Nokia Nokia Certifications 4A0-C01 Questions & Answers

• Question 511:

  An interface is configured on a router for OSPF but the command "show router ospf neighbor" does not show any neighbors. Which of the following is NOT a possible cause?

  A. An OSPF database description packet has not been received from the neighbor.

  B. The interface facing the neighbor is down.

  C. The interface is included in a different area than the neighbor router.

  D. The router has not received a valid OSPF Hello packet from its neighbor.

  Correct Answer: A

• Question 512:

  Click on the exhibit.

  

  Which of the following best describes the format of data traffic sent to the server as it exits from the PC?

  A. The destination IP address will be the system IP address of router R1 and the destination MAC address will be the MAC address of the router R1 port connected to the PC.

  B. The destination IP address will be the IP address of the router R1 port connected to the PC and the destination MAC address will be the MAC address of the router R1 port connected to the PC.

  C. The destination IP address will be the IP address of the server and the destination MAC address will be the MAC address of the server.

  D. The destination IP address will be the IP address of the server and the destination MAC address will be the MAC address of the router R1 port connected to the PC.

  Correct Answer: D

• Question 513:

  In an OSPF network, which of the following is NOT a result of manual summarization on an ABR?

  A. It can reduce the topological database size.

  B. It can reduce the size of the route table.

  C. It can reduce the number of Summary LSAs.

  D. It can reduce the number of Router LSAs.

  Correct Answer: D

• Question 514:

  When multiple routing protocols offer a route for the same prefix, what part of the router is in charge of deciding which route to make active?

  A. The routing information base (RIB).

  B. The routing table manager (RTM).

  C. The equal cost multipath configuration (ECMP).

  D. The forwarding information base (FIB).

  E. The link state database (LSDB).

  Correct Answer: B

• Question 515:

  Which of the following is a difference between IS-IS and OSPF?

  A. IS-IS supports VLSM and CIDR.

  B. IS-IS uses OSI addressing.

  C. IS-IS supports manual summarization

  D. IS-IS uses periodic Hello messages.

  Correct Answer: C

• Question 516:

  Which of the following are characteristics of an LSP? (Choose two)

  A. It is unidirectional.

  B. It is bidirectional.

  C. It must always have a secondary path.

  D. It provides a specific tunnel for a FEC through the network.

  E. It always follows the IGP best path.

  Correct Answer: AD

• Question 517:

  Which of the following conditions must a router meet for an LSP path's RSVP session to exist? Choose two answers

  A. The router must build the Path State Block (PSB).

  B. The router must build the Reservation State Block (RSB).

  C. The router must build the Session State Block (SSB)

  D. The router must send the second RESV refresh message.

  E. The router must receive the second PATH refresh message.

  Correct Answer: AB

• Question 518:

  Click on the exhibit button below.

  

  Consider the output shown; what table is displayed?

  A. RIB

  B. FIB

  C. LIB

  D. LFIB

  Correct Answer: D

• Question 519:

  Click the exhibit button. What is the state of adjacency?

  

  A. Exchange

  B. Up

  C. Down

  D. 2-Way

  Correct Answer: C

• Question 520:

  The solicited node address for the destination node address of 2001:DB8::30A:216 4DFF:FE14:6CAE is:

  A. 2001::FF:FE:14:6CAE

  B. 2001::1:FF:14:6CAE

  C. FF02.DB8::30A:216:4DFF:FE14.6CAE

  D. FF02::1:FF14:6CAE

  Correct Answer: D