Nokia Nokia Certifications 4A0-C04 Questions & Answers

• Question 191:

  Click on the exhibit.

  

  A fully loose LSP "toR6" is configured. All links have the same cost and all routers are Nokia 7750 SRs. The LSP currently traverses the path R1-R2-R7-R8-R4-R6 and the resignal timer is enabled. Which of the following about this LSP is FALSE?

  A. The LSP will switchover to another path if a failure occurs.

  B. The LSP will switchover to a better path as soon as it is available.

  C. CSPF must be enabled for this LSP to attempt to find a better path.

  D. The LSP will switchover to a better path in a MBB fashion.

  Correct Answer: B

• Question 192:

  Click on the exhibit button below:

  

  Consider the following:

  -Router R2 is an ABR in OSPF Areas 0 and 1.

  -

  Router R2 advertises the aggregate prefix 10.10.10.0/24 into Area 1.

  -

  Router R1 in Area 0 generates LDP labels for FECs 10.10.102/31 and 10.10.10.4/31

  Router R3 in Area 1 places these FECs in its LIB, but it does not place them in its LFIB. What can you do on router R3 to make it populate these labels in its LFIB?

  A.

  Disable route summarization on router R3

  B.

  Enable LDP aggregate prefix match

  C.

  Create an import policy to accept these FECs

  D.

  Disable LDP exact match on the specified FECs

  Correct Answer: B

• Question 193:

  An OSPF adjacency is stuck in the exstart state. What is the most likely cause?

  A. The MTU does not match on both interfaces.

  B. OSPF is not enabled on one of the routers.

  C. The router ID is the same on both routers.

  D. An OSPF Hello has not been received from the neighbor.

  E. The interfaces are configured as point-to-point on one side and broadcast on the other.

  Correct Answer: A

• Question 194:

  Which one of the commands below will create a static route to network 2.3.4.0/24 on the AlcatelLucent 7750 SR router?

  A. Static route 2.3.4.0 255.255.255.0 next hop 3.4.5.6

  B. Static-route next-hop 3.4.5.6 2.3.4.0/24

  C. Static route 2.3.4.0/24 next hop 3.4.5.6

  D. Static-route 2.3.4.0/24 next-hop 3.4.5.6

  Correct Answer: D

• Question 195:

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

  A. IP packets sent to an IP multicast address.

  B. Ethernet frames sent to an Ethernet multicast address.

  C. IP packets sent to an IP unicast address.

  D. UDP packets sent to an IP multicast address.

  Correct Answer: A

• Question 196:

  An LSP is configured with one-to-one FRR and node protection on a Nokia 7750 SR. Which of the following is FALSE?

  A. Each PLR signals a protection tunnel that avoids the downstream node.

  B. A single protection tunnel can protect all LSPs that go through the same hop.

  C. A link protection tunnel is signaled if a node protection tunnel cannot be established.

  D. Protection tunnels used in this LSP are also detour tunnels.

  Correct Answer: B

• Question 197:

  What happens by default on an Nokia 7750 SR when a null encapsulated SAP receives a frame with a VLAN tag?

  A. The original VLAN tag is removed.

  B. The original VLAN tag is kept.

  C. The VLAN tag is replaced by a provider tag.

  D. The VLAN tag is kept and a provider tag is added.

  Correct Answer: B

• Question 198:

  Which utility on the Nokia 7750 SR can be used to investigate an MPLS path?

  A. Isp-trace

  B. Idp-trace

  C. Sdp-ping

  D. Svc-ping

  E. Ping

  Correct Answer: A

• Question 199:

  Which of the following statements regarding area border routers in an OSPF network is true?

  A. The term backbone router has the same definition as the term area border router.

  B. An OSPF network needs at least one area border router to function.

  C. Area border routers connect the backbone area to other areas in an OSPF network.

  D. By definition, an area border router must perform route summarization between areas.

  Correct Answer: C

• Question 200:

  In which of the following types of areas does an OSPF router not set the E bit in its Type 1 LSA?

  A. Not so stubby area

  B. Stub area

  C. Backbone area

  D. Normal area

  Correct Answer: B