Nokia Nokia Certifications 4A0-C04 Questions & Answers

• Question 81:

  Which of the following best describes the type of packets used by OSPF routers to exchange updates on a point-to-point link?

  A. IP packets sent to an IP multicast address.

  B. TCP packets sent to an IP multicast address.

  C. IP packets sent to an IP unicast address.

  D. UDP packets sent to an IP multicast address.

  Correct Answer: A

• Question 82:

  Click the exhibit button.

  

  In the topology shown, router R1 is an ASBR configured to export external routes to OSPF. Assuming that there are no stub networks, which of the following statements regarding type 4 LSA generation is true?

  A. Router R1 generates a type 4 LSA that is flooded to areas 0, 1, and 2.

  B. Router R3 generates a type 4 LSA that is flooded to areas 0, 1, and 2.

  C. Router R3 generates a type 4 LSA that is flooded to areas 0 and 2.

  D. Router R3 generates a type 4 LSA that is flooded to area 0, and router R6 generates a type 4 LSA that is flooded to area 2.

  Correct Answer: D

• Question 83:

  Which of the following is NOT a characteristic of MPLS?

  A. It provides the ability to establish connection oriented paths over a connectionless IP network.

  B. It provides a mechanism to engineer network traffic patterns independently of IP routing tables.

  C. It will work over most physical layer protocols.

  D. It can use GRE tunnels to transport data from many different protocols over an IP network.

  Correct Answer: D

• Question 84:

  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 85:

  Click on the exhibit.

  

  Which of the following is FALSE?

  A. The Isp-ping tool is used to perform a unidirectional LSP test.

  B. The router 10.10.10.2 is the egress router of the LSP.

  C. The router can reach the far-end of the LSP through an RSVP-TE tunnel.

  D. The router can reach the far-end of the LSP through an LDP tunnel.

  Correct Answer: D

• Question 86:

  Click the exhibit button.

  

  Part of a 6VPE deployment is shown. Which of the following is the correct configuration and context on router CE1 for a BGP peering session with 6VPE1?

  

  A. Option A

  B. Option B

  C. Option C

  D. Option D

  Correct Answer: D

• Question 87:

  Which of the following statements is TRUE?

  A. An OSPF adjacency can be established on an IES interface.

  B. IES allows provider MP-BGP sessions to be extended to customers.

  C. An IES service must use static routes in order to communicate with customer networks.

  D. An IES interface supports OSPF and IS-IS in passive mode only.

  Correct Answer: A

• Question 88:

  Which of the following about IS-IS Traffic Engineering on an Nokia 7750 SR is FALSE?

  A. Traffic engineering information is carried in the extended TLVs.

  B. Traffic engineering must be enabled on all IP/MPLS routers along the LSP path.

  C. Traffic engineering information is stored in the opaque database,

  D. Traffic engineering is required for constraint-based LSPs.

  Correct Answer: C

• Question 89:

  Which of the following fields does NOT appear in the MPLS label header?

  A. Label

  B. Frame check sequence

  C. Traffic Class (previously called Experimental)

  D. Time To live

  E. Bottom of stack bit

  Correct Answer: B

• Question 90:

  Which MPLS mode saves only active label mappings received from peer LSRs?

  A. Conservative label retention

  B. Liberal label retention

  C. Downstream on demand

  D. Downstream unsolicited

  Correct Answer: A