Cisco CCNP Service Provider 300-510 Questions & Answers

• Question 91:

  Refer to the exhibit.

  

  An administrator is troubleshooting Internet access issues on a customer's network. After applying this ISIS configuration to R1, the administrator notices that it fails to redistribute the default route into IS-IS. After checking the connectivity between the ISIS router and the ISP router the engineer confirmed there is Layer 3 connectivity between them. Which action should be taken to correct the problem?

  A. Configure R1 as a Layer 1 router

  B. Add the default-information originate command to the configuration

  C. onfigure the default route under any routing protocol other than IS-IS

  D. Associate the default route with a VRF

  Correct Answer: B

• Question 92:

  

  Refer to the exhibit. Routers RA and RB are IS-IS peers configured for NSF, but router RC is an IS-IS peer without NSF capability. If RA undergoes processor switchover, what is the effect on the network environment?

  A. If RC is operating without the Cisco configuration option, only 2 routers tear down their peering relationships and re-establish peering

  B. All peer relationships remain up, but the link-state database is rebuild on each device

  C. If RC is operating without the Cisco configuration option, all three routers tear down their peering relationships and re-establish peering

  D. All peer relationships remain up and the link-state database is unchanged

  Correct Answer: B

• Question 93:

  Refer to the exhibit.

  

  A network engineer applied configuration on R1 to summarize all ISIS routes, but R2 is still receiving specific routes from R1. The engineer has confirmed that both routers are configured with the correct summarization configuration, but R1 is not sending the correct summary routes. Which configuration must be applied to router R1 to summarize routes within Level 1?

  A. R1(config-router)#no summary-address 1.0.0.0 255.0.0.0 level-1

  B. R1(config-router)#summary-address 1.0.0.0 255.0.0.0 level-2

  C. R1(config-router)#summary-address 1.0.0.0 255.0.0.0 level-1-2

  D. R1(config-router)#summary-address 1.0.0.0 255.0.0.0 level-1

  Correct Answer: D

• Question 94:

  Refer to the exhibits.

  

  A network operator is troubleshooting packet loss seen from the R1 loopback interface to the R2 loopback interface over the core network. The operator is attempting to identify the next leg in the path from PE1. Which interface and label path should the operator investigate next?

  A. PE1 - Gi0/0/0/3 - forwarding label 24002

  B. PE1 - Gi0/0/0/2 - forwarding label 24002

  C. PE1 - Gi0/0/0/3 - forwarding label 24001

  D. PE1 - Gi0/0/0/2 - forwarding label 24001

  Correct Answer: C

• Question 95:

  What are three requirements for a static IPv6-in-IPv4 tunnel? (Choose three.)

  A. A static IPv6 address must be configured.

  B. A dynamic IPv6 address must be configured.

  C. Cisco Express Forwarding must be enabled.

  D. Each tunnel endpoint must support IPv4 and IPv6.

  E. A static IPv4 address must be configured.

  F. A dynamic IPv4 address must be configured.

  Correct Answer: ADF

• Question 96:

  Refer to the exhibit.

  

  A network operator is troubleshooting TE tunnels and discovers that the soft preemption is not working as desired. Where should the soft preemption be applied to solve the issue?

  A. on the tail-end device for tunnel-te1 192.168.0.7

  B. under the tunnel-te1 interface on PE1

  C. explicitly for tunnel-te 1 under the Cisco MPLS TE configuration mode after the timeout setting

  D. Under the interface Loopback0 necessary for this deployment type.

  Correct Answer: B

• Question 97:

  What are two differences between OSPF and IS-IS? (Choose two.)

  A. OSPF is a link-state routing protocol, and IS-IS is a distance-vector routing protocol.

  B. OSPF uses a router ID to identify a router, and IS-IS uses a system ID.

  C. OSPF elects a DR and a BDR, and IS-IS elects a DIS.

  D. Unlike OSPF. IS-IS supports virtual links.

  E. Unlike IS-IS routers, an OSPF router belongs to only one area in addition to the backbone area.

  Correct Answer: BC

• Question 98:

  An engineer is working to implement segment routing protocol on the customer's core network. Which step should the engineer take before the segment routing is enabled and is running with BGP?

  A. Segment routing must be configured with ISIS.

  B. Segment routing must be configured with EIGRP.

  C. Explicit-null must be configured for all neighbors.

  D. MPLS must be configured.

  Correct Answer: D

• Question 99:

  Refer to the exhibit.

  

  A network operator is working to deploy a Unified BGP design and allow it to be available only in selected markets and services in the future. The label allocation is not functioning as desired. Which action will fix the issue?

  A. Remove the allocate-labels command.

  B. Reconfigure the route-policy ALL_LABELS to match all after the drop.

  C. Reconfigure the route-policy ALL_LABELS to pass.

  D. Remove the route policy and only configure "allocate-label".

  Correct Answer: C

• Question 100:

  Refer to the exhibit.

  

  While configuring router 2 with all the default values, a network engineer cannot see any route received in router 1. How should the engineer solve the issue?

  A. Set up a priority different than 0 in the interface.

  B. Modify the router ID to be the interface IP on the serial.

  C. Modify the IP address or mask of the interface to a valid one.

  D. Set the network type in S1/0 to point-to-point.

  Correct Answer: C