Cisco CCNP 300-510 Questions & Answers

• Question 31:

  A network operator working for a telecommunication company with an employee id: 4074:92:707 is planning to implement the Nonstop Forwarding (NSR) feature on the customer's core network. After getting the configuration ready for NSR. on which router should the operator implement NSR changes?

  A. on the CE router

  B. on the ASBR router

  C. on the ABR router

  D. on the PE router

  Correct Answer: D

  Reference: https://www.cisco.com/en/US/technologies/tk869/tk769/technologies_white_paper0900aecd801dc5e2.html

• Question 32:

  When deploying a nationwide network of routers, what is the benefit of using BGP confederations?

  A. availability

  B. scalability

  C. security

  D. automatability

  Correct Answer: B

  Reference: https://www.routerfreak.com/bgp-network-design-bgp-confederation/

• Question 33:

  Refer to the exhibit.

  

  An engineer working on a client's network is trying to solve the BGP community issue on R1 and R2 routers. After displaying the BGP entries, the engineer notices that both routers still have different outputs. Which action must the engineer perform to any of the routers to correct the problem and get the same output?

  A. Execute the lp bgp-community new-format command in Router1.

  B. Remove the lp bgp-community new-format command in Router1.

  C. Advertise the route to Router2 as standard community.

  D. Advertise the route to Router2 as extended community.

  Correct Answer: A

  Reference: https://www.noction.com/blog/understanding-bgp-communities

• Question 34:

  What are two features of dual-stack? (Choose two.)

  A. It is implemented without excessive processing power.

  B. It supports IPv4 and IPv6 traffic on the same infrastructure.

  C. It allows an engineer to stack multiple Layer 2 switches to serve as a single switching unit.

  D. It requires tunneling IPv6 traffic over an IPv4 infrastructure.

  E. It securely routes and tunnels traffic between separate sites over the Internet.

  Correct Answer: AB

• Question 35:

  Refer to the exhibit.

  

  The extension header of the IPv6 header is ignored when which value is equal to zero?

  A. Segments Left

  B. Hdr Ext Len

  C. Routing Type

  D. Next Header

  Correct Answer: D

  Reference: https://www.ciscopress.com/articles/article.asp?p=31948

• Question 36:

  Refer to the exhibit.

  

  A network engineer configured routers R1 and R5 to run in IS-IS Level 1 mode and router R6 to run in IS-IS Level 2 mode. All other routers are running as Level 1 / Level 2 routers. An engineer expects traffic from R1 to R6 to pass via R2, but IS-IS routing has calculated the best path via R4. Which action corrects the problem?

  A. Configure all routers as Level 1 routers.

  B. Remove the link metric for the link from router R1 to router R2.

  C. Change the link metric for the link from router R1 to router R2 to 1.

  D. Configure all routers as Level 1 / Level 2 routers.

  Correct Answer: C

  The default link metric for IS-IS is 10, so changing the link from R1 to R2 to 1 will change the overall metric to R6 to 9 (8+1).

• Question 37:

  Refer to the exhibit.

  

  An engineer working for a private telecommunication company with an employee id: 1234:09:567 implemented this configuration on Router1, what is the effect of it?

  A. Router 1 receives only one best path from neighbor 192.168.1.1

  B. Router 1 sends only one best path to neighbor 192.168.1.1

  C. Router 1 sends up to three paths to neighbor 192.168.1.1 for all routes

  D. Router 1 sends and receives multiple best paths from neighbor 192.168.1.1

  Correct Answer: D

• Question 38:

  Refer to the exhibit.

  

  Company A established BGP sessions with several ISPs. A network engineer at the company must filter out all traffic except for routes that transit AS 152.

  The engineer configured the filtering policy "permit _152S_(_[0.9])" on R1, but after applying the configuration, the engineer notices that other routes are still visible.

  Which action resolves the issue?

  

  A. Option A

  B. Option B

  C. Option C

  D. Option D

  Correct Answer: A

• Question 39:

  Refer to the exhibit.

  

  An engineer is troubleshooting an issue with traffic steering using the color-only automated steering mechanism. BGP is failing to automatically steer traffic into an SR policy with the given color of a route, regardless of the next hop.

  The layer 2 configuration is correct, and the physical connection between the devices is working normally.

  Whch additional command sequence must the engineer add to correct the issue?

  

  A. Option A

  B. Option B

  C. Option C

  D. Option D

  Correct Answer: D

• Question 40:

  Refer to the exhibit.

  

  Excessive routes are flooding from network 150.0.0.0 into AS100. Internet traffic between AS400 and AS300 is working normally. No route controlling mechanism is applied on incoming and outgoing traffic Which configuration resolves the issue?

  

  A. Option A

  B. Option B

  C. Option C

  D. Option D

  Correct Answer: A