Nokia Nokia Certifications 4A0-101 Questions & Answers

• Question 131:

  Click on the exhibit.

  

  All ports in the network are operationally up and have a speed of 1Gbps.

  Which of the following is TRUE?

  A. Data traffic from network 192.168.1.0/24 to 192.168.3.0/24 will be forwarded through router R2.

  B. Data traffic from network 192.168.3.0/24 to 192.168.1.0/24 will be forwarded through router R2.

  C. The system interface of routers R1 and R3 must be included into OSPF for traffic to flow between the 192.168.1.0/24 and 192.168.3.0/24 networks.

  D. The OSPF adjacency between router R1 and router R3 is operationally down.

  Correct Answer: B

• Question 132:

  A static route needs to be configured with a next-hop that is NOT directly connected to the router. Which of the following must be TRUE?

  A. The router must also have an active static route to the next-hop specified in the static route command.

  B. The system address of the next-hop router must be included in the static route command.

  C. The command option "indirect" must be used in the static-route command.

  D. The system address of the router connected to the destination must be included in the static route command

  Correct Answer: C

• Question 133:

  Click on the exhibit.

  

  Router R1 distributes its globally routed address and its loopbacks into IS-IS. Routers R2 and R4 have their globally routed addresses in IS-IS.

  How many routes will router R4 have in its IPv6 route table?

  A. 2

  B. 3

  C. 4

  D. 5

  E. 6

  F. 7

  Correct Answer: E

• Question 134:

  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 135:

  Which of the following is FALSE regarding link-state protocols?

  A. Each router constructs its own link-state database with updates received from neighbors.

  B. When a router performs an SPF computation, it sends the results to its neighbors.

  C. An SPF computation is done by each router to determine the best path to destination prefixes

  D. The link-state database is identical for all routers in a single area routing domain.

  Correct Answer: B

• Question 136:

  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 137:

  Which part of the NSAP address is used to indicate to the end system that a packet is to be processed by the router itself?

  A. AFI

  B. IDI

  C. HO-DSP

  D. NSEL

  Correct Answer: D

• Question 138:

  On which type of IS-IS router is summarization most likely to be configured?

  A. L1 routers

  B. L2 routers

  C. L1/L2 routers

  D. L1 and L2 routers

  Correct Answer: C

• Question 139:

  Which of the following statements concerning OSPFv3 is false?

  A. MD5 Authentication is not supported.

  B. Router LSAs do not carry IPv6 prefix information

  C. NSSA is not supported in OSPFv3.

  D. OSPFv3 uses a 32-bit router ID.

  Correct Answer: C

• Question 140:

  A router receives an OSPF database description packet from a neighbor that references an LSA, which is already in the router's LSDB. The sequence number in the DBD packet is lower than the sequence number of the LSA in the LSDB.

  What action does the router take?

  A. The router sends a link-state update to its neighbor.

  B. The router sends a link-state acknowledgement to its neighbor.

  C. The router updates the information in its LSDB with the information received from its neighbor.

  D. The router sends a link-state request to its neighbor.

  E. The router takes no action.

  Correct Answer: A