Cisco CCNP Service Provider 300-510 Questions & Answers

• Question 161:

  Refer to the exhibit.

  

  A network operator wants to expand the segment routing global block in upcoming maintenance. The operator must ensure that the changes to the segment routing global block have no adverse impacts on the prefix-sid associated with the loopback0 interface used within the OSPF domain.

  Which command can the operator use to enforce R2 to have a strict prefix-sid assignment to loopback0?

  

  A. Option A

  B. Option B

  C. Option C

  D. Option D

  Correct Answer: C

• Question 162:

  Refer to the exhibit.

  

  Router 1 is a core ABR in a Cisco Unified MPLS environment. All of the router 1 BGP peers are established, but traffic between customers is failing. Which BGP configuration must be added to the configuration?

  A. It must be configured for graceful restart

  B. It must be configured with a route reflector

  C. It must be configured with send labels

  D. It must be configured with PIC edge

  Correct Answer: C

• Question 163:

  Refer to the exhibit.

  

  Router 1 is connected to router 2 on interface TenGigE0/1.

  Which interface provides the alternate path to 172.16.200.9/32 when the link between router 1 and router 2 goes down?

  A. TenGigE0/1 interface provides the alternate path

  B. A backup path must be statically installed

  C. TenGigE0/2 interface provides the alternate path

  D. A primary path must be manually installed

  Correct Answer: C

• Question 164:

  Refer to the exhibit.

  

  XR1 and XR2 are sending the prefix 10.11.11.0/24 to XR3. A configured policy on XR1 is incorrectly prepending AS path 11 11 12 12 onto this prefix. A network operator wants to add a policy onto XR3 that will not allow the falsely prepending prefix from being installed.

  Which policy configuration applied to the XR3 neighbor configuration for XR1 can accomplish this requirement without impact to other or future received routes?

  

  A. Option A

  B. Option B

  C. Option C

  D. Option D

  Correct Answer: D

  Reference: https://www.cisco.com/c/en/us/td/docs/routers/crs/software/crs_r4-1/routing/command/reference/b_routing_cr41crs/b_routing_cr41crs_chapter_01000.html#wp3850885229

• Question 165:

  Refer to the exhibit. Which LSA type is indicated by this router output?

  

  A. type 3 LSA

  B. type 4 LSA

  C. type 1 LSA

  D. type 2 LSA

  Correct Answer: C

• Question 166:

  Which statement about enabling segment routing for IGPs is true?

  A. Segment routing must first be enabled under then routing process and then globally

  B. Segment routing must first be enabled globally and then under the routing process

  C. Segment routing can be enabled only under the routing process

  D. Segment routing can be enabled only globally

  Correct Answer: B

  Reference: https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/seg_routing/configuration/xe-16-6/segrt-xe-16-6-book/sr-ospfv2-node-sid.html

• Question 167:

  Which task is performed when troubleshooting LDP?

  A. Execute the ping utility to generate information about the MAC addresses used along the path

  B. Verify that MPLS is disabled globally and enabled on the necessary interfaces in a per-interface basis

  C. Execute the traceroute utility to generate information about the labels used along the path

  D. Verify that Cisco Express Forwarding has been disabled on the network

  Correct Answer: C

• Question 168:

  Assume that the R1 router is enabled for PIM-SM and receives a multicast packet sourced from 172.16.1.100, and the R1 router has multicast receivers on the Gi0/1, Gi0/2, Gi0/3 and Gi0/4 interfaces.

  

  The multicast packet from the 172.16.1.100 source must arrive on which interface on the R1 router for it to be forwarded out the other interfaces?

  A. Gi0/1

  B. Gi0/2

  C. Gi0/3

  D. Gi0/4

  E. Gi0/1 or Gi0/2 or Gi0/3 or Gi0/4

  F. Gi0/2 or Gi0/3

  G. Gi0/1 or Gi0/4

  Correct Answer: A

• Question 169:

  For which reason can two devices fail to establish an OSPF neighbor relationship?

  A. The two devices have different process IDs

  B. The two devices have different network types

  C. The two devices have different router IDs

  D. The two devices have the same area ID

  Correct Answer: B

  Reference: https://www.cisco.com/c/en/us/support/docs/ip/open-shortest-path-first-ospf/13699-29.html

• Question 170:

  What is used by SR-TE to steer traffic through the network?

  A. shortest path calculated by IGP

  B. dynamic rules

  C. path policy

  D. explicit maps

  Correct Answer: C

  Reference: https://www.cisco.com/c/en/us/td/docs/routers/asr9000/software/segment-routing/configuration/guide/b-seg-routing-cg-asr9k/b-seg-routing-cg-asr9k_chapter_0100.html