Online Access Free 642-902 Exam Questions

Refer to the exhibit.

Given the partial configuration in the exhibit, which IPv6 statement is true?

• A.The configuration is an example of a 4to6 tunnel.
• B.The configuration is an example of a 6to4 tunnel.
• C.The configuration is an example of an encrypted IPv6 VPN tunnel.
• D.The configuration is an example of a one to one IPv6 tunnel.

You have completed an OSPF implementation, and you are verifying OSPF operation. During this verification, you notice that the OSPF route of 172.16.10.0 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
172.16.20.2 is the source of the 172.16.10.0 route. Using the show ip ospf database router
172.16.20.1 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?

• A.Issues with mistuned OSPF timers.
• B.OSPF LSA pacing issues between some of the routers.
• C.Two routers have the same OSPF router ID.
• D.OSPF neighbor adjacency problems between some of the routers.
• E.OSPF authentication errors between some of the routers.

What is a key benefit of using a GRE tunnel to provide connectivity between branch offices and headquarters?

• A.authentication, integrity checking, and confidentiality
• B.less overhead
• C.granular QoS support
• D.open standard
• E.scalability
• F.dynamic routing over the tunnel

Identify three characteristics of EIGRP feasible successors? (Choose three.)

• A.If the successor becomes unavailable, then the feasible successor can be used immediately without recalculating for a lost route.
• B.The feasible successor can be found in the routing table.
• C.Traffic will be load balanced between feasible successors with the same advertised distance.
• D.A feasible successor is selected by comparing the advertised distance of a non-successor route to the feasible distance of the best route.
• E.If the advertised distance of the non-successor route is less than the feasible distance of best route, then that route is identified as a feasible successor.

Which command displays the IBGP and EBGP neighbors that are configured?

• A.show ip bgp
• B.show ip bgp summary
• C.show ip bgp peers
• D.show ip bgp paths