642-902 Q&A – Implement a multi-area OSPF Network (46-50)

Section 2 – Implement a multi-area OSPF Network, given a network design and a set of requirements

Refer to the exhibit. ROUTE.com is planning to implement a secure OSPF network to support traffic between clients on the network and the file server on the 172.16.20./24 network. You have been asked to review the implementation and verification plans for this OSPF project.
Which statement about the plan is true? Select the best response.

A. It is complete as written.
B. It should include a task that verifies that the interarea routes are using the proper MED.
C. It should include a task that verifies that load sharing is active on R1 and R4.
D. It should include a task that verifies that all redundant links will become active when the primary links are shut down.
Answer: D

Which command enables OSPF for IPv6?
A. router ospf ipv6 process-id
B. ipv6 ospf process-id
C. router ospf process-id
D. ipv6 router ospf process-id
Answer: D
To enable Open Shortest Path First (OSPF) for IPv6 router configuration mode, use the ipv6 router ospf command in global configuration mode.
ipv6 router ospf process-id

Refer to the exhibit. What is the effect of the OSPF configuration on router B?
Select the best response.

A. All interfaces will be in area 0.
B. The router will be an ABR with s1/0 in area 0 and f0/0 and 0/1 in area 1.
C. The router will be an ABR with s1/0 in area 0 and f0/0 and 0/1 in area 2.
D. The router will be an ABR with s1/0 in area 0, f0/0 in area 1, and f0/1 in area 2.
Answer: D

You have completed an OSPF implementation, and you are verifying OSPF operation. During this verification, you notice that the OSPF route of is repeatedly appearing and disappearing from the routing table. Further investigation finds that the OSPF CPU utilization is very high and the routers are constantly performing SPF calculations. You determine that is the source of the route. Using the show ip ospf database router command, you notice that when this show command is performed repeatedly, the contents of the LSA change every few seconds.
What could be the cause of this problem? Select the best response.
A. OSPF authentication errors between some of the routers.
B. Two routers have the same OSPF router ID.
C. Issues with mistuned OSPF timers.
D. OSPF LSA pacing issues between some of the routers.
E. OSPF neighbor adjacency problems between some of the routers.
Answer: B

Refer to the exhibit. You are the network administrator responsible for the NProuter, the router, and the router.
What can you determine about the OSPF operations from the debug output? Select the best response.

A. The NProuter has two OSPF neighbors in the "Full" adjacency state.
B. The NProuter serial0/0 interface has the OSPF dead timer set to 10 seconds.
C. The NProuter serial0/0 interface has been configured with an OSPF network type of "point- to-point".
D. The and routers are not using the default OSPF dead and hello timers setting.
E. The "Mismatched" error is caused by the expiration of the OSPF timers.
Answer: B