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QUESTION NO:20

A network administrator would like to configure an EIGRP router as a stub router that advertises directly connected and summary routes only. What command must the administrator issue to accomplish this?

A. eigrp stub

B. eigrp stub connected

C. eigrp stub summary

D. eigrp stub connected static

E. eigrp stub receive-only

Correct Answer: A Explanation

Explanation/Reference:

QUESTION NO:28

Refer to the exhibit. It is desired to set up a BGP neighbor relationship between routers R1 and R4. BGP packets between them could travel through R2 or R3. What is the simplest configuration that will allow for failover? Select the best response.

A. Configure BGP neighbor relationships between all interfaces on R1 and R4.

B. Install a direct connection between R1 and R4.

C. Configure loopback interfaces on R1 and R4 to provide the update source address for BGP packets.

D. Configure only one neighbor relationship between R1’s 192.168.1.2 interface and R4’s

172.16.10.2 interface.

Correct Answer: C Explanation

Explanation/Reference:

Assume R4 only uses this configuration:

R4(config)#router bgp 65000 R4(config-router)#neighbor 192.168.1.2 remote-as 65000 Then if R1 sends BGP packets to R4 via R3, the source IP address of the packets is

192.168.2.2. But R4 does not recognize this IP address because 192.168.2.2 is not configured in the

QUESTION NO:5

Refer to the exhibit. EIGRP is configured on all routers in the network. On the basis of the output provided, which statement is true?

A. Because the key chain names do not match, router R1 will not be able to ping routers R2 and R3 .

B. Because the key strings do not match, router R1 will not be able to ping routers R2 and R3.

C. Because authentication is misconfigured on interfaces Gi0/0 and Gi0/1 on router R2, router R1 will not be able to ping routers R2 and R3.

D. Because autosummarization needs to be turned on for EIGRP on all routers, router R1 will not be able to ping routers R2 and R3.

E. Router R1 will be able to ping routers R2 and R3.

Correct Answer: E Explanation

Explanation/Reference:

QUESTION NO:31

Refer to the exhibit. OSPF is configured on all routers in the network. On the basis of the show ip ospf neighbor output, what prevents R1 from establishing a full adjacency with R2?

A. Router R1 will only establish full adjacency with the DR and BDR on broadcast multiaccess networks.

B. Router R2 has been elected as a DR for the broadcast multiaccess network in OSPF area

C. Routers R1 and R2 are configured as stub routers for OSPF area 1 and OSPF area 2.

D. Router R1 and R2 are configured for a virtual link between OSPF area 1 and OSPF area

2.

E. The Hello parameters on routers R1 and R2 do not match.

Correct Answer: A Explanation

Explanation/Reference:

From the output, we learn that R4 is the DR and R3 is the BDR so other routers will only establish full adjacency with these routers. All other routers have the two-way adjacency established.

QUESTION NO:49

Which condition must be satisfied before an EIGRP neighbor can be considered a feasible successor? Select the best response.

A. The neighbor’s advertised distance must be less than or equal to the feasible distance of the current successor.

B. The neighbor’s advertised distance must be less than the feasible distance of the current successor.

C. The neighbor’s advertised distance must be greater than the feasible distance of the current successor.

D. The neighbor’s advertised distance must be equal to the feasible distance of the current successor.

E. The neighbor’s advertised distance must be greater than or equal to the feasible distance of the current successor.

Correct Answer: B Explanation

Explanation/Reference:

QUESTION NO:15

What is the purpose of the eigrp stub configuration command?

A. to increase scalability by limiting the EIGRP query range

B. to reduce the size of the routing table by blocking the D EX (External EIGRP) routes into the EIGRP stub router

C. to reduce the convergence time by enabling the EIGRP stub router to propagate the EIGRP queries from the EIGRP hub router

D. to reduce the convergence time by enabling the EIGRP stub router to also perform query requests to the EIGRP hub router

Correct Answer: A Explanation

Explanation/Reference:

The EIGRP Stub Routing feature improves network stability, reduce resources utilization, and simplifies stub router configuration. Stub routing is commonly used in a hub and spoke network topology. You need to configure the distribution (hub) and remote (spoke) routers to use EIGRP, and only the remote router as a stub. Only specified routes are propagated from the stub router. The router responds to queries for summaries, connected routes, redistributed static routes, external routes, and internal routes with the message “inaccessible”. A stub router will send a special peer information packet to all neighboring routers to report its status as a stub router. Any neighbor that receives a packet informing it of the stub status will not query the stub router for any routes, and a router that has a stub peer will not query that peer. The stub router will depend on the distribution router to send the proper updates to all peers.

QUESTION NO:54

Refer to the exhibit. Why is the 140.140.0.0 network not used as the gateway of last resort even though it is configured first? Select the best response.

R3#show run | include default-

ip default-network 140.140.0.0

ip default-network 130.130.0.0

R3#show ip route | begin Gateway

Gateway of last resort is 0.0.0.0 to network 130.130.0.0

116.0.0.0/8 is variably subnetted, 5 subnets, 3 masks

C 116.16.37.0/30 is directly connected, Serial1/0.2

C 116.16.32.0/30 is directly connected, Serial2/0.2

C 116.16.34.0/28 is directly connected, Serial1/0.1

C 116.16.35.0/28 is directly connected, Serial2/0.1

S 116.0.0.0/8 [1/0] via 116.16.34.0

*

140.140.0.0/32 is subnetted, 3 subnets

O 140.140.1.1 [110/65] via 116.16.34.4, 00:14:54, Serial1/0.1

O 140.140.3.1 [110/65] via 116.16.34.4, 00:14:54, Serial1/0.1

O 140.140.2.1 [110/65] via 116.16.34.4, 00:14:54, Serial1/0.1

*

130.130.0.0/16 is variably subnetted, 4 subnets, 2 masks

D* 130.130.0.0/16 is a summary, 00:30:04, Null0

C 130.130.1.0/24 is directly connected, Ethernet0/0

C 130.130.2.0/24 is directly connected, Ethernet0/1

C 130.130.3.0/24 is directly connected, Ethernet1/0

D 150.150.0.0/16 [90/679936] via 116.16.35.5, 00:02:58,

Serial2/0.1

A. The last default-network statement will always be preferred.

B. A route to the 140.140.0.0 network does not exist in the routing table.

C. Default-network selection will always prefer the statement with the lowest IP address.

D. A router will load balance across multiple default-networks; repeatedly issuing the show ip route command would show the gateway of last resort changing between the two networks.

Correct Answer: B Explanation

Explanation/Reference:

QUESTION NO:10

Refer to the exhibit. Given the exhibited router output, which command sequence can be added to R1 to generate a default route into the OSPF domain?

A. default-router

B. ip default-network

C. default-information originate always

D. ip default-gateway

Correct Answer: C Explanation

Explanation/Reference:

QUESTION NO:7

Which two statements are true about EIGRP manual summarization? (Choose two.)

A. Manual summarization is configured on a per interface basis.

B. Manual summaries can be configured with the classful mask only.

C. When manual summarization is configured, autosummarization is automatically disabled by default.

D. The summary address is assigned an administrative distance of 10 by default.

E. The summary address is entered into the routing table and is shown to be sourced from the Null0 interface.

Correct Answer: AE Explanation

Explanation/Reference:

QUESTION NO:29

Which statement is true about OSPF Network LSAs? Select the best response.

A. They are originated by every router in the OPSF network. They include all routers on the link, interfaces, the cost of the link, and any known neighbor on the link.

B. They are originated by the DR on every multi-access network. They include all attached routers including the DR itself.

C. They are originated by Area Border Routers and are sent into a single area to advertise destinations outside that area.

D. They are originated by Area Border Router and are sent into a single area to advertise an Autonomous System Border Router.

Correct Answer: B Explanation

Explanation/Reference:

Popular LSA Types are listed below:

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