642-883 exam

When configuring IPv4 and IPv6 IS-IS routing on Cisco IOS XR routers, which three statements are correct? (Choose three.)A . By default, a single SPF is used for both IPv4 and IPv6, so the IPv4 and IPv6 topology should be the same.B . By default, the IS-IS router type is...

Refer to the Cisco IOS show command output shown in the exhibit. Which of the following statements is correct?A . The best path to 10.2.10.1/32 was chosen because of the AS path.B . The best path to 10.2.10.1/32 was chosen because of the weight.C . The best path to 10.2.10.1/32...

When configuring IPv4 and IPv6 IS-IS routing on Cisco IOS XR routers, which three statements are correct? (Choose three.)A . By default, a single SPF is used for both IPv4 and IPv6, so the IPv4 and IPv6 topology should be the same.B . By default, the IS-IS router type is...

There are how many IS-IS area(s) defined in this network Scenario? A . 1B . 2C . 3D . 4View AnswerAnswer: C

Which three BGP configuration groupings are supported on Cisco IOS XR Software? (Choose three.)A . peer-groupB . af-groupC . bgp-groupD . session-groupE . neighbor-groupF . as-groupView AnswerAnswer: B,D,E

In comparing IS-IS with OSPF, a Level-1-2 IS-IS router is similar to which kind of OSPF router?A . ASBR on a normal OSPF areaB . ASBR on NSSAC . ABR on totally stubby OSPF areaD . ABR on stubby OSPF areaE . ABR on a normal OSPF areaView AnswerAnswer: C

When troubleshooting OSPF neighbor errors, which three verification steps should be considered.? (Choose three.)A . Verify if neighboring OSPF interfaces are configured in the same area.B . Verify if neighboring OSPF interfaces are configured with the same OSPF process ID . Verify if neighboring OSPF interfaces are configured with the...

Which two statements regarding OSPFv2 or OSPFv3 authentication are correct? (Choose two.)A . OSPFv2 supports MD5 authentication.B . OSPFv2 supports MD5 or SHA authentication.C . OSPFv2 relies on the native security stack that uses IPsec.D . OSPFv3 supports MD5 authentication.E . OSPFv3 supports MD5 or SHA authentication.F . OSPFv3 relies...

Refer to the exhibit. Which two configuration options can be used to optimize the IS-IS network scenario? (Choose two.)A . Change the R1 and R2 IS type to Level 2.B . Change the R1 and R2 IS type to Level 1.C . Change the gi0/0 interface IS-IS circuit type on...

What are two consequences of having constant link flaps, resulting in the OSPF neighbor adjacencies going up and down repeatedly? (Choose two.)A . routes getting into the "Stuck In Active" stateB . constant flooding of LSAsC . OSPF route dampening to occurD . many SPF recalculationsE . routing loops may...