Nokia 4A0-C01 Online Practice Questions and Exam Preparation

Nokia 4A0-C01 Online Questions & Answers

• Question 271:

  Which of the following statements apply to link state protocol behavior? Choose three answers.

  A. Routers broadcast the entire route table to all neighbors.
  B. Information about directly connected links is sent to all neighbors.
  C. An adjacency database is maintained by each router.
  D. The sequence number for an update is incremented as it is flooded from router to router.
  E. The topological database is the same for all routers in a single area.
  B. Information about directly connected links is sent to all neighbors.
  C. An adjacency database is maintained by each router.
  E. The topological database is the same for all routers in a single area.

• Question 272:

  Refer to the exhibit below. The routers have an established IS-IS L2 adjacency on which IPv4 system addresses are exchanged. An operator successfully configures multi-topology IS-IS routing so that the IPv6 system addresses are also exchanged between routers. Which of the following statements best describes the number of IS-IS adjacencies and the number of LSPs in the LSDB of R1 AFTER IPv6 has been configured?

  

  A. R1 has one IS-IS adjacency and one LSP.
  B. R1 has one IS-IS adjacency and two LSPs.
  C. R1 has one IS-IS adjacency and four LSPs.
  D. R1 has two IS-IS-adjacencies and two LSPs
  E. R1 has two IS-IS adjacencies and four LSPs
  B. R1 has one IS-IS adjacency and two LSPs.

• Question 273:

  If two routers running IS-IS protocols are exchanging Hello packets with different authentication types, which of the following statements regarding the adjacency state established between them is true?

  A. Different authentication types are not possible because IS-IS only supports password authentication.
  B. An adjacency will not be formed
  C. The two routers negotiate the authentication type and then reach the up state.
  D. Only an L2 adjacency will form, as long as both routers are L2 capable.
  B. An adjacency will not be formed

• Question 274:

  Which of the following regarding the location of an MPLS label is FALSE?

  A. The MPLS label value may be carried in an ATM header.
  B. The MPLS label value may be carried in a shim header.
  C. The MPLS label value may be carried in an OSPF header.
  D. The MPLS label value may be carried in a Frame Relay header.
  C. The MPLS label value may be carried in an OSPF header.

• Question 275:

  Which of the following statements is true when the implicit null is implemented?

  A. The penultimate router will POP the top label from the packets.
  B. The eLER will receive packets with a top label value of 3.
  C. The eLER will receive packets with a top label value of 0.
  D. The penultimate router will always receive unlabeled packets.
  E. The penultimate router performs a double lookup on the packet.
  A. The penultimate router will POP the top label from the packets.

• Question 276:

  Which OSPFv3 LSA type is generated by an ABR to advertise prefixes from one area to another?

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

• Question 277:

  Graceful Restart is supported by what IGPs?

  A. RIPv1 and RIPv2
  B. OSPF
  C. IS-IS
  D. BGP
  B. OSPF
  C. IS-IS

• Question 278:

  How many bytes make up the system ID in an IS-IS NSAP address on the Alcatel-Lucent 7750 SR?

  A. 4 bytes
  B. 6 bytes
  C. 8 bytes
  D. Variably between 4 and 8 bytes
  B. 6 bytes

• Question 279:

  Which of the following messages is NOT used in T-LDP operation?

  A. Hello message
  B. Init message
  C. Keepalive message
  D. Label Mapping message
  E. ACK message
  E. ACK message

• Question 280:

  Which of the following correctly describes an IPV6 header compared to an IPv4 header?

  A. The IPv6 header has a header checksum field, header length field and no fragmentation offset field.
  B. The IPv6 header has no header checksum field, no header length field and does have a fragmentation offset field.
  C. The IPv6 header has a header checksum field, no header length field and no fragmentation offset field.
  D. The IPv6 header has no header checksum field, no header length field and no fragmentation offset field.
  D. The IPv6 header has no header checksum field, no header length field and no fragmentation offset field.