Cisco Implementing cisco ip routing - 642-902 시험문제 [2026]

문제1
Refer to the exhibit. OSPF is running throughout the network. You want to minimize the propagation of LSAs into and out of Area 1. Which OSPF feature would best achieve this goal?

A. totally NSSA

B. NSSA

C. stub

D. totally stubby

정답: A

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문제2
Which three statements about OSPF areas are true? (Choose three.)

A. All routers within an area have the exact link-state database.

B. Areas are logical definitions specific to any given router.

C. The calculation of the Dijkstra algorithm on a router is limited to changes within an area.

D. Areas introduce a boundary on the link-state updates.

E. The area designated router will always have a priority of 0.

정답: A,C,D

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문제3
Which statement is correct based upon the following output from the show command on RT1?

Choose one from below:

A. OSPFv3 establishes neighbor adjacencies by using IPv4 addresses.

B. OSPFv3 establishes neighbor adjacencies by using global IPv6 addresses.

C. RT1 owns a subnet mask of 64 bits.

D. OSPFv3 establishes neighbor adjacencies by using Link-local addresses.

정답: D

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문제4
After implementing EIGRP on your network, you issue the show ip eigrp traffic command on router C.
The following output is shown:
RouterC#show ip eigrp traffic
IF-EIGRP Traffic Statistics for process 1 Hellos sent/received: 481/444 Updates sent/received: 41/32 Queries sent/received: 5/1 Replies sent/received: 1/4 Acks sent/received: 21/25 Input queue high water mark 2, 0 drops SIA-Queries sent/received: 0/0 SIA-Replies sent/received: 0/0 Approximately 25 minutes later, you issue the same command again. The following output is
shown:
RouterC#show ip eigrp traffic
IP-EIGRP Traffic Statistics for process 1 Hellos sent/received: 1057/1020 Updates sent/received: 41/32 Queries sent/received: 5/1 Replies sent/received: 1/4 Acks sent/received: 21/25 Input queue high water mark 2, 0 drops SIA-Queries sent/received: 0/0 SIA-Replies sent/received: 0/0 Approximately 25 minutes later, you issue the same command a third time. The following output is
shown:
RouterC#show ip eigrp traffic
IP-EIGRP Traffic Statistics for process 1 Hellos sent/received: 1754/1717 Updates sent/received: 41/32 Queries sent/received: 5/1 Replies sent/received: 1/4 Acks sent/received: 21/25 Input queue high water mark 2, 0 drops SIA-Queries sent/received: 0/0 SIA-Replies sent/received: 0/0
What can you conclude about this network?

A. There is a flapping link or interface, and router C knows an alternate path to the network.

B. The network has been stable for at least the last 45 minutes.

C. There is a flapping link or interface, and router A does not know an alternate path to the network.

D. EIGRP is not working correctly on router C.

E. There is not enough information to make a determination.

정답: B

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문제5
Which three are advantages to creating multiple areas in OSPF? (Choose three.)

A. smaller routing tables

B. reduced LSU overhead

C. less frequent SPF calculations

D. fewer hello packets

E. fewer adjacencies needed

정답: A,B,C

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문제6
Refer to the exhibit.

On all routers in the network, EIGRP has been configured for load balancing across the three links. However, traffic destined for Network B from R1 is only load balanced over paths R1-R2-R5 and R1-R3-R5. What is the cause of the problem?

A. EIGRP will not select more than two links for unequal cost path load balancing.

B. Because the path has a different link type, EIGRP will not select path R1-R4-R5 for load balancing.

C. Because Router R4 is not a feasible successor, EIGRP will not select path R1-R4-R5 for load balancing.

D. EIGRP will not select path R1-R4-R5 for load balancing unless the value of the variance parameter is increased.

정답: C

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문제7
Based on the P1R3 show ip bgp output, which statement is true?

A. The best path to reach the 192.168.11.0 prefix is via 10.200.200.11.

B. The 192.168.11.0 and 192.168.12.0 prefixes were learned via EBGP from the 10.200.200.11 and 10.200.200.12 EBGP neighbors.

C. The best path to reach the 192.168.11.0 prefix is via both 10.200.200.11 and 10.200.200.12; BGP will automatically load balance between the two.

D. The best path to reach the 192.168.11.0 prefix is via 10.200.200.12.

정답: D

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문제8
Given the accompanying output, which additional command is needed to redistribute IGRP into EIGRP?
Router eigrp 123
Network 10.10.10.0
No auto-summary
!
Router igrp 123
Network 172.16.0.0
Network 172.17.0.0

A. Under the router eigrp mode add redistribute igrp 123

B. Under the router eigrp mode add redistribute igrp 123 subnets

C. None, EIGRP and IGRP are automatically redistributed in this instance.

D. Under the router igrp mode add redistribute eigrp 123

정답: C

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문제9
Which IPv6 address correctly compresses the IPv6 unicast address 2001:0:0:0:0DB8:0:0:417A?

A. 2001::DB8:0:0:417A

B. 2001:0DB8:417A

C. 2001::0DB8::417A

D. 2001:0DB8:0:0:417A

E. 2001:::0DB8::417A

F. 2001:::0DB8:0:0:417A

정답: A

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문제10
DRAG DROP

정답:

Explanation:

문제11

The company and the company network have both been growing rapidly. Multiple adds, moves and changes have been applied to the network. Your boss has asked you to troubleshoot a recent OSPF synchronization problem that has arisen. There have been synchronization problems at separate locations in the OSPF area 0. There have been reported link failures during the rapid growth of the company network. You are required to resolve the OSPF problem. OSPF must be able to converge when the network changes.
Refer to the information above to answer the following question
Examine the following excerpt from the "show ip ospf" command on D1:
Area BACKBONE (0) Number of interfaces in the this area is 1 Area has no authentication SPF algorithm last executed 00:00:31.280 ago SPF algorithm executed 5 times Area ranges are Number of LSA 13. Checksum Sum 0x16F0FD Number of opaque link LSA 0. Checksum Sum 0x000000 Number of DCbitless LSA 0 Number of indication LSA 0 Number of DoNotAge LSA 0 Flood list length 0 Area 16 Number of interfaces in this area is 2 Area has message digest authentication SPF algorithm last executed 00:00:34.928 ago SPF algorithm executed 7 times Area ranges are Number of LSA 5. Checksum Sum 0x02FCD3 Number of opaque link LSA 0. Checksum Sum 0x000000 Number of DCbitless LSA 0 Number of indication LSA 0 Number of DoNotAge LSA 0 Flood list length 0
Based on the information shown above, what is most likely causing the different missing routes throughout the network?

A. None of the above

B. Area 0 and Area 32 have been configured with mismatched LSA numbers.

C. Area 16 has been configured as a stub network

D. Area 16 is configured with authentication.

E. Area 16 has been configured to use the same interfaces as Area 0.

F. Area 0 is discontiguous.

G. Area 16 has been configured as a total stub network

정답: F

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문제12
Above is the output from show ip bgp neighbors command.

What is line 21 stating about the BGP connection?

A. the number of total TCP connections that the router has

B. the number of neighbors that the router has

C. the number of times the router has established a TCP connection

D. the number of consecutive TCP connections to the specified remote neighbor

정답: C

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