Nokia 4A0-C01 Online Practice Questions and Exam Preparation

Nokia 4A0-C01 Online Questions & Answers

• Question 551:

  Which OSPFv3 LSA advertises an ASBR?

  A. AS Summary
  B. Inter-Area Network
  C. Inter-Area Router
  D. Intra-Area Prefix
  C. Inter-Area Router

• Question 552:

  Which field of an IPv6 header indicates an upper layer protocol carried in the packet?

  A. Next Header
  B. Traffic Class
  C. Flow Label
  D. Payload Length
  E. Options
  A. Next Header

• Question 553:

  Which of the following about CSPF is TRUE?

  A. The tail-end router performs the CSPF calculation for an LSP.
  B. CSPF calculations are always performed on RSVP-TE based LSPs.
  C. The head-end router performs the CSPF calculation for an LSP.
  D. Each downstream router performs its own CSPF calculation for an LSP.
  C. The head-end router performs the CSPF calculation for an LSP.

• Question 554:

  How is the DR selected when an OSPF router is added to a broadcast network?

  A. The current DR is selected, if there is one. Otherwise, the router with the lowest priority is the DR. If priorities are the same, the DR is chosen based on the lowest RID.
  B. The current DR is selected, if there is one. Otherwise, the router with the highest priority is the DR. If priorities are the same, the DR is chosen based on the highest RID.
  C. The router with the lowest priority is the DR. If priorities are the same, the current DR is selected. Otherwise the DR is chosen based on the lowest RID.
  D. The router with the highest priority is the DR. If priorities are the same, the current DR is selected. Otherwise the DR is chosen based on the highest RID.
  B. The current DR is selected, if there is one. Otherwise, the router with the highest priority is the DR. If priorities are the same, the DR is chosen based on the highest RID.

• Question 555:

  Click the exhibit button.

  

  What triggers convergence of the routing protocol when the link between switch 1 and switch 2 goes down?

  A. Convergence is triggered when the adjacency between routers R1 and R2 drops as a result of Hello timeouts. At this point, both routers R1 and R2 re-compute their link state database and send updates to their adjacent routers. Once the process is complete for all routers, the networks have converged.
  B. Convergence is triggered when the physical interfaces between routers R1 and R2 go down. At this point, both routers R1 and R2 re-compute their link state database and send updates to their adjacent routers. Once the process is complete for all routers, the networks have converged.
  C. Convergence will not be triggered because switches cannot run routing protocols between them.
  D. Convergence is triggered when the switches notify the routers about the link state information. At this point, both routers R1 and R2 re-compute their link state database and send updates to their adjacent routers. Once the process is complete for all routers, the networks have converged
  E. Convergence is triggered when an LSA is sent from router R1 to router R2 to indicate that the link is down. At this point, both routers R1 and R2 re-compute their link state database and send updates to their adjacent routers. Once the process is complete for all routers, the networks have converged.
  A. Convergence is triggered when the adjacency between routers R1 and R2 drops as a result of Hello timeouts. At this point, both routers R1 and R2 re-compute their link state database and send updates to their adjacent routers. Once the process is complete for all routers, the networks have converged.

• Question 556:

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

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

• Question 557:

  What is another term to describe the default route for a client?

  A. Black hole
  B. Default gateway
  C. Gateway path
  D. Proxy ARP
  B. Default gateway

• Question 558:

  Which of the following statements are TRUE regarding a fully meshed VPLS service with a default setting? (Choose 3)

  A. The vc-id on the mesh-sdp must be explicitly configured.
  B. The vc-id on the mesh-sdp is automatically assigned by a PE using the service id.
  C. The VPLS service id, on all PE routers, does not have to match.
  D. The VPLS service id, on all PE routers, must match.
  E. If dynamic signaling is required, the signaling on all PE routers must be set to TLDP in the configuration of the SDPs.
  F. The signaling on all PE routers will default to TLDP in the configuration of the SDPs; therefore, no configuration change is required for dynamic signaling.
  A. The vc-id on the mesh-sdp must be explicitly configured.
  D. The VPLS service id, on all PE routers, must match.
  F. The signaling on all PE routers will default to TLDP in the configuration of the SDPs; therefore, no configuration change is required for dynamic signaling.

• Question 559:

  Which service type is needed to bridge an ATM-attached user and an Ethernet-attached user?

  A. A-pipe
  B. F-pipe
  C. C-pipe
  D. E-pipe
  D. E-pipe

• Question 560:

  Click on the exhibit.

  

  An LSP path is established on router R1 toward router R6. If there is a problem on router R4, but the link between R2 and R4 remains up, which of the following will affect the failure detection time?

  A. The time router R2 takes to receive a PATH Error message from router R4.
  B. The time router R2 takes to find out a number of RSVP Hello messages have been missed.
  C. The time router R2 takes to send a PATH Tear message to the head-end router.
  D. The time router R2 takes to receive a PATH message from router R4 after a PATH refresh interval.
  B. The time router R2 takes to find out a number of RSVP Hello messages have been missed.