5 Router Interfaces
17 Which prompt is used to allow a user to change the IP address of an interface on a router?
Router>
Router#
Router(config)#
Router(config-if)#
Observable Description Max Value
1 correctness of response 2 points for Option 4
0 points for any other option 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
1.2.2 Basic Router Configuration
18
Refer to the exhibit. Based on the partial output in the exhibit, why can users establish a console connection to this router without entering a password?
The login command was not entered on the console line.
The enable password should be an enable secret password.
No username and password combination has been configured.
Console connections cannot be configured to require users to provide passwords.
Observable Description Max Value
1 correctness of response 2 points for Option 1
0 points for any other option 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
1.2.2 Basic Router Configuration
19
Refer to the exhibit. An administrator is attempting to configure a router by copying and pasting the commands that are shown in the exhibit. However, only one of the FastEthernet interfaces is coming up. What is the problem?
Both interfaces are in the same IP subnet.
FastEthernet0/1 does not have a description.
There can be only one FastEthernet interface enabled on a router at one time.
The administrator did not exit to global configuration mode before configuring FastEthernet0/1.
Observable Description Max Value
1 correctness of response 2 points for Option 1
0 points for any other option 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
1.2.2 Basic Router Configuration
20
Refer to the exhibit. All router interfaces are configured with an IP address and are operational. If no routing protocols or static routes are configured, what information will be included in the show ip route command output for router A?
All of the 192.168.x.0 networks will be in the routing table.
Routes to networks 192.168.1.0/24, 192.168.2.0/24, and 192.168.3.0/24 will be in the routing table.
The routing table will be empty because routes and dynamic routes have not been configured.
A default route is automatically installed in the routing table to allow connectivity between the networks.
Observable Description Max Value
1 correctness of response 2 points for Option 2
0 points for any other option 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
1.2.2 Basic Router Configuration
21
Refer to the exhibit. The network has three connected routers: R1, R2 and R3. The routes of all three routers are displayed. What can be verified from the output?
R1 and R3 are connected to each other via the S0/0/0 interface.
The IP address of the S0/0/0 interface of R1 is 10.1.1.2.
The IP address of the S0/0/1 interface of R2 is 10.3.3.2.
R2 is connected to the S0/0/1 interface of R3.
Observable Description Max Value
1 correctness of response 2 points for Option 4
0 points for any other option 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
2.5.1 Configuring a Static Route with an Exit Interface
22
Refer to the exhibit. The show cdp neighbors command was run at R1. Which two facts about the newly detected device can be determined from the output? (Choose two.)
ABCD is a router that is connected to R1.
ABCD is a non-CISCO device that is connected to R1.
The device is connected at the Serial0/0/1 interface of R1.
R1 is connected at the S0/0/1 interface of device ABCD.
ABCD does not support switching capability.
Observable Description Max Value
1 correctness of response Option 1 and Option 3 are correct.
1 point for each correct option.
0 points if more options are selected than required. 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
2.3.3 Cisco Discovery Protocol (CDP)
23
Refer to the exhibit. Which router is advertising subnet 172.16.1.32/28?
Router1
Router2
Router3
Router4
Observable Description Max Value
1 correctness of response 2 points for Option 4
0 points for any other option 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
5.3.1 Verifying RIP: show ip route
24
Refer to the exhibit. The command ip route 0.0.0.0 0.0.0.0 S0/0/0 is run on router R2. What are the two results of this command? (Choose two.)
A static route will be updated in the routing table.
The traffic from the Internet will be directed to R2.
The traffic from the source network 172.16.0.0/22 will be blocked.
The route will be specified as the default route for all networks not defined in the routing table.
All the broadcasts will be forwarded via the S0/0/0 interface of R2.
Observable Description Max Value
1 correctness of response Option 1 and Option 4 are correct.
1 point for each correct option.
0 points if more options are selected than required. 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
2.7.3 Solving the Missing Route
25
Refer to the exhibit. A static route was configured on router R1 to forward packets to the remote networks. During a network upgrade, the network administrator configured RIPv2 on all routers in the network. What will router R1 do with a packet that is sourced from PC1 and destined for PC3?
The packet will be forwarded out the Serial0/0/0 interface via the static route.
The packet will be forwarded out the FastEthernet0/1 interface via the static route.
The packet will be forwarded out the Serial0/0/0 interface via the route that is learned through RIP.
The packet will be forwarded out the FastEthernet0/1 interface via the route that is learned through RIP.
Observable Description Max Value
1 correctness of response 2 points for Option 1
0 points for any other option 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
2.4.4 Resolving to an Exit Interface
26
Refer to the exhibit. All routers are running the same routing protocol. Based on the exhibit and its displayed commands, which statement is true?
The wildcard mask is incorrectly configured.
A default route must be configured on every router.
Routers B, C, and D have no access to the Internet.
The link to the ISP is not advertised by the routing protocol process.
Observable Description Max Value
1 correctness of response 2 points for Option 4
0 points for any other option 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
11.5.1 Redistributing an OSPF Default Route
27
Refer to the exhibit. A company uses static routing for its internal network. The network administrator at the HR branch decides to modify the static routes by adding two commands ip route 172.16.1.0 255.255.255.0 serial 0/0/0 and ip route 172.16.3.0 255.255.255.0 serial 0/0/0 on the HR router. What is the effect in the running configuration after adding these two commands?
A total of four static routes will appear.
The original two static routes will be replaced by two new static routes.
Only the two original static routes will appear. The two new static routes will be discarded.
The two new static routes will not appear in the configuration, but are kept in the database as backup.
Observable Description Max Value
1 correctness of response 2 points for Option 1
0 points for any other option 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
2.5.2 Modifying Static Routes
28
Refer to the exhibit. A network administrator has configured R1 as shown, and all interfaces are functioning correctly. A ping from R1 to 172.16.1.1 fails. What could be the cause of this problem?
The serial interface on R1 is configured incorrectly.
The default route is configured incorrectly.
The default-information originate command must be issued on R1.
Autosummarization must be disabled on R1.
Observable Description Max Value
1 correctness of response 2 points for Option 2
0 points for any other option 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
2.6.2 Default Static Route
29
Refer to the exhibit. The network has three connected routers: R1, R2, and R3. The routes of all three routers are displayed. All routers are operational and pings are not blocked on this network.
Which ping will fail?
from R1 to 172.16.1.1
from R1 to 192.168.3.1
from R2 to 192.168.1.1
from R2 to 192.168.3.1
Observable Description Max Value
1 correctness of response 2 points for Option 2
0 points for any other option 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
2.5.1 Configuring a Static Route with an Exit Interface
30 Which range of IP addresses will be used by RIPv2, EIGRP, and OSPF routing protocols to send routing advertisements?
Observable Description Max Value
1 correctness of response 2 points for Option 4
0 points for any other option 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
6.1.1 Classful IP Addressing
31 A network administrator must use the subnet 172.16.128.0/18 to create 6 additional subnets each containing up to 2000 hosts for local LANs. Which subnet mask should the administrator use to create the new subnets?
255.255.224.0
255.255.240.0
255.255.248.0
255.255.252.0
Observable Description Max Value
1 correctness of response 2 points for Option 3
0 points for any other option 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
6.2.2 VLSM and IP Addresses
32
Refer to the exhibit. What summary address can Router2 advertise to Router1 to reach the three networks on Routers 3, 4, and 5 without advertising any public address space or overlapping the networks on Router1?
172.16.0.0/8
172.16.0.0/10
172.16.0.0/13
172.16.0.0/20
172.16.0.0/24
Observable Description Max Value
1 correctness of response 2 points for Option 3
0 points for any other option 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
6.3.1 Route Summarization
33
The network shown in the diagram is having problems routing traffic. It is suspected that the problem is with the addressing scheme. What is the problem with the addressing used in the topology?
The address assigned to the Ethernet0 interface of Router1 is a broadcast address for that subnetwork.
The subnetwork configured on the serial link between Router1 and Router2 overlaps with the subnetwork assigned to Ethernet0 of Router3.
The subnetwork assigned to the Serial0 interface of Router1 is on a different subnetwork from the address for Serial0 of Router2.
The subnetwork assigned to Ethernet0 of Router2 overlaps with the subnetwork assigned to Ethernet0 of Router3.
Observable Description Max Value
1 correctness of response 2 points for Option 2
0 points for any other option 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
6.4.3 Troubleshooting a VLSM Addressing Design Activity
34
Refer to the exhibit. The network administrator is planning IP addressing of a new network. What part of this addressing scheme must be changed to allow communication between host A and the server?
the IP address of the server
the default gateway of host A
the IP address of host A
the default gateway of the server
Observable Description Max Value
1 correctness of response 2 points for Option 1
0 points for any other option 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
1.2.1 Implementing Basic Addressing Schemes
35
Refer to the exhibit. The network is running the RIP routing protocol. Network 10.0.0.0 goes down. Which statement is true regarding how the routers in this topology will respond to this event?
Router5 flushes the unreachable route from its routing table in 30 seconds.
Router4 will learn about the failed route 30 seconds later in the next periodic update.
Router5 will send Router4 a triggered update with a metric of 16 for network 10.0.0.0.
Split horizon will prevent Router4 from fowarding packets to the 10.0.0.0 network until the holddown timer expires.
Observable Description Max Value
1 correctness of response 2 points for Option 3
0 points for any other option 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
4.4.6 Split Horizon with Poison Reverse or Route Poisoning
36 How does route poisoning prevent routing loops?
New routing updates are ignored until the network has converged.
Failed routes are advertised with a metric of infinity.
A route is marked as unavailable when its Time to Live is exceeded.
The unreachable route is cleared from the routing table after the invalid timer expires.
Observable Description Max Value
1 correctness of response 2 points for Option 2
0 points for any other option 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
4.4.6 Split Horizon with Poison Reverse or Route Poisoning
37
A network administrator has enabled RIP on routers B and C in the network diagram. Which of the following commands will prevent RIP updates from being sent to Router A?
A(config)# router rip
A(config-router)# passive-interface S0/0
B(config)# router rip
B(config-router)# network 192.168.25.48
B(config-router)# network 192.168.25.64
A(config)# router rip
A(config-router)# no network 192.168.25.32
B(config)# router rip
B(config-router)# passive-interface S0/0
A(config)# no router rip
Observable Description Max Value
1 correctness of response 2 points for Option 4
0 points for any other option 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
5.3.4 Passive Interfaces
38
Refer to the exhibit. What information can be determined from the highlighted output?
R1 is originating the route 172.30.200.32/28.
Automatic summarization is disabled.
The 172.30.200.16/28 network is one hop away from R1.
A classful routing protocol is being used.
Observable Description Max Value
1 correctness of response 2 points for Option 2
0 points for any other option 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
7.2.4 Verifying RIPv2 Updates
39
Refer to the exhibit. All routers are configured with RIPv2 active on all interfaces. Automatic summarization is in effect. Why does the routing table on R3 include the 209.165.200.228/30 network but not the 172.30.1.0/24 and 172.30.2.0/24 networks?
CIDR is required to route supernets.
There is no default gateway configured.
The 172.30.0.0/16 subnets are discontiguous.
RIPv2 cannot route networks with variable subnets.
Observable Description Max Value
1 correctness of response 2 points for Option 3
0 points for any other option 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
7.2.2 Auto-summary and RIPv2
7.4.2 Common RIPv2 issues
40 Which statement correctly describes a feasible successor in EIGRP?
It is a primary route that is stored in the routing table.
It is a backup route that is stored in the routing table.
It is a primary route that is stored in the topology table.
It is a backup route that is stored in the topology table.
Observable Description Max Value
1 correctness of response 2 points for Option 4
0 points for any other option 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
9.4.4 Topology Table: Successor and Feasible Successor
41 Which multicast address does EIGRP use to send hello and updates packets?
224.0.0.5
224.0.0.6
224.0.0.9
224.0.0.10
Observable Description Max Value
1 correctness of response 2 points for Option 4
0 points for any other option 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
9.1.4 RTP and EIGRP Packet Types
42
Refer to the exhibit. Which network command will prevent EIGRP on router RA from advertising the Ethernet networks but will allow the advertisement of all networks on the WAN links?
RA(config-router)# network 172.16.1.0 0.0.0.0
RA(config-router)# network 172.16.1.0 0.0.0.15
RA(config-router)# network 172.16.1.0 0.0.0.63
RA(config-router)# network 172.16.1.128 255.255.255.128
RA(config-router)# network 172.16.1.0 255.255.255.240
Observable Description Max Value
1 correctness of response 2 points for Option 3
0 points for any other option 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
9.2.4 The network Command
43
Refer to the exhibit. Routers R1 and R2 are directly connected via their serial interfaces and are both running the EIGRP routing protocol. R1 and R2 can ping the directly connected serial interface of their neighbor, but they cannot form an EIGRP neighbor adjacency.
What action should be taken to solve this problem?
Enable the serial interfaces of both routers.
Configure EIGRP to send periodic updates.
Configure the same hello interval between the routers.
Configure both routers with the same EIGRP process ID.
Observable Description Max Value
1 correctness of response 2 points for Option 4
0 points for any other option 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
9.2.2 Autonomous Systems and Process IDs
44
Refer to the exhibit. What happens to a packet that has 172.16.0.0/16 as the best match in the routing table that is shown?
The packet is discarded.
The packet is flooded out all interfaces.
The packet is forwarded via Serial0/0/0.
The packet is forwarded via FastEthernet0/0.
Observable Description Max Value
1 correctness of response 2 points for Option 1
0 points for any other option 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
9.2.6 Examining the Routing Table
45
Refer to the exhibit. All routers are configured for OSPF area 0. The network administrator requires that R2 always be the DR and maintain adjacency.
Which two configurations can achieve this? (Choose two.)
Change the OSPF area of R2 to a higher value.
Change the router ID for R2 by assigning the IP address 172.16.30.5/24 to
the Fa0/0 interface.
Change the priority values of the Fa0/0 interfaces of R1 and R3 to 0.
Configure a loopback interface on R2, with an IP address higher than any IP
address on the other routers.
Configure R1 and R3 with an IP address whose value is higher than that of R2.
Observable Description Max Value
1 correctness of response Option 3 and Option 4 are correct.
1 point for each correct option.
0 points if more options are selected than required. 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
11.4.2 DR/BDR Election Process
46
Refer to the exhibit. RTB is assigned Priority 10 and all other routers use the default priority setting. How will OSPF select the DR on network 10.10.8.4/30?
The router with the highest priority will become the DR.
The router with the highest IP address will become the BDR.
Network 10.10.8.4/30 does not require a DR.
The router with the highest loopback address will become the DR.
Observable Description Max Value
1 correctness of response 2 points for Option 3
0 points for any other option 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
11.4.2 DR/BDR Election Process
47 What command would the network administrator apply to a router that is running OSPF to advertise the entire range of addresses included in 172.16.0.0/19 in area 0?
R1(config-router)# network 172.16.0.0 0.0.0.255 area 0
R1(config-router)# network 172.16.0.0 0.0.3.255 area 0
R1(config-router)# network 172.16.0.0 0.0.15.255 area 0
R1(config-router)# network 172.16.0.0 0.0.31.255 area 0
Observable Description Max Value
1 correctness of response 2 points for Option 4
0 points for any other option 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
11.2.3 The network Command
48 What are two tasks that must be completed before two routers can use OSPF to form a neighbor adjacency? (Choose two.)
The routers must elect a designated router.
The routers must agree on the network type.
The routers must use the same dead interval.
The routers must exchange link state requests.
The routers must exchange database description packets.
Observable Description Max Value
1 correctness of response Option 2 and Option 3 are correct.
1 point for each correct option.
0 points if more options are selected than required. 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
11.1.4 Hello Protocol
49
Refer to the exhibit. Hosts on the BOS Fa0/0 LAN are able to ping the Fa0/1 interface on the JAX router and all interfaces on the BOS and ORL routers. Why would hosts from the 10.0.0.0/24 network not be able to ping hosts on the Fa0/0 LAN of the JAX router?
The JAX router has the wrong process ID.
The JAX router needs the network 10.0.0.0 0.0.0.255 area 0 command.
The JAX router needs the network 192.168.3.0 0.0.0.255 area 0 command.
The BOS router needs the network 192.168.3.0 0.0.0.255 area 0 command.
Observable Description Max Value
1 correctness of response 2 points for Option 3
0 points for any other option 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
11.2.3 The network Command
50
Refer to the exhibit. A network administrator is troubleshooting the OSPF network. The 10.10.0.0/16 network is not showing up in the routing table of Router1. What is the probable cause of this problem?
The serial interface on Router2 is down.
The OSPF process is not running on Router2.
The OSPF process is configured incorrectly on Router1.
There is an incorrect wildcard mask statement for network 10.10.0.0/16 on Router2.
Observable Description Max Value
1 correctness of response 2 points for Option 4
0 points for any other option 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
11.2.5 Verifying OSPF
11.2.6 Examining the Routing Table
1 What are two functions of a router? (Choose two.)
It forwards data packets toward their destination.
It forwards the packet to the destination if the TTL value is 0.
It changes the destination IP address of data packets before forwarding them to an exit interface.
It determines the best path based on the destination MAC address.
It acts as an intersection between multiple IP networks.
Observable Description Max Value
1 correctness of response Option 1 and Option 5 are correct.
1 point for each correct option.
0 points if more options are selected than required. 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
2.1.1 Role of the Router
2 Which router component contains a scaled-down version of the IOS that can be used to reload a complete version of the IOS in the event that the IOS becomes damaged or corrupted?
ROM
Flash
SDRAM
NVRAM
Observable Description Max Value
1 correctness of response 2 points for Option 1
0 points for any other option 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
1.1.2 Router CPU and Memory
3 Using default settings, what is the next step in the router boot sequence after the IOS loads from flash?
Perform the POST routine.
Search for a backup IOS in ROM.
Load the bootstrap program from ROM.
Load the running-config file from RAM.
Locate and load the startup-config file from NVRAM.
Observable Description Max Value
1 correctness of response 2 points for Option 5
0 points for any other option 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
1.1.4 Router Boot-up Process
4
Refer to the exhibit. How many routes are ultimate routes?
3
4
5
7
Observable Description Max Value
1 correctness of response 2 points for Option 3
0 points for any other option 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
8.1.3 Level 1 Routes
5
Refer to the exhibit. Which path will traffic from the 172.16.1.0/24 network take to get to the 10.0.0.0/24 network?
ADC
ABC
It will load balance the traffic between ADC and ABC
It will send the traffic via ABC, and will use ADC as a backup path only when ABC fails.
Observable Description Max Value
1 correctness of response 2 points for Option 3
0 points for any other option 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
3.3.3 Load Balancing
6
Refer to the exhibit. Routers R1 and R3 use different routing protocols with default administrative distance values. All devices are properly configured and the destination network is advertised by both protocols.
Which path will be used to transmit the data packets from PC1 to PC2?
The packets will travel via R2-R1.
The packets will travel via R2-R3.
The traffic will be load-balanced between two paths — via R2-R1 and via R2-R3.
The packets will travel via R2-R3, and the other path via R2-R1 will be retained as the backup path.
Observable Description Max Value
1 correctness of response 2 points for Option 1
0 points for any other option 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
3.3.3 Load Balancing
7
Refer to the exhibit. The network is configured for OSPF routing with default settings. The bandwidths have been configured correctly for each link. If the T1 link between router A and router E fails, what path will a packet from router A take to reach the LAN attached to router F when the network has converged?
A, B, C, F
A, B, C, E, F
A, D, G, E, F
A, D, G, H, F
Observable Description Max Value
1 correctness of response 2 points for Option 4
0 points for any other option 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
3.3.2 Metrics and Routing Protocols
8 In a lab test environment, a router has learned about network 172.16.1.0 through four different dynamic routing processes. Which route will be used to reach this network?
D 172.16.1.0/24 [90/2195456] via 192.168.200.1, 00:00:09, Serial0/0/0
O 172.16.1.0/24 [110/1012] via 192.168.200.1, 00:00:22, Serial0/0/0
R 172.16.1.0/24 [120/1] via 192.168.200.1, 00:00:17, Serial0/0/0
I 172.16.1.0/24 [100/1192] via 192.168.200.1, 00:00:09, Serial0/0/0
Observable Description Max Value
1 correctness of response 2 points for Option 1
0 points for any other option 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
5.5.2 Propagating the Default Route in RIPv1
9 Which two statements are true for link-state routing protocols? (Choose two.)
Routers that run a link-state protocol can establish a complete topology of the network.
Routers in a multipoint network that run a link-state protocol can exchange routing tables.
Routers use only hop count for routing decisions.
The shortest path first algorithm is used.
Split horizon is used to avoid routing loops.
Observable Description Max Value
1 correctness of response Option 1 and Option 4 are correct.
1 point for each correct option.
0 points if more options are selected than required. 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
10.1.1 Link-State Routing Protocols
10
Refer to the exhibit. Which option will provide the configuration that is needed for router R1 to dynamically learn routes to the 192.168.100.16/28, 192.168.100.32/28, and 192.168.100.48/28 subnetworks?
with static routes
with a routed protocol
with a routing protocol
with directly connected routes
Observable Description Max Value
1 correctness of response 2 points for Option 3
0 points for any other option 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
3.1.2 Network discovery and routing table maintenance
11
Refer to the exhibit. What is the meaning of the highlighted value 120?
It is the metric that is calculated by the routing protocol.
It is the value that is used by the DUAL algorithm to determine the bandwidth for the link.
It is the administrative distance of the routing protocol.
It is the hold-down time, measured in seconds, before the next update.
Observable Description Max Value
1 correctness of response 2 points for Option 3
0 points for any other option 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
5.3.1 Verifying RIP: show ip route
12 Which statement is true about the metrics used by routing protocols?
A metric is a value used by a particular routing protocol to compare paths to remote networks.
A common metric is used by all routing protocols.
The metric with the highest value is installed in the routing table.
The router may use only one parameter at a time to calculate the metric.
Observable Description Max Value
1 correctness of response 2 points for Option 1
0 points for any other option 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
3.3.1 Purpose of a Metric
13 Which routing protocol by default uses bandwidth and delay to calculate the metric of a route?
RIPv1
RIPv2
OSPF
EIGRP
Observable Description Max Value
1 correctness of response 2 points for Option 4
0 points for any other option 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
3.3.2 Metrics and Routing Protocols
14 Which three routing metrics are correctly defined? (Choose three.)
delay - the link speed
reliability - the error rate on a link
load - the amount of traffic on a link
cost - the value to indicate preference for a route
hop count - the path selected with the highest bandwidth
bandwidth - the amount of time it takes a packet to travel a link
Observable Description Max Value
1 correctness of response Option 2, Option 3, and Option 4 are correct.
1 point for each correct option.
0 points if more options are selected than required. 3
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
3.3.2 Metrics and Routing Protocols
15 Which two statements about routing protocols are accurate? (Choose two.)
OSPF supports VLSM.
RIPv1 supports VLSM.
RIPv2 does not have a hop count limit.
EIGRP supports discontiguous network designs.
RIPv2 does not support discontiguous network designs.
Observable Description Max Value
1 correctness of response Option 1 and Option 4 are correct.
1 point for each correct option.
0 points if more options are selected than required. 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
3.2.4 Classful and Classless
16
Refer to the exhibit. A device is required to complete the connection between router R1 and the WAN. Which two devices can be used for this? (Choose two.)
a CSU/DSU device
a modem
an Ethernet switch
a hub
a bridge
Observable Description Max Value
1 correctness of response Option 1 and Option 2 are correct.
1 point for each correct option.
0 points if more options are selected than required. 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
2.2.5 Examining Router Interfaces
17 When connecting two devices, which situation would normally require the use of a crossover cable?
connecting a host to a switch
connecting a switch to a router
connecting a switch to a switch
connecting a host to a router console port
Observable Description Max Value
1 correctness of response 2 points for Option 3
0 points for any other option 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
2.1.3 Examining the Connections of the Router
18
Refer to the exhibit. A network administrator has run the show interface command. The output of this command is displayed. What is the first step that is required to make this interface operational?
Switch the cable with a known working cable.
Issue the no shutdown command on the interface.
Configure the interface as a loopback interface.
Set the encapsulation for the interface.
Observable Description Max Value
1 correctness of response 2 points for Option 2
0 points for any other option 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
1.2.2 Basic Router Configuration
19 Which port should a terminal emulator be connected to in order to access a router without network connectivity?
T1
serial
console
FastEthernet
Observable Description Max Value
1 correctness of response 2 points for Option 3
0 points for any other option 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
1.1.5 Router Interfaces
20 Which router mode is accessed by entering the enable command?
user EXEC
privileged EXEC
global configuration
interface configuration
Observable Description Max Value
1 correctness of response 2 points for Option 2
0 points for any other option 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
1.2.2 Basic Router Configuration
21
Refer to the exhibit. When a static IP address is being configured on the host, what address should be used for the default gateway?
10.1.1.1
10.1.1.2
172.16.1.1
192.168.1.1
Observable Description Max Value
1 correctness of response 2 points for Option 4
0 points for any other option 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
1.2.1 Implementing Basic Addressing Schemes
22
Refer to the exhibit. The show cdp neighbors command was run on one of the devices as shown. Based on this information, which two facts can be determined? (Choose two.)
The command was run on the router.
ABCD is a non- CISCO device.
Layer 3 connectivity between two devices exists.
ABCD supports routing capability.
ABCD is connected to the Fa0/0 interface of the neighboring device.
Observable Description Max Value
1 correctness of response Option 1 and Option 5 are correct.
1 point for each correct option.
0 points if more options are selected than required. 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
2.3.4 Using CDP for Network Discovery
23
Refer to the exhibit. Which statement is true about the Ethernet interfaces shown in the network?
A frame leaves interface Fa0/0 of R1 with the source MAC address as 000C.3010.9260.
Hosts on 10.1.1.0/24 will use 172.16.3.1/24 as their default gateway.
A packet will not be forwarded between R1 and R2 until the no shutdown command is issued on the Fa0/0 interface of R1.
The Fa0/0 interface of R2 could be configured with the IP address 172.16.4.1/24 and still have connectivity on this link.
Observable Description Max Value
1 correctness of response 2 points for Option 1
0 points for any other option 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
2.2.2 Configuring an Ethernet Interface
24
Refer to the exhibit. Which solution provides the most efficient use of router resources for forwarding traffic between BR and HQ?
RIP
RIPv2
EIGRP
static routes
Observable Description Max Value
1 correctness of response 2 points for Option 4
0 points for any other option 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
2.4.1 Purpose and Command Syntax of ip route
25
Refer to the exhibit. Pings are failing between HostA and HostB. The network administrator discovers that Router1 does not have a route to the 172.16.0.0 network. Assuming Router2 is configured correctly, which two static routes could be configured on Router1 to enable Host A to reach network 172.16.0.0? (Choose two.)
ip route 172.16.0.0 255.255.0.0 S0/0
ip route 172.16.0.0 255.255.0.0 S0/1
ip route 172.16.0.0 255.255.0.0 192.168.0.1
ip route 172.16.0.0 255.255.0.0 192.168.0.2
ip route 192.168.0.1 172.16.0.0 255.255.0.0 S0/0
ip route 192.168.0.1 172.16.0.0 255.255.0.0 S0/1
Observable Description Max Value
1 correctness of response Option 1 and Option 4 are correct.
1 point for each correct option.
0 points if more options are selected than required. 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
2.7.3 Solving the Missing Route
26
Refer to the exhibit. How was the OSPF default gateway entry for R2 determined?
Default routes are automatically injected by OSPF into all advertisements.
A static default gateway route is defined in the configuration of R2.
The default-information originate command is applied on R1.
The ISP defines the gateway of last resort and automatically passes it to R1 and R2.
The ip default-gateway command is applied on R2.
Observable Description Max Value
1 correctness of response 2 points for Option 3
0 points for any other option 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
11.5.1 Redistributing an OSPF Default Route
27
Refer to the exhibit. On the basis of the show running-config output, which option correctly reflects the routes that will be listed in the R2 routing table?
Observable Description Max Value
1 correctness of response 2 points for Option 4
0 points for any other option 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
2.5.1 Configuring a Static Route with an Exit Interface
2.6.2 Default Static Route
28
Refer to the exhibit. A network administrator configures a static route on router R1 to reach the 192.168.1.0/24 network. Which IP address should be used as the next-hop address in the ip route command?
192.168.1.1
192.168.2.1
192.135.250.1
192.135.250.2
Observable Description Max Value
1 correctness of response 2 points for Option 4
0 points for any other option 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
2.4.1 Purpose and Command Syntax of ip route
29 Because of a topology change, the next hop IP address in the current static route must be reconfigured. How can a static route entry be altered to accommodate a topology change?
Keep the existing static route and configure a new static route with the correct next hop IP address.
Negate the existing static route and configure a new static route with the correct next hop IP address.
Do nothing. The existing static route will automatically update the next hop entry with the new IP address.
Keep the existing static route, reload the router, and configure a new static route with the correct next hop IP address.
Observable Description Max Value
1 correctness of response 2 points for Option 2
0 points for any other option 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
2.5.2 Modifying Static Routes
30
Refer to the exhibit. The entire 192.168.1.0 network has been allocated to address hosts in the diagram. Utilizing VLSM with contiguous address blocks, which set of addresses and prefixes could be used to create an addressing solution with a minimum waste of IP addresses?
Observable Description Max Value
1 correctness of response 2 points for Option 4
0 points for any other option 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
6.2.1 VLSM in Action
6.2.2 VLSM and IP Addresses
31
Refer to the exhibit. Which host has a combination of IP address and subnet mask on the same network as Fa0/0 of Router1?
host A
host B
host C
host D
Observable Description Max Value
1 correctness of response 2 points for Option 2
0 points for any other option 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
1.2.1 Implementing Basic Addressing Schemes
32
Refer to the exhibit. If the EIGRP routing protocol is used throughout the network, which IP address and mask prefix should be sent by router R1 to the Edge router as a result of manual summarization of LANs A, B, C, and D?
192.168.4.0/20
192.168.4.0/22
192.168.4.0/24
192.168.4.0/26
Observable Description Max Value
1 correctness of response 2 points for Option 2
0 points for any other option 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
6.3.2 Calculating Route Summarization
33
Refer to the exhibit. Routers RTRA and RTRB are running OSPF. What entry does RTRA add in the routing table when Serial 0/0/0 receives an update about the network that is attached to RTRB?
O 172.16.7.0/30 [110/51] via 10.10.10.2, 00:00:25, Serial0/0/0
O 172.16.7.16/28 [110/51] via 10.10.10.2, 00:00:25, Serial0/0/0
O 172.16.7.0/24 [110/51] via 10.10.10.2, 00:00:25, Serial0/0/0
O 172.16.0.0/16 [110/51] via 10.10.10.2, 00:00:25, Serial0/0/0
Observable Description Max Value
1 correctness of response 2 points for Option 2
0 points for any other option 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
6.1.4 Classless Routing Protocol
34
Refer to the exhibit. If RIPv1 is used as the routing protocol throughout the network, what RIPv1 route will router R1 advertise to router R3?
10.0.0.0
10.1.0.0
10.1.1.0
10.1.2.0
Observable Description Max Value
1 correctness of response 2 points for Option 1
0 points for any other option 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
6.1.2 Classful Routing Protocol
35 Which statement correctly describes a feature of RIP?
RIP is a link-state routing protocol.
RIP uses only one metric—hop count— for path selection.
Advertised routes with hop counts greater than 10 are unreachable.
Messages are broadcast every 10 seconds.
Observable Description Max Value
1 correctness of response 2 points for Option 2
0 points for any other option 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
5.1.2 RIPv1 Characteristics and Message Format
36
Refer to the exhibit. The network is using the RIPv2 routing protocol. If network 10.0.0.0 goes down, what mechanism will prevent Router1 from advertising false routing information back to Router2?
triggered updates
poison reverse
holddown timers
split horizon
Observable Description Max Value
1 correctness of response 2 points for Option 4
0 points for any other option 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
4.4.5 Split Horizon Rule
37 Which mechanism helps to avoid routing loops by advertising a metric of infinity?
route poisoning
split horizon
hold-down timer
triggered updates
Observable Description Max Value
1 correctness of response 2 points for Option 1
0 points for any other option 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
4.4.6 Split Horizon with Poison Reverse or Route Poisoning
38
Refer to the exhibit. When troubleshooting a network, it is important to interpret the output of various router commands. On the basis of the exhibit, which three statements are true? (Choose three.)
The missing information for Blank 1 is the command show ip route.
The missing information for Blank 1 is the command debug ip route.
The missing information for Blank 2 is the number 100.
The missing information for Blank 2 is the number 120.
The missing information for Blank 3 is the letter R.
The missing information for Blank 3 is the letter C.
Observable Description Max Value
1 correctness of response Option 1, Option 4, and Option 6 are correct.
1 point for each correct option.
0 points if more options are selected than required. 3
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
3.5.1 Identifying Elements of the Routing Table
39
Refer to the exhibit. R1 and R2 are adjacent routers both running RIP. All interfaces on both routers are correctly configured and operational. Both routers are configured to include all connected interfaces in routing updates. R2 is not showing any routes from R1 in the routing table. What is the likely cause?
The adjacent interfaces are passive.
The distance of 120 exceeds 15 hops.
R2 will not accept version 1 updates from R1.
Routes are being summarized by R1 but not by R2.
Observable Description Max Value
1 correctness of response 2 points for Option 3
0 points for any other option 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
7.2.1 Enabling and Verifying RIPv2
40
Refer to the exhibit. All routers are configured to use the EIGRP routing protocol with default settings, all routes are advertised on all routers, and the network is fully converged. Which path will the data take to travel between 172.16.1.0/24 and 192.168.100.0/24?
It will travel via A, B, and C.
It will travel via A, F, E, D, and C.
It will travel via A, G, H, and C.
The traffic will be load-balanced on all paths.
Observable Description Max Value
1 correctness of response 2 points for Option 2
0 points for any other option 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
9.3.2 EIGRP Metrics
41 Which multicast address does EIGRP use to send hello and updates packets?
224.0.0.5
224.0.0.6
224.0.0.9
224.0.0.10
Observable Description Max Value
1 correctness of response 2 points for Option 4
0 points for any other option 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
9.1.4 RTP and EIGRP Packet Types
42 A router has EIGRP configured as the only routing protocol. In what way might EIGRP respond if there is no feasible successor route to a destination network and the successor route fails?
It broadcasts hello packets to all routers in the network to re-establish neighbor adjacencies.
It sends queries to adjacent neighbors until a new successor route is found.
It immediately sends its entire routing table to its neighbors.
It will set the metric for the failed route to infinity.
Observable Description Max Value
1 correctness of response 2 points for Option 2
0 points for any other option 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
9.4.6 Finite State Machine
43
Refer to the exhibit. EIGRP 1 has been configured on R1. What is the effect of configuring the ip bandwidth-percent eigrp command?
The EIGRP bandwidth routing metric will be reduced by 30%.
EIGRP 1 protocol traffic will be restricted to 30% of the link bandwidth.
Packets that are routed based on EIGRP routing table entries will be limited to 30% of the link bandwidth.
EIGRP traffic will be permitted to burst for short periods to 30% above the configured link bandwidth.
Observable Description Max Value
1 correctness of response 2 points for Option 2
0 points for any other option 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
9.5.5 Fine-tuning EIGRP
44
Refer to the exhibit. Which two statements are true based on the exhibited output? (Choose two.)
All routes are stable.
Each route has one feasible successor.
The serial interface between the two routers is down.
The administrative distance of EIGRP has been set to 50.
The show ip eigrp topology command has been run on R1.
Observable Description Max Value
1 correctness of response Option 1 and Option 5 are correct.
1 point for each correct option.
0 points if more options are selected than required. 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
9.5.2 Disabling Automatic Summarization
45
Refer to the exhibit. A network designer is testing a prototype of WAN connections. All of the routers in the exhibit are configured for OSPF routing. The design requires that the path between routers A and D through ISP-A is the primary and the path through ISP-B servers as a backup. The designer notices that router A has two equal-cost paths to the LAN on router D. How can the designer correct this problem?
Issue a clock rate 2000000 interface command on S0/0/1 of router ISP-B.
Change the default OSPF reference bandwidth on router A.
Configure two static routes with administrative distances of 10.
Use the bandwidth command to change the default bandwidth on the link to router B.
Observable Description Max Value
1 correctness of response 2 points for Option 4
0 points for any other option 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
11.3.2 Modifying the Cost of the Link
46
Refer to the exhibit. R1 and R2 are unable to establish an adjacency. What two configuration changes will correct the problem? (Choose two.)
Set a lower priority on R2.
Configure the routers in the same area.
Set a lower cost on R2 compared to R1.
Add a backup designated router to the network.
Match the hello and dead timers on both routers.
Observable Description Max Value
1 correctness of response Option 2 and Option 5 are correct.
1 point for each correct option.
0 points if more options are selected than required. 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
11.2.5 Verifying OSPF
47
Refer to the exhibit. If the router loopback interfaces, FastEthernet interfaces, and OSPF priorities are configured as shown, which router would win an OSPF DR election?
A
B
C
D
Observable Description Max Value
1 correctness of response 2 points for Option 2
0 points for any other option 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
11.4.2 DR/BDR Election Process
48 Two routers need to be configured within a single OSPF area. Which two components need to be configured on both routers to achieve this? (Choose two.)
the same process ID
the same area ID
network addresses and wildcard masks
the same router ID
the same loop back address
Observable Description Max Value
1 correctness of response Option 2 and Option 3 are correct.
1 point for each correct option.
0 points if more options are selected than required. 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
11.2.3 The network Command
49
Refer to the exhibit. What OSPF network statements are required for the router B to advertise the three networks that are attached?
router ospf 1
network 10.0.0.0 0.0.0.255 area 0
router ospf 1
network 10.1.1.0 0.3.255.255 area 0
network 10.10.1.0 0.255.255.255 area 0
network 10.20.1.0 0.255.255.255 area 0
router ospf 1
network 10.1.1.0 0.0.0.3 area 0
network 10.10.1.0 0.0.255.255 area 0
network 10.20.1.0 0.0.255.255 area 0
router ospf 1
network 10.1.1.0 0.0.0.3 area 0
network 10.10.1.0 0.0.0.255 area 0
network 10.20.1.0 0.0.0.255 area 0
Observable Description Max Value
1 correctness of response 2 points for Option 4
0 points for any other option 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
11.2.3 The network Command
50
Refer to the exhibit. A network administrator is trying to determine why router JAX has no OSPF routes in its routing table. All routers are configured for OSPF area 0. From the JAX router, the administrator is able to ping its connected interfaces and the Fa0/1 interface of the ORL router but no other router interfaces. What is a logical step that the network administrator should take to troubleshoot the problem?
Reboot the routers.
Change the OSPF process ID on all of the routers to 0.
Check to see if the cable is loose between ORL and JAX.
Check to see if CDP packets are passing between the routers.
Use show and debug commands to determine if hellos are propagating.
Observable Description Max Value
1 correctness of response 2 points for Option 5
0 points for any other option 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
10.1.6 Building the Link-State Packet
1 A network administrator is in charge of two separate networks that share a single building. What device will be required to connect the two networks and add a common connection to the Internet that can be shared?
hub
router
access point
Ethernet switch
Observable Description Max Value
1 correctness of response 2 points for Option 2
0 points for any other option 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
1.1.1 Routers are Computers
2 Which two router component and operation pair are correctly described? (Choose two.)
DRAM - loads the bootstrap
RAM - stores the operating system
Flash - executes diagnostics at bootup
NVRAM - stores the configuration file
ROM - stores the backup configuration file
POST - runs diagnostics on hardware modules
Observable Description Max Value
1 correctness of response Option 4 and Option 6 are correct.
1 point for each correct option.
0 points if more options are selected than required. 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
1.1.2 Router CPU and Memory
3 A router boots and enters setup mode. What is the reason for this?
The IOS image is corrupt.
Cisco IOS is missing from flash memory.
The configuration file is missing from NVRAM.
The POST process has detected hardware failure.
Observable Description Max Value
1 correctness of response 2 points for Option 3
0 points for any other option 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
1.1.4 Router Boot-up Process
4
Refer to the exhibit. Packets destined to which two networks will require the router to perform a recursive lookup? (Choose two.)
10.0.0.0/8
64.100.0.0/16
128.107.0.0/16
172.16.40.0/24
192.168.1.0/24
192.168.2.0/24
Observable Description Max Value
1 correctness of response Option 1 and Option 6 are correct.
1 point for each correct option.
0 points if more options are selected than required. 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
2.3.3 Cisco Discovery Protocol (CDP)
5 Which candidate route has the longest match for a packet with a destination address of 10.30.16.48?
10.30.0.0/16
10.30.15.0/23
10.30.16.0/24
10.30.16.32/27
10.30.16.32/30
Observable Description Max Value
1 correctness of response 2 points for Option 4
0 points for any other option 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
8.2.2 Longest Match: Level 1 Network Routes
6
Refer to the exhibit. Routers R1 and R3 use different routing protocols with default administrative distance values. All devices are properly configured and the destination network is advertised by both protocols.
Which path will be used to transmit the data packets from PC1 to PC2?
The packets will travel via R2-R1.
The packets will travel via R2-R3.
The traffic will be load-balanced between two paths — via R2-R1 and via R2-R3.
The packets will travel via R2-R3, and the other path via R2-R1 will be retained as the backup path.
Observable Description Max Value
1 correctness of response 2 points for Option 1
0 points for any other option 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
3.3.3 Load Balancing
7 In a complex lab test environment, a router has discovered four paths to 192.168.1.0/24 via the use of the RIP routing process. Which route will be installed in the routing table after the discovery of all four paths?
R 192.168.1.0/24 [120/3] via 192.168.110.1, 00:00:17, Serial0/1/0
R 192.168.1.0/24 [120/2] via 192.168.200.1, 00:00:17, Serial0/0/0
R 192.168.1.0/24 [120/1] via 192.168.100.1, 00:00:17, Serial0/0/1
R 192.168.1.0/24 [120/4] via 192.168.101.1, 00:00:17, Serial0/1/1
Observable Description Max Value
1 correctness of response 2 points for Option 3
0 points for any other option 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
5.5.2 Propagating the Default Route in RIPv1
8
Refer to the exhibit. The router receives a packet that is destined for 192.168.5.79. How will the router handle this packet?
It will forward the packet via the FastEthernet0/0 interface.
It will forward the packet via the Serial0/0/0 interface.
It will forward the packet via the Serial0/0/1 interface.
It will drop the packet.
Observable Description Max Value
1 correctness of response 2 points for Option 3
0 points for any other option 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
2.6.2 Default Static Route
9 A network administrator uses the RIP routing protocol to implement routing within an autonomous system. What are two characteristics of this protocol? (Choose two.)
It uses the Bellman-Ford algorithm to determine the best path.
It displays an actual map of the network topology.
It offers rapid convergence in large networks.
It periodically sends complete routing tables to all connected devices.
It is beneficial in complex and hierarchically designed networks.
Observable Description Max Value
1 correctness of response Option 1 and Option 4 are correct.
1 point for each correct option.
0 points if more options are selected than required. 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
3.2.3 Distance Vector and Link State
10 Which two statements are true for link-state routing protocols? (Choose two.)
Routers that run a link-state protocol can establish a complete topology of the network.
Routers in a multipoint network that run a link-state protocol can exchange routing tables.
Routers use only hop count for routing decisions.
The shortest path first algorithm is used.
Split horizon is used to avoid routing loops.
Observable Description Max Value
1 correctness of response Option 1 and Option 4 are correct.
1 point for each correct option.
0 points if more options are selected than required. 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
10.1.1 Link-State Routing Protocols
11 Which two statements are true about classless routing protocols? (Choose two.)
They can be used for discontiguous subnets.
They can forward supernet routes in routing updates.
They cannot implement classful routes in routing tables.
They use only a hop count metric.
They do not include the subnet mask in routing updates.
Observable Description Max Value
1 correctness of response Option 1 and Option 2 are correct.
1 point for each correct option.
0 points if more options are selected than required. 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
3.2.4 Classful and Classless
12 Which statement is true regarding routing metrics?
All routing protocols use the same metrics.
EIGRP uses bandwidth as its only metric.
Routers compare metrics to determine the best route.
The larger metric generally represents the better path.
Observable Description Max Value
1 correctness of response 2 points for Option 3
0 points for any other option 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
3.3.1 Purpose of a Metric
13 Which routing protocol by default uses bandwidth and delay to calculate the metric of a route?
RIPv1
RIPv2
OSPF
EIGRP
Observable Description Max Value
1 correctness of response 2 points for Option 4
0 points for any other option 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
3.3.2 Metrics and Routing Protocols
14 You have been asked to explain converged networks to a trainee. How would you accurately describe a converged network?
A network is converged when all routers have formed an adjacency.
A network is converged immediately after a topology change has occurred.
A network is converged when all routers flush the unreachable networks from their routing tables.
A network is converged after all routers share the same information, calculate best paths, and update their routing tables.
Observable Description Max Value
1 correctness of response 2 points for Option 4
0 points for any other option 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
3.2.3 Distance Vector and Link State
15
Refer to the exhibit. All the routers are properly configured to use the RIP routing protocol with default settings, and the network is fully converged. Router A is forwarding data to router E. Which statement is true about the routing path?
Router A will send the data via the A-D-E path that is listed in the routing table.
Router A will load-balance the traffic between A-B-E and A-C-E.
Router A will determine that all paths have equal metric cost.
Router A will send the data through A-D-E and keep A-B-E and A-C-E as the backup paths.
Observable Description Max Value
1 correctness of response 2 points for Option 3
0 points for any other option 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
3.4.1 Purpose of Administrative Distance
16
Refer to the exhibit. A device is required to complete the connection between router R1 and the WAN. Which two devices can be used for this? (Choose two.)
a CSU/DSU device
a modem
an Ethernet switch
a hub
a bridge
Observable Description Max Value
1 correctness of response Option 1 and Option 2 are correct.
1 point for each correct option.
0 points if more options are selected than required. 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
2.2.5 Examining Router Interfaces
17 Which component is typically used to connect the WIC interface of a router to a CSU/DSU?
V.35 cable
RJ-45 adapter
crossover cable
straight-through cable
Observable Description Max Value
1 correctness of response 2 points for Option 1
0 points for any other option 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
2.2.5 Examining Router Interfaces
18 Which router mode is accessed by entering the enable command?
user EXEC
privileged EXEC
global configuration
interface configuration
Observable Description Max Value
1 correctness of response 2 points for Option 2
0 points for any other option 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
1.2.2 Basic Router Configuration
19
Refer to the exhibit. What are the effects of the exhibited commands on the router?
All passwords are encrypted.
Only Telnet sessions are encrypted.
Only the enable password is encrypted.
Only the enable password and Telnet session are encrypted.
Enable and console passwords are encrypted.
Observable Description Max Value
1 correctness of response 2 points for Option 3
0 points for any other option 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
1.2.2 Basic Router Configuration
20
Refer to the exhibit. A technician has configured the interfaces on the Router, but upon inspection discovers that interface FastEthernet0/1 is not functioning. Which action will most likely correct the problem with FastEthernet0/1?
A clock rate should be added to the interface configuration.
The subnet mask should be added to the interface configuration.
An interface description needs to be added to the interface configuration.
The no shutdown command needs to be added to the interface configuration.
Observable Description Max Value
1 correctness of response 2 points for Option 4
0 points for any other option 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
1.2.2 Basic Router Configuration
21
Refer to the exhibit. Which two facts can be derived from this output? (Choose two.)
Three network devices are directly connected to Router2.
The serial interface between Router2 and Router3 is up.
Router1 and Router3 are directly connected.
Six devices are up and running on the network.
Layer 3 functionality between routers is configured properly.
Observable Description Max Value
1 correctness of response Option 1 and Option 2 are correct.
1 point for each correct option.
0 points if more options are selected than required. 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
2.3.4 Using CDP for Network Discovery
22
Refer to the exhibit. Which route in the routing table of R1 will be discarded by its neighboring router?
192.168.2.0
192.168.3.0
192.168.4.0
192.168.9.0
192.168.10.0
192.168.11.0
Observable Description Max Value
1 correctness of response 2 points for Option 3
0 points for any other option 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
5.1.2 RIPv1 Characteristics and Message Format
23
Refer to the exhibit. All interfaces are addressed and functioning correctly. The network administrator runs the tracert command on host A. Which two facts could be responsible for the output of this command? (Choose two.)
The gateway for Host A is missing or improperly configured.
The gateway for Host B is missing or improperly configured.
The entry for 192.168.1.0/24 is missing from the routing table of R1.
The entry for 192.168.1.0/24 is missing from the routing table of R2.
The entry for 192.168.2.0/24 is missing from the routing table of R1.
The entry for 192.168.2.0/24 is missing from the routing table of R2.
Observable Description Max Value
1 correctness of response Option 4 and Option 5 are correct.
1 point for each correct option.
0 points if more options are selected than required. 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
2.7.2 Troubleshooting a Missing Route
24 In which situation would a default static route be recommended?
when connecting an edge router to the Internet
when variable length subnet masking is in effect
when there is more than one valid route for a destination network
when a destination network has a larger mask than any routes in the routing table
Observable Description Max Value
1 correctness of response 2 points for Option 1
0 points for any other option 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
2.6.2 Default Static Route
25 What is the advantage of configuring a static route with an exit interface instead of a next-hop address?
The router will perform a recursive lookup.
This route will automatically be used as the gateway of last resort.
The exit interface configuration consumes less router processing time.
The exit interface configuration has an administrative distance value of 1.
Observable Description Max Value
1 correctness of response 2 points for Option 3
0 points for any other option 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
2.5.1 Configuring a Static Route with an Exit Interface
26
Refer to the exhibit. On the basis of the show running-config output, which option correctly reflects the routes that will be listed in the R2 routing table?
Observable Description Max Value
1 correctness of response 2 points for Option 4
0 points for any other option 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
2.5.1 Configuring a Static Route with an Exit Interface
2.6.2 Default Static Route
27 A static route has been configured on a router. However, the destination network no longer exists. What should an administrator do to remove the static route from the routing table?
Change the routing metric for that route.
Nothing. The static route will go away on its own.
Change the administrative distance for that route.
Remove the route using the no ip route command.
Observable Description Max Value
1 correctness of response 2 points for Option 4
0 points for any other option 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
2.5.2 Modifying Static Routes
28
Refer to the exhibit. Hosts on the 192.168.1.0 network cannot communicate with hosts on the 172.16.1.1 network. The network administrator has run the show ip route command on R1.
What could be the cause of this problem?
The FastEthernet interface on R1 is disabled.
Autosummarization is enabled on R1.
The serial interface S0/0/0 of R1 is administratively down.
No static route or routing protocol is configured.
Observable Description Max Value
1 correctness of response 2 points for Option 4
0 points for any other option 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
2.6.2 Default Static Route
29
Refer to the exhibit. The users on the local network 172.16.1.0/24 complain that they are unable to connect to the Internet. What step should be taken to remedy the problem?
A new static route must be configured on R1 with the R3 serial interface as the next hop.
A new default route must be configured on R1 with the R3 serial interface as the next hop.
The default route on R2 should be configured with the R3 serial interface as the next hop.
The default route on R2 must be replaced with a new static route and the next hop should be the R1 FastEthernet interface.
Observable Description Max Value
1 correctness of response 2 points for Option 3
0 points for any other option 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
2.6.2 Default Static Route
30 A network administrator needs to assign the very last usable IP address in the 172.24.64.0/18 network range to the router interface that serves this LAN. Which IP address should the administrator configure on the interface?
172.16.128.154/18
172.16.255.254/18
172.24.64.254/18
172.24.127.254/18
Observable Description Max Value
1 correctness of response 2 points for Option 4
0 points for any other option 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
6.1.1 Classful IP Addressing
31
Refer to the exhibit. Which summarization should R1 use to advertise its networks to R2?
192.168.1.0/24
192.168.0.0/24
192.168.0.0/22
192.168.1.0/22
Observable Description Max Value
1 correctness of response 2 points for Option 3
0 points for any other option 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
6.3.1 Route Summarization
32
Refer to the exhibit. Host A is unable to access the Internet. What is the reason for this?
The IP address of host A is incorrect.
The default gateway of host A is incorrect.
The Fa0/1 interfaces of the two routers are configured for different subnets.
The subnet mask for the Fa0/0 interface of R1 is incorrect.
Observable Description Max Value
1 correctness of response 2 points for Option 3
0 points for any other option 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
1.2.1 Implementing Basic Addressing Schemes
33
Refer to the exhibit. What does the highlighted entry for network 172.30.0.0/16 indicate?
Automatic summarization is enabled on R1.
The routing table of R2 contains only classful networks.
R2 will reject this update.
The routing protocol that is configured on both routers is RIPv1.
Observable Description Max Value
1 correctness of response 2 points for Option 1
0 points for any other option 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
7.2.2 Auto-summary and RIPv2
34 Which additional piece of information is included in the updates of classless routing protocols to support the use of VLSM and discontiguous networks?
metric
network mask
neighbor router ID
administrative distance
Observable Description Max Value
1 correctness of response 2 points for Option 2
0 points for any other option 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
7.2.1 Enabling and Verifying RIPv2
35
Refer to the exhibit. The network is running the RIP routing protocol. Network 10.0.0.0 goes down. Which statement is true regarding how the routers in this topology will respond to this event?
Router4 will learn about the failed route 30 seconds later in the next periodic update.
Split horizon will prevent Router4 from fowarding packets to the 10.0.0.0 network until the holddown timer expires.
Router5 immediately flushes the unreachable route from its routing table.
Router5 will send Router4 a triggered update with a metric of 16 for network 10.0.0.0.
Observable Description Max Value
1 correctness of response 2 points for Option 4
0 points for any other option 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
4.4.6 Split Horizon with Poison Reverse or Route Poisoning
36 What is the purpose of the TTL field within an IP packet header?
clears an unreachable route from the routing table after the invalid timer expires
prevents regular update messages from inappropriately reinstating a route that may have gone bad
removes an unreachable route from the routing table after the flush timer expires
limits the period of time or number of hops a packet can traverse through the network before it should be discarded
used to mark the route as unreachable in a routing update that is sent to other routers
Observable Description Max Value
1 correctness of response 2 points for Option 4
0 points for any other option 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
4.4.7 IP and TTL
37 Which two technologies can be used in distance vector routing protocols to prevent routing loops? (Choose two.)
authentication
link-state advertisements
hold-down timers
Spanning Tree Protocol
split horizon
Observable Description Max Value
1 correctness of response Option 3 and Option 5 are correct.
1 point for each correct option.
0 points if more options are selected than required. 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
4.4.1 Definition and Implications
38
Refer to the exhibit. PC1 is unable to access the Internet. What is the cause of the problem?
An incorrect IP address is configured between the two routers.
No static route is configured on Router2.
A routing loop has occurred.
No routing protocol is configured on either of the two routers.
Observable Description Max Value
1 correctness of response 2 points for Option 3
0 points for any other option 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
4.4.6 Split Horizon with Poison Reverse or Route Poisoning
39
Refer to the exhibit. Both routers are using the RIPv2 routing protocol and static routes are undefined. R1 can ping 192.168.2.1 and 10.1.1.2, but is unable to ping 192.168.4.1.
What is the reason for the ping failure?
The serial interface between two routers is down.
R2 is not forwarding the routing updates.
The 192.168.4.0 network is not included in the RIP configuration of R2.
RIPv1 needs to be configured.
Observable Description Max Value
1 correctness of response 2 points for Option 3
0 points for any other option 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
7.2.1 Enabling and Verifying RIPv2
40 A sniffer program has captured a packet with a destination IP address of 224.0.0.10. Which protocol uses this IP address?
RIP
RIPv2
OSPF
EIGRP
Observable Description Max Value
1 correctness of response 2 points for Option 4
0 points for any other option 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
9.1.2 EIGRP Message Format
41 When would the network administrator use the ip bandwidth-percent eigrp as-number percent command?
when there is a low bandwidth connection
when the connection is on a shared medium
when the connection is serial instead of Ethernet
when the link is always busy
Observable Description Max Value
1 correctness of response 2 points for Option 1
0 points for any other option 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
9.5.5 Fine-tuning EIGRP
42
Refer to the exhibit. A network technician notes that there are missing EIGRP routes in the routing tables on each router in this network. Based on the exhibited output, what caused these missing routes?
The holdtime values are mismatched.
The autonomous system numbers are mismatched.
The interfaces on the link between RouterC and RouterD are shut down.
An EIGRP neighbor relationship has not been established between RouterA and RouterB.
Observable Description Max Value
1 correctness of response 2 points for Option 2
0 points for any other option 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
9.2.5 Verifying EIGRP
43
Refer to the exhibit. What will occur if the link to 192.168.2.0/24 through the FastEthernet0/0 interface fails?
The DUAL algorithm will place 192.168.2.0/24 in an active state.
The route to 192.168.2.0/24 will be dropped from the routing table.
The feasible successor through Serial0/0/0 will be installed in the routing table.
The 192.168.0.1 link through Serial0/0/0 will be recalculated to see if it is a feasible successor.
Packets that are destined for 192.168.2.0/24 will be broadcast through all interfaces until a successor route is determined.
Observable Description Max Value
1 correctness of response 2 points for Option 3
0 points for any other option 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
9.4.5 Topology Table: No Feasible Successor
9.4.6 Finite State Machine
44
Refer to the exhibit. Host A is having problems accessing server A. All routers have the same EIGRP configuration as router RTR_A. What should be done so that host A can access server A?
Add the command no auto-summary on all routers.
Change the network statements to include a wildcard mask.
Adjust the EIGRP hello timers to account for the network delay.
Add the command eigrp log-neighbor-changes on all routers.
Observable Description Max Value
1 correctness of response 2 points for Option 1
0 points for any other option 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
9.5.2 Disabling Automatic Summarization
45
Refer to the exhibit. R1 and R2 are unable to establish an adjacency. What two configuration changes will correct the problem? (Choose two.)
Set a lower priority on R2.
Configure the routers in the same area.
Set a lower cost on R2 compared to R1.
Add a backup designated router to the network.
Match the hello and dead timers on both routers.
Observable Description Max Value
1 correctness of response Option 2 and Option 5 are correct.
1 point for each correct option.
0 points if more options are selected than required. 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
11.2.5 Verifying OSPF
46
Refer to the exhibit. The IP addresses on all interfaces on router R1 were configured before the OSPF protocol had been enabled on the router. No OSPF router ID was manually configured. Which IP address will be selected by the router as an OSPF router ID?
10.10.10.1
172.16.1.1
172.16.2.1
192.168.1.1
192.168.100.1
Observable Description Max Value
1 correctness of response 2 points for Option 1
0 points for any other option 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
11.2.4 OSPF Router ID
47 What are two advantages of using a loopback interface on a router with OSPF enabled? (Choose two.)
A loopback interface has a much lower OSPF cost value by default.
A loopback interface provides a stable ID because the loopback interface cannot be shutdown.
A network administrator has more control over the DR/BDR election by using a loopback interface over a physical interface.
A loopback interface can be configured with a higher bandwidth value than can a physical interface.
The loopback interface address overrides any physical interface address or configured router-id value.
Observable Description Max Value
1 correctness of response Option 2 and Option 3 are correct.
1 point for each correct option.
0 points if more options are selected than required. 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
11.2.4 OSPF Router ID
48
Refer to the exhibit. A network administrator has configured OSPF using the following command:
network 192.168.1.32 0.0.0.31 area 0
Which router interface will participate in OSPF?
FastEthernet0/0
FastEthernet0/1
Serial0/0/0
Serial0/0/1
Observable Description Max Value
1 correctness of response 2 points for Option 3
0 points for any other option 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
11.2.3 The network Command
49
Refer to the exhibit. All interfaces are configured with the correct IP addresses and subnet masks. OSPF has been configured as the routing protocol. During troubleshooting, it is determined that hosts on network B can ping the Lo0 interface on R1 but are unable to reach hosts on network A. What is the cause of the problem?
Routers R1 and R2 have incorrect router IDs configured.
Router R1 is unable to form a neighbor relationship with router R2.
Routers R1 and R2 have been configured in different OSPF areas.
The configuration of router R1 fails to include network A in the OSPF routing process.
Observable Description Max Value
1 correctness of response 2 points for Option 4
0 points for any other option 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
11.2.5 Verifying OSPF
50
Refer to the exhibit. What does the state "FULL/ -" indicate?
The DR/BDR election is currently taking place.
The router with router ID 10.112.0.34 and RouterA are on a point-to-point network.
RouterA could not form a neighbor relationship with the router with router ID 10.112.0.34.
OSPF hello and dead timers between RouterA and the router with router ID 10.112.0.34 do not match.
Observable Description Max Value
1 correctness of response 2 points for Option 2
0 points for any other option 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
11.4.1 Challenges in Multiaccess Networks
Saturday, August 28, 2010
ERouting Final Exam - C
packet switching
microsegmentation
domain name resolution
path selection
flow control
Observable Description Max Value
1 correctness of response Option 1 and Option 4 are correct.
1 point for each correct option.
0 points if more options are selected than required. 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
1.1.1 Routers are Computers
2 Using default settings, what is the next step in the router boot sequence after the IOS loads from flash?
Perform the POST routine.
Search for a backup IOS in ROM.
Load the bootstrap program from ROM.
Load the running-config file from RAM.
Locate and load the startup-config file from NVRAM.
Observable Description Max Value
1 correctness of response 2 points for Option 5
0 points for any other option 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
1.1.4 Router Boot-up Process
3 Which two locations can be the source of the Cisco IOS that is used by a router during the bootup process? (Choose two.)
flash memory
RAM
NVRAM
TFTP server
configuration register
Observable Description Max Value
1 correctness of response Option 1 and Option 4 are correct.
1 point for each correct option.
0 points if more options are selected than required. 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
1.1.4 Router Boot-up Process
4 What are two switching functions of a router? (Choose two.)
The router encapsulates the packet in the appropriate data link frame type for the outgoing data link.
The router re-encapsulates the packet in a new frame, which results in a change of the Layer 2 header at each hop.
The router determines the exit interface after data encapsulation.
The router changes the source logical address to the forwarding router interface logical address.
The router re-encapsulates the IP packet if no matching entry is found in the routing table and no default route is configured.
Observable Description Max Value
1 correctness of response Option 1 and Option 2 are correct.
1 point for each correct option.
0 points if more options are selected than required. 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
1.4.4 Path Determination
5
Refer to the exhibit. Which statement is true concerning the routing configuration?
Using dynamic routing instead of static routing would have required fewer configuration steps.
The 10.1.1.0/24 and 10.1.2.0/24 routes have adjacent boundaries and should be summarized.
Packets routed to the R2 Fast Ethernet interface require two routing table lookups.
The static route will not work correctly.
Observable Description Max Value
1 correctness of response 2 points for Option 3
0 points for any other option 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
2.4.1 Purpose and Command Syntax of ip route
6
Refer to the exhibit. How many routes are ultimate routes?
3
4
5
7
Observable Description Max Value
1 correctness of response 2 points for Option 3
0 points for any other option 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
8.1.3 Level 1 Routes
7
Refer to the exhibit. All routers are properly configured with default configurations and are running the OSPF routing protocol. The network is fully converged. A host on the 192.168.3.0/24 network is communicating with a host on the 192.168.2.0/24 network.
Which path will be used to transmit the data?
The data will be transmitted via R3-R2.
The data will be transmitted via R3-R1-R2.
The traffic will be load-balanced between two paths — one via R3-R2, and the other via R3-R1-R2.
The data will be transmitted via R3-R2, and the other path via R3-R1-R2 will be retained as the backup path.
Observable Description Max Value
1 correctness of response 2 points for Option 2
0 points for any other option 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
3.3.3 Load Balancing
8
Refer to the exhibit. A network administrator adds this command to router R1: ip route 192.168.2.0 255.255.255.0 S0/0/0. What is the result of adding this command?
This route is automatically propagated throughout the network.
The traffic for network 172.16.1.0 is forwarded to network 192.168.2.0.
A static route is established.
The traffic for all Class C networks is forwarded to 172.16.1.2.
Observable Description Max Value
1 correctness of response 2 points for Option 3
0 points for any other option 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
2.5.1 Configuring a Static Route with an Exit Interface
9 Which two situations require the use of a link-state protocol? (Choose two.)
Fast convergence of the network is critical.
The network is very large.
The network administrator has limited knowledge to configure and troubleshoot routing protocols.
The network is a flat network.
The capacity of the router is low.
Observable Description Max Value
1 correctness of response Option 1 and Option 2 are correct.
1 point for each correct option.
0 points if more options are selected than required. 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
3.2.3 Distance Vector and Link State
10 What are two ways that a router can learn of the paths to destination networks? (Choose two.)
updates from other routers
DHCP information broadcasts
manual configuration of routes
ARP requests from connected routers
inspection of the destination IP address in data packets
updates from the SMTP management information base
Observable Description Max Value
1 correctness of response Option 1 and Option 3 are correct.
1 point for each correct option.
0 points if more options are selected than required. 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
3.1.1 Perspective and Background
11
Refer to the exhibit. What is the meaning of the highlighted value 120?
It is the metric that is calculated by the routing protocol.
It is the value that is used by the DUAL algorithm to determine the bandwidth for the link.
It is the administrative distance of the routing protocol.
It is the hold-down time, measured in seconds, before the next update.
Observable Description Max Value
1 correctness of response 2 points for Option 3
0 points for any other option 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
5.3.1 Verifying RIP: show ip route
12 Which statement is true about the metrics used by routing protocols?
A metric is a value used by a particular routing protocol to compare paths to remote networks.
A common metric is used by all routing protocols.
The metric with the highest value is installed in the routing table.
The router may use only one parameter at a time to calculate the metric.
Observable Description Max Value
1 correctness of response 2 points for Option 1
0 points for any other option 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
3.3.1 Purpose of a Metric
13 When presented with multiple valid routes to a destination, what criteria does a router use to determine which routes to add to the routing table?
The router selects the routes with the best metric. All routes that have the same best metric are added to the routing table.
The router first selects routes with the lowest administrative distance. The resulting routes are then prioritized by metric and the routes with the best metric are added to the routing table.
The router selects the routes with the lowest administrative distance. All routes with the same lowest administrative distance are added to the routing table.
The router installs all routes in the routing table but uses the route with the best metric most when load balancing.
Observable Description Max Value
1 correctness of response 2 points for Option 2
0 points for any other option 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
3.4.1 Purpose of Administrative Distance
14
Refer to the exhibit. What are two of the routes added to the routing table of R1? (Choose two.)
R 172.16.1.0/24 [120/1] via 192.168.3.0, 00:00:24, Serial0/0/0
R 192.168.1.0/24 [120/1] via 172.16.2.1, 00:00:24, Serial0/0/1
R 192.168.9.0/24 [120/1] via 172.16.1.2, 00:00:24, Serial0/0/0
R 192.168.100.0/24 [120/1] via 172.16.1.1, 00:00:24, Serial0/0/0
R 192.168.2.0/24 [120/1] via 172.16.1.2, 00:00:24, Serial0/0/0
Observable Description Max Value
1 correctness of response Option 2 and Option 4 are correct.
1 point for each correct option.
0 points if more options are selected than required. 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
5.3.3 Verifying RIP: debug ip rip
15
Refer to the exhibit. Two remote sites are connected to the HQ router. The router New is configured using RIPv2 and the router BR1 is configured using EIGRP. If HQ is configured with RIPv2 and EIGRP, how will the 172.16.10.0/24 network be added to the routing table of HQ after the network converges?
with two paths of the same cost to the 172.16.10.0/24 network
with one path to the 172.16.10.0/24 network via router BR1
with one path to the 172.16.10.0/24 network via router NEW
with two paths of different cost to the 172.16.10.0/24 network
Observable Description Max Value
1 correctness of response 2 points for Option 2
0 points for any other option 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
3.4.1 Purpose of Administrative Distance
16
Refer to the exhibit. A device is required to complete the connection between router R1 and the WAN. Which two devices can be used for this? (Choose two.)
a CSU/DSU device
a modem
an Ethernet switch
a hub
a bridge
Observable Description Max Value
1 correctness of response Option 1 and Option 2 are correct.
1 point for each correct option.
0 points if more options are selected than required. 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
2.2.5 Examining Router Interfaces
17
Refer to the exhibit. Which two components are required to complete the configuration? (Choose two.)
a crossover cable
a DCE device
a DTE device
a modem
a V.35 cable
Observable Description Max Value
1 correctness of response Option 3 and Option 5 are correct.
1 point for each correct option.
0 points if more options are selected than required. 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
2.2.5 Examining Router Interfaces
18
Refer to the exhibit. Why is the state of the serial0/0/0 interface administratively down?
An IP address has not been configured on the interface.
The WIC was installed into the incorrect slot on the router.
The default encapsulation on the interface has been modified.
The no shutdown command has not been executed on the interface.
Observable Description Max Value
1 correctness of response 2 points for Option 4
0 points for any other option 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
2.2.4 Configuring A Serial Interface
19 A network administrator is setting up a new router with a device name of Admin, an encrypted password of cangetin, and the IP address 192.168.1.22/29 assigned to the first FastEthernet interface. Which command sequence correctly configures this router?
Router(config)# hostname Admin
Admin(config)# enable secret cangetin
Admin(config)# interface fa0/1
Admin(config-if)#ip address 192.168.1.22 255.255.255.248
Router(config)# hostname Admin
Admin(config)# enable password cangetin
Admin(config)# interface fa0/1
Admin(config-if)# ip address 192.168.1.22 255.255.255.248
Router(config)# hostname Admin
Admin(config)# enable secret cangetin
Admin(config)# interface fa0/0
Admin(config-if)# ip address 192.168.1.22 255.255.255.248
Router(config)# hostname Admin
Admin(config)# enable password cangetin
Admin(config)# interface fa0/0
Admin(config-if)# ip address 192.168.1.22 255.255.255.248
Observable Description Max Value
1 correctness of response 2 points for Option 3
0 points for any other option 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
1.2.2 Basic Router Configuration
20
Refer to the exhibit. A network administrator is accessing router R1 from the console port. Once the administrator is connected to the router, which password should the administrator enter at the R1> prompt to access the privileged EXEC mode?
Cisco001
Cisco123
Cisco789
Cisco901
Observable Description Max Value
1 correctness of response 2 points for Option 3
0 points for any other option 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
1.2.2 Basic Router Configuration
21
Refer to the exhibit. A PC is unable to communicate outside of the local network. A network technician views the host configuration and determines that the correct subnet mask but incorrect gateway was entered. What gateway IP address should be configured on the PC if the company policy requires that the IP address on a router interface is the highest in the subnet?
192.168.1.46
192.168.1.54
192.168.1.62
192.168.1.126
Observable Description Max Value
1 correctness of response 2 points for Option 1
0 points for any other option 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
6.2.2 VLSM and IP Addresses
22 An administrator is configuring Router1 so that it can connect to Router2 by using IP. Which protocol can be used by Router1 to determine the IP address of Router2 when they are directly connected and only Layer 2 connectivity exists between them?
ARP
CDP
ICMP
Telnet
Observable Description Max Value
1 correctness of response 2 points for Option 2
0 points for any other option 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
2.3.3 Cisco Discovery Protocol (CDP)
2.3.4 Using CDP for Network Discovery
23
Refer to the exhibit. The output of the show ip route command for three routers on a network is displayed. All routers are operational, pings are not blocked on this network. Which two pings will fail? (Choose two.)
from R1 to 10.3.3.1
from R1 to 172.16.1.1
from R1 to 192.168.3.1
from R2 to 192.168.1.1
from R2 to 192.168.3.1
Observable Description Max Value
1 correctness of response Option 1 and Option 3 are correct.
1 point for each correct option.
0 points if more options are selected than required. 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
2.7.1 Static Routes and Packet Forwarding
24 What is the advantage of configuring a static route with an exit interface instead of a next-hop address?
The router will perform a recursive lookup.
This route will automatically be used as the gateway of last resort.
The exit interface configuration consumes less router processing time.
The exit interface configuration has an administrative distance value of 1.
Observable Description Max Value
1 correctness of response 2 points for Option 3
0 points for any other option 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
2.5.1 Configuring a Static Route with an Exit Interface
25 In which situation would a default static route be recommended?
when connecting an edge router to the Internet
when variable length subnet masking is in effect
when there is more than one valid route for a destination network
when a destination network has a larger mask than any routes in the routing table
Observable Description Max Value
1 correctness of response 2 points for Option 1
0 points for any other option 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
2.6.2 Default Static Route
26
Refer to the exhibit. How was the OSPF default gateway entry for R2 determined?
Default routes are automatically injected by OSPF into all advertisements.
A static default gateway route is defined in the configuration of R2.
The default-information originate command is applied on R1.
The ISP defines the gateway of last resort and automatically passes it to R1 and R2.
The ip default-gateway command is applied on R2.
Observable Description Max Value
1 correctness of response 2 points for Option 3
0 points for any other option 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
11.5.1 Redistributing an OSPF Default Route
27 The command ip route 192.168.2.0 255.255.255.0 172.16.2.2 was entered into the router. After network changes were made, the new next hop for the 192.168.2.0/24 network is 172.16.5.1. What should an administrator do so that the router will use the new next hop to reach the 192.168.2.0 network?
Enter the command clear ip route *.
Lower the administrative distance for the new path to ensure that it is used first.
Negate the original command and enter a new static route with the new next hop.
Nothing. The router will learn of the new next hop and automatically update the route table.
Observable Description Max Value
1 correctness of response 2 points for Option 3
0 points for any other option 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
2.5.2 Modifying Static Routes
28
Refer to the exhibit. The users on the local network 172.16.1.0/24 complain that they are unable to connect to the Internet. What step should be taken to remedy the problem?
A new static route must be configured on R1 with the R3 serial interface as the next hop.
A new default route must be configured on R1 with the R3 serial interface as the next hop.
The default route on R2 should be configured with the R3 serial interface as the next hop.
The default route on R2 must be replaced with a new static route and the next hop should be the R1 FastEthernet interface.
Observable Description Max Value
1 correctness of response 2 points for Option 3
0 points for any other option 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
2.6.2 Default Static Route
29
Refer to the exhibit. Based on the output, what can be concluded about the routes on router R1 ?
Only one static route is configured on R1.
Network 172.16.4.0 is directly connected to R1.
Static routing is configured using the exit interface option.
R1 is configured with three static routes to the three subnets of the 172.16.0.0/24 network.
Observable Description Max Value
1 correctness of response 2 points for Option 3
0 points for any other option 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
2.5.3 Verifying the Static Route Configuration
30
Refer to the exhibit. The entire 192.168.1.0 network has been allocated to address hosts in the diagram. Utilizing VLSM with contiguous address blocks, which set of addresses and prefixes could be used to create an addressing solution with a minimum waste of IP addresses?
Observable Description Max Value
1 correctness of response 2 points for Option 4
0 points for any other option 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
6.2.1 VLSM in Action
6.2.2 VLSM and IP Addresses
31
Refer to the exhibit. Which combination of IP address and subnet mask can be used on the serial interface of Router2 in order to put the interface in the same network as the serial interface of Router1?
IP 172.16.0.18, subnet mask 255.255.255.0
IP 172.16.32.15, subnet mask 255.255.255.240
IP 172.16.0.18, subnet mask 255.255.255.252
IP 172.16.32.18, subnet mask 255.255.255.252
Observable Description Max Value
1 correctness of response 2 points for Option 4
0 points for any other option 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
1.2.1 Implementing Basic Addressing Schemes
32
Refer to the exhibit. The LANs on routers R1, R2, and R3 must be configured to use the 192.168.1.0 network space. If VLSM is used and contiguous blocks of addresses are assigned, which network number and prefix value would be associated with interface Fa0/0 on router R2?
192.168.1.32/28
192.168.1.80/27
192.168.1.96/28
192.168.1.120/29
192.168.1.128/29
Observable Description Max Value
1 correctness of response 2 points for Option 3
0 points for any other option 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
6.2.2 VLSM and IP Addresses
33
Refer to the exhibit. The networks that are connected to R1 have been summarized for R2 as 192.168.136.0/21. Which packet destination address will R2 forward to R1?
192.168.135.1
192.168.142.1
192.168.144.1
192.168.128.1
Observable Description Max Value
1 correctness of response 2 points for Option 2
0 points for any other option 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
6.3.2 Calculating Route Summarization
34
Refer to the exhibit. A new PC was deployed in the Sales network. It was given the host address of 192.168.10.31 with a default gateway of 192.168.10.17. The PC is not communicating with the network properly. What is the cause?
The default gateway is incorrect.
The address is in the wrong subnet.
The host address and default gateway are swapped.
192.168.10.31 is the broadcast address for this subnet.
Observable Description Max Value
1 correctness of response 2 points for Option 4
0 points for any other option 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
6.2.2 VLSM and IP Addresses
35
Refer to the exhibit. The network is running the RIP routing protocol. Network 10.0.0.0 goes down. Which statement is true regarding how the routers in this topology will respond to this event?
Router4 will learn about the failed route 30 seconds later in the next periodic update.
Split horizon will prevent Router4 from fowarding packets to the 10.0.0.0 network until the holddown timer expires.
Router5 immediately flushes the unreachable route from its routing table.
Router5 will send Router4 a triggered update with a metric of 16 for network 10.0.0.0.
Observable Description Max Value
1 correctness of response 2 points for Option 4
0 points for any other option 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
4.4.6 Split Horizon with Poison Reverse or Route Poisoning
36
Refer to the exhibit. The 10.4.0.0 network fails. What mechanism prevents R2 from receiving false update information regarding the 10.4.0.0 network?
split horizon
hold-down timers
route poisoning
triggered updates
Observable Description Max Value
1 correctness of response 2 points for Option 1
0 points for any other option 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
4.4.5 Split Horizon Rule
37 Which feature of RIPv2 enables it to function as a classless routing protocol?
Subnet masks are included in routing updates.
Routing updates are triggered by topology changes.
Next-hop addresses are included in routing updates.
Multicast addresses are used to send routing updates.
Observable Description Max Value
1 correctness of response 2 points for Option 1
0 points for any other option 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
7.2.1 Enabling and Verifying RIPv2
38
Refer to the exhibit. Both routers are using the RIPv2 routing protocol and static routes are undefined. R1 can ping 192.168.2.1 and 10.1.1.2, but is unable to ping 192.168.4.1.
What is the reason for the ping failure?
The serial interface between two routers is down.
R2 is not forwarding the routing updates.
The 192.168.4.0 network is not included in the RIP configuration of R2.
RIPv1 needs to be configured.
Observable Description Max Value
1 correctness of response 2 points for Option 3
0 points for any other option 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
7.2.1 Enabling and Verifying RIPv2
39
Refer to the exhibit. The network is configured with RIPv2. However, network administrators notice that communication cannot be successfully completed from one LAN to another. A network administrator issues the show ip route command on the HQ router. Based on the output, what should be done to correct the problem?
Disable the load balancing feature of RIPv2.
Issue the no auto-summary command for RIPv2.
Replace RIPv2 with EIGRP which supports VLSM.
Make sure that the network statements include the correct subnet mask.
Observable Description Max Value
1 correctness of response 2 points for Option 2
0 points for any other option 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
7.4.2 Common RIPv2 issues
40 A network administrator is using an application that is monitoring packets on the network and sees an EIGRP update packet. What is the purpose of the update packet?
The packet is sent to discover neighbors within the EIGRP network.
The packet is sent to search for network devices within an EIGRP network.
The packet is used to propagate routing information within the EIGRP network.
The packet is used to send an unreachable reply to another router within the EIGRP network.
The packet is used to notify all routers that EIRGP has failed on one of the routers within the EIGRP network.
Observable Description Max Value
1 correctness of response 2 points for Option 3
0 points for any other option 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
9.1.4 RTP and EIGRP Packet Types
41 Which protocol is used by EIGRP to deliver and receive update packets?
FTP
RTP
TCP
TFTP
UDP
Observable Description Max Value
1 correctness of response 2 points for Option 2
0 points for any other option 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
9.1.4 RTP and EIGRP Packet Types
42
Refer to the exhibit. Which two interface variables will determine the metric that is used on EIGRP routes? (Choose two.)
load
delay
reliability
hop count
bandwidth
Observable Description Max Value
1 correctness of response Option 2 and Option 5 are correct.
1 point for each correct option.
0 points if more options are selected than required. 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
9.3.1 EIGRP Composite Metric and the K Values
43
Refer to the exhibit. What information can be determined from the displayed output?
EIGRP packets are waiting to be sent to the neighbors.
The adjacencies between the routers are yet to be established.
The IP address 192.168.10.10 is configured at serial interface S0/0/1 of router R2.
Router R2 is receiving hello packets from a neighbor with the IP address 192.168.10.10 via the R2 S0/0/1 interface.
Observable Description Max Value
1 correctness of response 2 points for Option 4
0 points for any other option 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
9.5.1 The Null0 Summary Route
44
Refer to the exhibit. What will happen if interface Serial0/0/1 goes down on Router1?
The Dijkstra algorithm will calculate the feasible successor.
DUAL will query neighbors for a route to network 192.168.1.0.
Neighbor 172.16.3.2 will be promoted to the feasible successor.
Traffic destined to the 192.168.1.0 network will be dropped immediately due to lack of a feasible successor.
Observable Description Max Value
1 correctness of response 2 points for Option 2
0 points for any other option 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
9.4.5 Topology Table: No Feasible Successor
45
Refer to the exhibit. A network designer is testing a prototype of WAN connections. All of the routers in the exhibit are configured for OSPF routing. The design requires that the path between routers A and D through ISP-A is the primary and the path through ISP-B servers as a backup. The designer notices that router A has two equal-cost paths to the LAN on router D. How can the designer correct this problem?
Issue a clock rate 2000000 interface command on S0/0/1 of router ISP-B.
Change the default OSPF reference bandwidth on router A.
Configure two static routes with administrative distances of 10.
Use the bandwidth command to change the default bandwidth on the link to router B.
Observable Description Max Value
1 correctness of response 2 points for Option 4
0 points for any other option 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
11.3.2 Modifying the Cost of the Link
46
Refer to the exhibit. R1 and R2 are unable to establish an adjacency. What two configuration changes will correct the problem? (Choose two.)
Set a lower priority on R2.
Configure the routers in the same area.
Set a lower cost on R2 compared to R1.
Add a backup designated router to the network.
Match the hello and dead timers on both routers.
Observable Description Max Value
1 correctness of response Option 2 and Option 5 are correct.
1 point for each correct option.
0 points if more options are selected than required. 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
11.2.5 Verifying OSPF
47 All routers in a network are configured in a single OSPF area with the same priority value. No loopback interface has been set on any of the routers. Which secondary value will the routers use to determine the router ID?
The highest MAC address among the active interfaces of the network will be used.
There will be no router ID until a loopback interface is configured.
The highest IP address among the active FastEthernet interfaces that are running OSPF will be used.
The highest IP address among the active interfaces will be used.
Observable Description Max Value
1 correctness of response 2 points for Option 4
0 points for any other option 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
11.2.4 OSPF Router ID
48
Refer to the exhibit. All the routers boot at the same time and enter the OSPF election process. Which router will be elected as the BDR?
router A
router B
router C
router D
both A and D
Observable Description Max Value
1 correctness of response 2 points for Option 3
0 points for any other option 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
11.2.4 OSPF Router ID
11.4.2 DR/BDR Election Process
49
Refer to the exhibit. R1 is configured properly for a single area OSPF, and R2 has been recently installed in the network. Which set of commands is required to configure a single area OSPF for the networks that are connected to R2?
R2(config)# router ospf 1
R2(config-router)# network 192.168.2.0 0.0.0.255 area 0
R2(config-router)# network 10.1.1.0 0.0.0.3 area 0
R2(config)# router ospf 1
R2(config-router)# network 192.168.2.0 0.0.0.255 area 0
R2(config)# router ospf 2
R2(config-router)# network 10.1.1.0 0.0.0.3 area 0
R2(config)# router ospf 1
R2(config-router)# network 192.168.2.0 0.0.0.255 area 0
R2(config-router)# network 10.1.1.0 0.0.0.3 area 1
R2(config)# router ospf 1
R2(config-router)# network 192.168.2.0 0.0.0.255 area 0
R2(config-router)# network 10.0.0.0 0.0.0.3 area 1
Observable Description Max Value
1 correctness of response 2 points for Option 1
0 points for any other option 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
11.2.3 The network Command
50
Refer to the exhibit. A network administrator has configured OSPF using the following command:
network 192.168.1.32 0.0.0.31 area 0
Which router interface will participate in OSPF?
FastEthernet0/0
FastEthernet0/1
Serial0/0/0
Serial0/0/1
Observable Description Max Value
1 correctness of response 2 points for Option 3
0 points for any other option 2
This item references content from the following areas:
CCNA Exploration: Routing Protocols and Concepts
11.2.3 The network Command
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