Nokia Nokia Certifications 4A0-C01 Questions & Answers

• Question 881:

  What are the default Hello and Dead timer intervals for OSPF on the Alcatel-Lucent 7750 SR?

  A. 5 and 15 seconds

  B. 10 and 30 seconds

  C. 5 and 20 seconds

  D. 10 and 40 seconds

  Correct Answer: D

• Question 882:

  If routers R1 and R2 have a Level 1 and Level 2 IS-IS adjacency, which of the following statements is true? Choose two answers.

  A. Routers R1 and R2 are in different areas.

  B. Routers R1 and R2 are in the same area.

  C. Routers R1 and R2 will send a Level 1 Hello PDU and Level 2 Hello PDU, if the interface type between them is point-to-point.

  D. Routers R1 and R2 will send a Level 1 Hello PDU and Level 2 Hello PDU, if the interface type between them is broadcast.

  E. Routers R1 and R2 will send a Level 1/2 Hello PDU if the interface type between them is broadcast.

  Correct Answer: BD

• Question 883:

  Which of the statements below best describes the pseudonode in an IS-IS network?

  A. The DIS creates a logical node to represent a group of routers on the same non- broadcast network; this node is the pseudonode

  B. The DIS creates a logical node to represent the topological database of the backbone network in an ISIS network; this node is the pseudonode

  C. The DIS creates a logical node to represent a broadcast sub-network; this node is the pseudonode

  D. The DIS creates a logical node to represent the complete topology of an IS-IS area; this node is the pseudode

  Correct Answer: C

• Question 884:

  What command will show the OSPF neighbors, and their status on the Alcatel-Lucent 7750 SR?

  A. Show ospf neighbors

  B. Show router ospf neighbors

  C. Show router ospf adjacency

  D. Show ospf adjacency

  Correct Answer: B

• Question 885:

  In an OSPF Hello packet what fields must match all neighbor routers on the segment? (Choose 3)

  A. Area ID

  B. Hello and Dead Intervals

  C. Stub flag

  D. DR and BDR addresses

  E. The list of neighbors

  Correct Answer: ABC

• Question 886:

  Which of the following is not one of the MT topologies defined for IS-IS?

  A. IPv4 In-Band Management

  B. IPv6 Routing

  C. IPv4 Multicast Routing

  D. IPv6 Multicast Routing

  E. All of the above are MT topologies defined for IS-IS.

  Correct Answer: E

• Question 887:

  An operator configures an Alcatel-Lucent 7750 SR with a loopback interface and IPv6 address. The operator then configures a routing policy to redistribute the loopback prefix into OSPFv3. What type of LSA is used to advertise the route to other OSPFv3 routers in the same area?

  A. Router LSA

  B. AS External LSA

  C. Intra-Area Prefix LSA

  D. Inter-Area Prefix LSA

  E. Network LSA

  F. None of the statements are correct.

  Correct Answer: B

• Question 888:

  Which of the statements below best describes the operation of the IPv6 anycast address?

  A. A packet with a destination anycast address is sent to all nodes on the local link.

  B. A packet with a destination anycast address is sent to all nodes on the local network.

  C. A packet with a destination anycast address is sent to all nodes that have joined the anycast group.

  D. A packet with a destination anycast address is sent to the nearest node that is assigned the anycast address

  E. A packet with a destination anycast address is sent to all nodes that are assigned the anycast address.

  Correct Answer: D

• Question 889:

  An OSPF router receives an update in which the sequence number, age, and checksum are the same as the entry already in the topological database. What action is taken by the router?

  A. The link state information is not populated in the database but is forwarded to all neighbors

  B. The link state information already in the database is overwritten and the age is reset

  C. The link state information is not populated in the database and an acknowledgement is sent

  D. The link state information is regarded as old and nothing is done.

  Correct Answer: C

• Question 890:

  A router sets the E bit in the flags of its Type 1 LSA. What does this indicate?

  A. The router is an ABR.

  B. The router is an ASBR.

  C. The router is at the end of a virtual link.

  D. The router's interface is in a stub area.

  Correct Answer: B