Cisco CCNP Service Provider 300-510 Questions & Answers

• Question 191:

  Refer to the exhibit.

  

  The service provider operations team was alerted that hub site traffic from BGP AS 65101 to AS 65201 uses a non-primary path via the R5-R6 link. IBGP peering between R1 and R2 is up, and no fiber failure has been reported on the R2-R3 link. The team determined that the traffic flow between 10.10.10.1 and 192.168.30.1 is not considering the R1-R2-R3-R4 path.

  Which action resolves this issue?

  A. Add metric 5 with BGP neighbor 10.10.10.6 on R5 for receiving routes.

  B. Change the metric attribute to 20 with neighbor 10.10.10.5 on R1.

  C. Set the local-preference to the default value with BGP neighbor 10.10.10.3 on R2 for receiving routes.

  D. Change the local-preference attribute to 50 with neighbor 10.10.10.5 on R1.

  Correct Answer: D

• Question 192:

  Refer to the exhibit.

  

  A network consultant is updating the company's MPLS solution and configuring several new PE devices to enable full communication among PE devices connected to the network. The updates must ensure the redundancy and scalability of the network. The egress LSR is configured with mpls ldp explicit-null. While configuring the given PE router to be adjacent to the egress LSR, the consultant notices that MPLS forwarding is not working in the network. Which action resolves the issue?

  A. Open TCP and UDP ports 179.

  B. Configure Cisco Express Forwarding on all routers in the MPLS network.

  C. Configure MVRF on all routers in the MPLS network.

  D. Open TCP and UDP ports 464.

  Correct Answer: B

• Question 193:

  Which technique should be permitted on ASA Firewall to allow MSDP Peering?

  A. PIMv2 messages carrying MSDP messages

  B. Multicast BGP carrying MSDP messages

  C. UDP socket(s) carrying MSDP messages

  D. TCP socket(s) carrying MSDP messages

  Correct Answer: D

• Question 194:

  Which tag command is used within route-map to redistribute routes that match with routes tagged with the specified tag numbers?

  A. match route tag

  B. match all tag

  C. match tag

  D. match routing tag

  Correct Answer: C

• Question 195:

  What is the function of BGP confederations?

  A. They assign an external BGP router to serve as the route reflector.

  B. They require routers to use private AS numbers.

  C. They eliminate the need for a fully-meshed internal BGP design.

  D. They enable a single device to distribute a common configuration to its peers.

  Correct Answer: C

• Question 196:

  A network engineer recently deployed a wireless network for users at a new office to join video conferences wirelessly. The existing network consists of routers that are configured for EIGRP and BGP, which are located at several data centers in different physical locations. The engineer configured PIM-SSM within a single domain from a single source. However, during the testing phase, the video conference failed to work for any of the users. The IPs are reachable and firewalls in the network are configured correctly to allow the traffic. Which action resolves the issue?

  A. Configure PIM sparse mode to replace PIM-SSM.

  B. Configure PIM dense mode to replace PIM-SSM.

  C. Configure the devices to send join messages toward a multicast SPT.

  D. Configure the devices to send join messages toward a multicast SPT.

  Correct Answer: C

• Question 197:

  An engineer configured OSPF on all routers in the data center in the same exchange as other routers. Layer 2 connectivity was established. Now, the engineer plans to implement BFD to detect failures in the forwarding path. Which action must the engineer take?

  A. Configure IS-IS routing before implementing BFD.

  B. Configure BFD between each adjacent router.

  C. Configure BFD on any one of the routers.

  D. Configure CEF before implementing BFD.

  Correct Answer: B

• Question 198:

  Refer to the exhibit.

  

  The Cisco router has a single uplink to the upstream network, which is critical to the business. The router is configured for traffic steering with the Autoroute mechanism configured to steer all OSPF and IS-IS prefixes over non-shortest paths and divert traffic for those prefixes to the SR-TE policy. However, the Autoroute Announce functionality for all prefixes is not working.

  Which additional command set must the engineer configure on the router to correct this issue?

  

  A. Option A

  B. Option B

  C. Option C

  D. Option D

  Correct Answer: A

• Question 199:

  Refer to the exhibit.

  

  An engineer is troubleshooting a network routing issue on this IS-IS network situated at the customer's regional hub. Router 2 that runs Cisco IOS XR Software cannot see the network 10.10.10.0/24 on router 1. The Layer 2 encapsulations are correct. The ARP connectivity for the Ethernet interface that runs IS-IS is working. Which action resolves the issue?

  A. On router 1, remove the CISCOLIVE keyword after the ip router isis command under interface GigabitEthernet0/2.

  B. Under the router isis command on router 2, change is-type level-1 to is-type level-2.

  C. Under the router isis command on router 1, change is-type level-1 to is-type level-2.

  D. On router 1, add the CISCOLIVE keyword after the ip router isis command under interface GigabitEthernet0/3.

  Correct Answer: D

• Question 200:

  Refer to the exhibit.

  

  An engineering team implemented IS-IS on the network, with several different areas. Recently, router R6 in area 3 has been experiencing excessive CPU usage. To reduce the load, a network engineer implemented route summarization on R2. However, R6 is still receiving the full routes from all routers. Which action must the engineer take to resolve the excessive CPU usage?

  A. Configure all routers as Level 1/2 routers so that route summarization functions throughout the network.

  B. Configure routers R3 and R5 to send summary routes to R6.

  C. Configure the Level 2 router R6 to manage summarization for the network.

  D. Configure router R1 to send only the default route to R2 and R4.

  Correct Answer: B