Cisco CCNA 2 Chapter 5 Cisco Exam Answers 100%

> Two routers, R1 and R2, have established an EIGRP neighbor relationship, but there is still a connectivity problem. Which issue could be causing this problem?.

A process ID mismatch.

Automatic summarization that is disabled on both routers.

An access list that is blocking advertisements from other networks.*

An authentication mismatch.

> 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 the same hello interval between the routers.

Configure EIGRP to send periodic updates.

Configure both routers with the same EIGRP process ID.*

> Two routers, R1 and R2, share a 64 kb/s link. An administrator wants to limit the bandwidth used by EIGRP between these two routers to 48 kb/s. Which command is used on both routers to configure the new bandwidth setting?

Ip bandwidth-percent eigrp 100 48.

Ip bandwidth-percent eigrp 100 75.*

Ip bandwidth-percent eigrp 75 100.

Ip bandwidth-percent eigrp 64 48.

Ip bandwidth-percent eigrp 100 64 .

> What is a characteristic of manual route summarization?.

Requires high bandwidth utilization for the routing updates.

Has to be configured globally on the router.

Reduces total number of routes in routing tables.*

Cannot include supernet routes.

> Refer to the exhibit. A network administrator has issued the shown commands. The EIGRP routing domain has completely converged and a network administrator is planning on configuring EIGRP authentication throughout the complete network. On which two interfaces should EIGRP authentication be configured between R2 and R3?. (Choose two).

Serial 0/0/1 of R3.*

Serial 0/0/1 of R2.

Gig 0/0 of R3.

Serial 0/1/0 of R4.

Serial 0/1/0 of R2.*

> Fill in the blank. Do not use abbreviations.

What is the command that should be issued on a router to verify that EIGRP adjacencies were formed?

#”show ip eigrp neighbor”#

> Refer to the exhibit. All networks are active in the same EIGRP routing domain. When the auto- summary command is issued on R3, which two summary networks will be advertised to the neighbors?. (Choose two).

192.168.1.0/30.

172.16.3.0/24.

172.16.0.0/16.*

192.168.10.0/24.*

192.168.10.0/30.

> In which IOS CLI mode must a network administrator issue the maximum-paths command to configure load balancing in EIGRP?.

Interface configuration mode.

Router configuration mode.*

Global configuration mode.

Privileged mode.

> In which scenario will the use of EIGRP automatic summarization cause inconsistent routing in a network?.

When there is no common subnet that exists between neighboring routers.

When there is no adjacency that is established between neighboring routers.

When the routers in an IPv4 network have mismatching EIGRP AS numbers.

When the routers in an IPv4 network are connected to discontiguous networks with automatic summarization enabled.*

> Refer to the exhibit. Which two routes will be advertised to the router ISP if autosummarization is disabled?. (Choose two).

10.1.2.0/24.*

10.1.4.0/28.

10.1.4.0/30.*

10.1.4.0/24.

10.1.0.0/16.

> Which three statements are advantages of using automatic summarization?. (Choose three.)

It improves reachability in discontiguous networks.

It ensures that traffic for multiple subnets uses one path through the internetwork.*

It maximizes the number of routes in the routing table.

It decreases the number of entries in the routing table.*

It increases the size of routing updates.

It reduces the frequency of routing updates.*

> Launch PT Hide and Save PT

Open the PT Activity. Perform the tasks in the activity instructions and then answer the question. R1 and R2 could not establish an EIGRP adjacency. What is the problem?.

EIGRP is down on R2.

R1 Fa0/0 link local address is wrong.

EIGRP is down on R1.*

R1 Fa0/0 is not configured to send hello packets.

R1 Fa0/0 and R2 Fa0/0 are on different networks.

> Refer to the exhibit. A network administrator has configured EIGRP authentication between routers R1 and R2. After the routing tables are reviewed, it is noted that neither router is receiving EIGRP updates. What is a possible cause for this failure?.

The same autonomous system numbers must be used in the interface configurations of each router.*

The key string should be used in interface mode instead of the key chain.

The same number of key strings must be used on each router.

The same key chain name must be used on each router.

The authentication configuration is correct, issue the show ip eigrp neighbors command to troubleshoot the issue.

> Refer to the exhibit. Which statement accurately reflects the configuration of routing on the HQ

router?.

The IP address assigned to the GigabitEthernet0/0 interface is 172.16.2.0 255.255.255.0.

A static default route was configured on this router.*

A static default route was learned via EIGRP routing updates.

The static default route should be redistributed using the default-information originate command.

> Refer to the exhibit. Remote users are experiencing connectivity problems when attempting to reach hosts in the 172.21.100.0 /24 network. Using the output in the exhibit, what is the most likely cause of the connectivity problem?.

The GigabitEthernet interfaces are not limiting the flow of EIGRP message information and are being flooded with EIGRP traffic.

The passive-interface command is preventing neighbor relationships on interface GigabitEthernet 0/0.

The GigabitEthernet 0/1 interface is not participating in the EIGRP process.*

The hello timer has been modified on interface GigabitEthernet 0/1 of R3 and not on the neighbor, causing a neighbor adjacency not to form.

> Refer to the exhibit. Considering that R2, R3, and R4 are correctly configured, why did R1 not establish an adjacency with R2, R3, and R4?.

Because the IPv4 address on Fa0/0 interface of R1 is incorrect.

Because the automatic summarization is enabled on R1.

Because there is no network command for the network 192.168.1.0/24 on R1.

Because the Fa0/0 interface of R1 is declared as passive for EIGRP.*

> Which address best summarizes the IPv6 addresses 2001:DB8:ACAD::/48, 2001:DB8:9001::/48, and 2001:DB8:8752::/49?.

2001:DB8:8000::/47.

2001:DB8:8000::/36.

2001:DB8:8000::/34.*

2001:DB8:8000::/48.

> Refer to the exhibit. Which statement is supported by the output?.

A default route is being learned through an external process.*

The route to 192.168.1.1 represents the configuration of a loopback interface.

A static default route has been manually configured on this router.

Summarization of routes has been manually configured.

> Fill in the blank. Do not use abbreviations.

The #”passive-interface”# command causes an EIGRP router to stop sending hello packets through an interface.

> Refer to the exhibit. Router R3 is receiving multiple routes through the EIGRP routing protocol. Which statement is true about the implementation of summarization in this network?.

Automatic summarization is disabled on a per-interface basis.

Automatic summarization is disabled on R3.*

Automatic summarization has been enabled only for the 172.21.100.0/24 network.

Automatic summarization is enabled on neighboring routers.

> Refer to the exhibit. After the configuration shown is applied on router R1, the exhibited status message is displayed. Router R1 is unable to form a neighbor relationship with R2 on the serial

0/1/0 interface. What is the most likely cause of this problem?.

The passive-interface command should have been issued on serial 0/1/0.

The networks that are configured on serial 0/0/0 and serial 0/1/0 of router R1 are overlapping.

The IPv4 address configured on the neighbor that is connected to R1 serial 0/1/0 is incorrect.*

The network statement used for EIGRP 55 does not enable EIGRP on interface serial 0/1/0.

The hello interval has been altered on serial 0/1/0 and is preventing a neighbor relationship from forming.

> Refer to the exhibit. A network administrator has attempted to implement a default route from R1 to the ISP and propagate the default route to EIGRP neighbors. Remote connectivity from the EIGRP neighbor routers to the ISP connected to R1 is failing. Based on the output from the exhibit, what is the most likely cause of the problem?.