Nokia Nokia Certifications 4A0-C01 Questions & Answers

• Question 631:

  Which of the following statements regarding DiffServ-TE LSPs is true?

  A. The Maximum Allocation Model (MAM) provides the most efficient bandwidth utilization model

  B. In the Maximum Allocation Model (MAM), each CT receives dedicated bandwidth constraints.

  C. In the Russian Doll Model (RDM), a CT2 LSP automatically preempts a CT1 LSP.

  D. Using the Russian Doll Mode! (RDM), a CT1 LSP may use unreserved CTO bandwidth.

  Correct Answer: B

• Question 632:

  If the destination IP address of a received unlabeled packet is successfully matched in the FIB, which of the following statements are true? Choose two answers.

  A. A PUSH label stack operation must be performed.

  B. The outgoing interface and next-hop address will be determined from the FIB.

  C. The packet can be forwarded as a labeled or unlabeled packet.

  D. A POP label stack operation may be performed.

  Correct Answer: BC

• Question 633:

  Click on the exhibit button below.

  

  LSP "toR8-5" requests fast reroute protection on the primary loose path. What could be done to remove the Failure Code shown?

  A. CSPF must be enabled at head-end on fast reroute protected loose path LSPs

  B. Fast reroute must first be enabled on the downstream routers.

  C. CSPF must be enabled on all downstream loose hop routers.

  D. Global revertive path optimization must be enabled so the path will be re-optimized around a failed node.

  Correct Answer: A

• Question 634:

  Click on the exhibit.

  

  A static route has been configured on router R1 to reach the PC at 139.120.121.2. What might be causing the ping to fail?

  A. Router R2 needs a static route to the PC.

  B. Router R2 needs a default to router R1.

  C. Router R1 needs a default route to router R2.

  D. The static route should use a next-hop of 172.31.1.2

  Correct Answer: D

• Question 635:

  Which of the following statements regarding LSPs are true? (Choose two)

  A. IGP-based LSPs are established solely from information contained in routing tables.

  B. The constraint-based routed LSP is calculated at the ingress of the network, based on the router database and user defined constraints.

  C. The constraint-based routed LSP is calculated at each hop of the LSP, based on the route table and user defined constraints.

  D. IGP-based LSPs must use LDP signaling.

  Correct Answer: AB

• Question 636:

  When a router performs the SPF calculation, which router is used as the root of the shortest path tree?

  A. The router with the least number of links.

  B. The router with the lowest router ID.

  C. The router's closest neighbor.

  D. The router doing the calculation.

  Correct Answer: D

• Question 637:

  Which function or component of the Alcatel-Lucent 7750 SR is in charge of supporting dynamic routing protocols and constructing the routing table?

  A. IOM

  B. CPM

  C. FIB

  D. SPF

  Correct Answer: B

• Question 638:

  Which of the following route types must be manually configured and will not re-route traffic when a link failure occurs in its path?

  A. A route from IS-IS.

  B. A route from OSPF.

  C. A floating static route.

  D. A static route.

  Correct Answer: D

• Question 639:

  The destination IP address of a received unlabeled packet is successfully matched in the FIB. Which of the following is FALSE?

  A. A POP label stack operation may be performed.

  B. The outgoing interface and next-hop address will be determined from the FIB.

  C. The packet can be forwarded as a labeled or unlabeled packet.

  D. A PUSH label stack operation may be performed.

  Correct Answer: A

• Question 640:

  Click on the exhibit.

  

  Router R2 learns the networks shown from IS-IS. Router R2 is configured to redistribute routes from IS-IS to OSPF as shown. Assume the OSPF and IS-IS adjacencies are operational.

  How many OSPF Type 5 LSAs will router R1 receive from router R2?

  A. 0

  B. 1

  C. 2

  D. 3

  E. 4

  Correct Answer: D