Nokia Nokia Certifications 4A0-C01 Questions & Answers

• Question 371:

  Which of the following describes 6PE?

  A. P routers run IPv4 only. PE routers run IPv4 only and exchange IPv6 routes using MP- BGP.

  B. P routers run IPv4 only. PE routers run both IPv4 and IPv6 and exchange IPv6 routes using MP-BGP.

  C. P routers run IPv6 only. PE routers run both IPv4 and IPv6 and exchange IPv4 routes using MP-BGP.

  D. P routers run IPv6 only. PE routers run IPv6 only and exchange IPv4 routes using MP- BGP.

  Correct Answer: B

• Question 372:

  Which of the following statements best describes the flooding of traffic on a PE when traffic is received on a SAP?

  A. Traffic is flooded to all SAPs in the service.

  B. Traffic is flooded to all SAPs and spoke SDPs in the service.

  C. Traffic is flooded to all SAPs and mesh SDPs in the service.

  D. Traffic is flooded to all SAPs, spoke SDPs, and mesh SDPs in the service.

  E. The traffic is not flooded.

  Correct Answer: D

• Question 373:

  Which of the following is NOT an application of MPLS?

  A. Enabling VPNs

  B. Enabling traffic engineering

  C. Enabling network security

  D. Enhancing network resiliency

  Correct Answer: C

• Question 374:

  What MPLS function should be performed by a router that receives a data packet with an MPLS label value of 0?

  A. Push an additional label onto the label stack.

  B. Pop the label.

  C. Swap the label.

  D. Pop the label and push an additional label onto the label stack.

  Correct Answer: B

• Question 375:

  Click on the exhibit. After the Isp-ping command is executed, which of the following best describe the router's action?

  A. MPLS Echo Request packets are sent within the RSVP-TE tunnel that is signaled for "lsp-toR2".

  B. MPLS Echo Request packets are sent within the LDP tunnel that is signaled for Mlsp- toR2".

  C. MPLS Echo Request packets are IP-routed to the destination address of "lsp-toR2".

  D. MPLS Echo Request packets are sent to the destination address of "lsp-toR2" over TCP.

  Correct Answer: A

• Question 376:

  An ES service can have both MAC and IP filters applied to it.

  A. TRUE

  B. FALSE

  Correct Answer: B

• Question 377:

  Click on the exhibit.

  

  LSP 1's link between routers R3 and R6 has failed, and the RESV state at router R3 has timed out. Which of the following actions will router R3 initiate?

  A. Send a PathTear message towards router R6.

  B. Send a PathTear message towards router R1.

  C. Send a ResvTear message toward router R6.

  D. Send a ResvTear message toward router R1.

  Correct Answer: D

• Question 378:

  Which of the following is a characteristic of LDP Hello messages?

  A. They are multicast to the All Hosts address.

  B. They are broadcast to the subnet broadcast address.

  C. They are multicast to the All Routers address.

  D. They are broadcast or multicast, depending on the physical media.

  Correct Answer: C

• Question 379:

  Click on the exhibit.

  

  RSVP state for LSP 1 has timed out on router R3. Which of the following actions will router R3 initiate to clear the RSVP session?

  A. Send a RESV Tear message toward router R6.

  B. Send a RESV Tear message toward router R1.

  C. Send a RESV Error message toward router R6.

  D. Send a RESV Error message toward router R1.

  Correct Answer: B

• Question 380:

  Click on the exhibit.

  

  If the primary path goes down, which secondary LSP path will the head-end router select first?

  A. Secondary_Path-1

  B. Secondary_Path-2

  C. Secondary_Path-3

  D. Secondary_Path-4

  Correct Answer: C