Cisco CCNP Service Provider 300-510 Questions & Answers

• Question 81:

  What is the role of a segment routing mapping server?

  A. It advertises a local SID mapping policy to all of the mapping clients

  B. It works with IGP instances to calculate the prefix-SIDs in the absence of a mapping policy

  C. It selects multiple mapping entries to create overlapping active mapping policies

  D. It reads and translates remotely received SIDs from other mapping servers to create SID mapping entries

  Correct Answer: A

• Question 82:

  Refer to the exhibit.

  

  Router1 and Router2 have shared routes in the OSPF database, but the routes are missing from their routing tables. Checking the prefix-list configuration on both routers, the engineer confirmed all networks are allowed. What action should the engineer take to fix the problem?

  A. Configure interface Serial1/0 on Router1 as a point-to-point interface

  B. Configure the two routers with different process IDs

  C. Switch the DR and BDR roles between the two routers

  D. Configure the two routers with different hello and dead timer values

  Correct Answer: A

• Question 83:

  Refer to the exhibit.

  

  There is a connectivity issue between Customer-1 and Customer-2. File servers between the customers cannot send critical data. R3 routes are missing from the routing table on the Customer-1 router. All interfaces on Customer-1 are up. Which configuration must be applied to router R2 to correct the problem?

  

  A. Option A

  B. Option B

  C. Option C

  D. Option D

  Correct Answer: A

• Question 84:

  Refer to the exhibit.

  

  Traffic flow from router R1 to router R6 is delay-sensitive. It must consider potential link-failure and node-failure conditions. Which configuration must an engineer apply to router R1 to route traffic to router R6 if router R2 fails?

  

  A. Option A

  B. Option B

  C. Option C

  D. Option D

  Correct Answer: C

• Question 85:

  Refer to the exhibit.

  

  While applying the configurations on two routers, an engineer notices that OSPF adjacency between them remains down. Through the ping test, the engineer confirmed that both the routers have Layer 3 reachability between them. Which action should the engineer take to make the adjacencies to full?

  A. Enable OSPF just inside the router OSPF process, not in the interfaces of any router

  B. Delete the area 0 authentication message-digest command from the OSPF process in R1

  C. Enter the command ip ospf authentication in R2 interface

  D. Delete the area 0 authentication message-digest command from the OSPF process in R2

  Correct Answer: C

• Question 86:

  Refer to the exhibit.

  

  An engineer applied the summarization configuration on R1 for four networks (192.168.20.0/24 to 192.168.23.0/24) in area 1 and eight networks (192.168.32.0/24 to 192.168.39.0/24) in area 2 to stop the flooding of all the customer routes. While checking the routing table of R2, the engineer noticed that R1 is still sending only specific routes to R2. Which configuration should the engineer apply on R1 to summarize routes?

  

  A. Option A

  B. Option B

  C. Option C

  D. Option D

  Correct Answer: D

• Question 87:

  Refer to the exhibit.

  

  A network engineer applied configuration on R5 to summarize all OSPF routes, but R4 is still receiving specific routes from R5. The engineer has confirmed that both R5 and R4 routers are configured with correct summarization configuration, but R5 is not sending the summary routes. What action must the engineer take to fix the problem?

  A. Remove summarization configuration on R5 and configure it on R4

  B. Clear link-state database on both R4 and R5 routers for summarization to work

  C. Configure a sham link between R4 and R5 to support summarization within Area 2

  D. Move R4 and R5 in separate areas as now they maintain the same link-state database

  Correct Answer: D

• Question 88:

  Which difference should be considered when intradomain or interdomain multicast routing is implemented?

  A. Interdomain multicast routing relies on PIM-DM, and intradomain multicast routing relies on PIM-SM

  B. Interdomain multicast routing uses BIDR-PIM to establish neighbor relationships between AS, and intradomain multicast routing uses MSDP

  C. A network uses intradomain multicast routing without interdomain routing, but networks that use interdomain multicast routing must also apply intradomain routing

  D. Interdomain multicast routing requires an IS-IS or OSPF neighbor relationship between the domains, but intradomain multicast routing requires only BGP

  Correct Answer: C

• Question 89:

  Refer to the exhibit.

  

  Which two commands must the engineer configure for the company's PIM-SM network to enable Auto-RP mappings to be sent over the FastEthernet0/0 interface, without affecting normal operation? (Choose two.)

  A. enable auto-rp listener

  B. enable sparse-mode

  C. enable Auto-RP announcements

  D. enable sparse-dense mode

  E. enable dense mode

  Correct Answer: AB

• Question 90:

  Refer to the exhibit.

  

  A network engineer sets up a multihoming eBGP topology where multiple Autonomous Systems connect to ASN 64501. The engineer wants to block all the routes coming from ASN 64502 but allow all the others. For that purpose, the

  following AS Path prefix list is being used: (config)#ip as-path access-list 10 deny _64502$ What must be fixed to achieve this result?

  A. The AS-PATH filter must be defined inside the route-map mode

  B. The statement must be modified with ip as-path access-list 1 deny_64502_

  C. The statement must be modified with ip as-path access-list 1 deny ^64502$

  D. At the end, ip as-path access-list 10 permit.* must be included

  Correct Answer: D