Cisco CCNP 642-902 Exam 31


When learning a new route, if a LSA received is not found in the topological database, what will an internal OSPF router do?

A. The sequence numbers are checked, and if the LSA is valid it is entered into the topology database.
B. The LSA is placed in the topological database and an acknowledgement is sent to the transmitting router.
C. The LSA is dropped and a message is sent to the transmitting router.
D. The LSA is flooded immediately out of all the OSPF interfaces, except the interface from which the LSA was received.

Correct Answer: D

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

A. OSPFv3 establishes neighbor adjacencies by using Link-local addresses.
B. OSPFv3 establishes neighbor adjacencies by using IPv4 addresses.
C. OSPFv3 establishes neighbor adjacencies by using global IPv6 addresses.
D. RT1 owns a subnet mask of 64 bits.

Correct Answer: A

Refer to the exhibit.

OSPF is configured on all routers in the network. Area 5 is configured as an NSSA area. The RIPv2 routes are redistributed into the OSPF domain on router R5. What two types of LSAs will be originated by router R5? (Choose two.)

A. type 1 Router LSA
B. type 2 Network LSA
C. type 3 Network Summary LSA
D. type 4 ASBR Summary LSA
E. type 5 AS External LSA
F. type 7 NSSA External LSA

Correct Answer: AF

A network administrator has enabled OSPF across an NBMA network and has issued the command ip ospf network nonbroadcast. Given those facts, which two statements are true? (Choose two.)

A. DR and BDR elections will occur.
B. DR and BDR elections will not occur.
C. All routers must be configured in a fully meshed topology with all other routers.
D. The neighbor command is required to build adjacencies.
E. Interfaces will automatically detect and build adjacencies with neighbor routers.

Correct Answer: AD

Refer to the topology diagram.

R3 is redistributing the EIGRP routes into OSPF. What will the EIGRP routes appear as in the routing table of R1?

A. O
C. O E2
D. D

Correct Answer: C
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