Nokia 4A0-C01 Online Practice Questions and Exam Preparation

Nokia 4A0-C01 Online Questions & Answers

• Question 51:

  Click on the exhibit.

  

  An LSP traverses R1-R2-R3-R6 and one-to-one fast reroute is enabled. If the protected LSP transports two labels, and router R2 has failed, how many labels will be on the detour path?

  A. 1
  B. 2
  C. 3
  D. 4
  B. 2

• Question 52:

  Which of the following about SDPs is FALSE?

  A. All services bound to the same SDP must be the same service type.
  B. All services bound to the same SDP will have the same transport encapsulation.
  C. Any operation on an SDP will affect all services bound to that SDP.
  D. An SDP is used to direct traffic for a service from one router to another.
  A. All services bound to the same SDP must be the same service type.

• Question 53:

  Click on the exhibit.

  

  The numbers beside the links are the metrics for that link.

  Given the diagram, what path will traffic follow from router R2 to router R8, and from router R8 to router R2, if IS-IS is the routing protocol?

  A. Router R2 to router R8 will follow (R2-R3-R5-R7-R8). Router R8 to R2 will follow (R8- R7-R5-R3-R2)
  B. Router R2 to router R8 will follow (R2-R3-R4-R6-R7-R8). Router R8 to R2 will follow (R8-R7-R6-R4-R3-R2)
  C. Router R2 to router R8 will follow (R2-R3-R5-R7-R8). Router R8 to R2 will follow (R8- R7-R6-R4-R3-R2)
  D. Router R2 to router R8 will follow (R2-R3-R4-R6-R7-R8) Router R8 to R2 will follow (R8- R7-R5-R3-R2)
  A. Router R2 to router R8 will follow (R2-R3-R5-R7-R8). Router R8 to R2 will follow (R8- R7-R5-R3-R2)

• Question 54:

  Which OAM command can be used to verify the correct and consistent provisioning of a service between two service end points?

  A. sdp-ping
  B. Isp-ping
  C. sap-ping
  D. svc-ping
  D. svc-ping

• Question 55:

  In a VPLS service, the mesh-sdp vc-id is identical to the service id by default.

  A. TRUE
  B. FALSE
  A. TRUE

• Question 56:

  Which of the following describes what happens when facility backup fast reroute is enabled for a LSP? Choose three answers.

  A. Each PLR will signal a bypass tunnel that avoids the next-hop node or link.
  B. When a failure occurs, the PLR will push an additional label onto the label stack and start forwarding traffic onto its bypass tunnel.
  C. The ingress router will include a RRO object in the path message to indicate the routers that should be PLRs and MPs along the protected path.
  D. The ingress router will set the local protection desired flag in the session attribute object of the path message to inform all routers along the protected LSP path to establish bypass tunnels.
  E. When the bypass tunnel is in use, the MP will include the RRO object in its PathErr message, with the local protection in use flag set to notify the ingress router that it is using the bypass tunnel.
  A. Each PLR will signal a bypass tunnel that avoids the next-hop node or link.
  B. When a failure occurs, the PLR will push an additional label onto the label stack and start forwarding traffic onto its bypass tunnel.
  D. The ingress router will set the local protection desired flag in the session attribute object of the path message to inform all routers along the protected LSP path to establish bypass tunnels.

• Question 57:

  What causes an adjacency to change from down to two ways?

  A. When a link state update is received in response to a link state request.
  B. When a router receives a Hello packet that contains its own router ID in the neighbor list from a neighbor.
  C. When a router receives a database description packet from a neighbor.
  D. When a link state acknowledgement is received in response to a link state update.
  B. When a router receives a Hello packet that contains its own router ID in the neighbor list from a neighbor.

• Question 58:

  What happens when a packet without a VLAN tag is received on a SAP provisioned with null encapsulation while an SDP vc-type is provisioned as vlan?

  A. The frame is dropped.
  B. The service ID is added as the VLAN tag.
  C. A VLAN tag of 0 is added as the provider VLAN tag
  D. The frame is forwarded with no VLAN tag
  C. A VLAN tag of 0 is added as the provider VLAN tag

• Question 59:

  Click the exhibit button.

  

  If router R2 redistributes the IS-IS route to 192.168.3.0/24 into OSPF, router R3 preference of these two routes? Choose two answers.

  A. The OSPF internal preference
  B. The IS-IS Level 1 internal preference
  C. The IS-IS Level 2 internal preference
  D. The OSPF external preference
  E. The IS-IS Level 2 external preference
  F. The IS-IS Level 1 external preference
  B. The IS-IS Level 1 internal preference
  D. The OSPF external preference

• Question 60:

  Click on the exhibit.

  

  Given the output, which of the following is the most accurate statement about the network?

  A. There are five broadcast links and there are no point-to-point links.
  B. There are five broadcast links and there are five point-to-point links.
  C. There are five broadcast links. It's not possible to say how many point-to-point links there are.
  D. It's not possible to say how many broadcast or point-to-point links there are.
  C. There are five broadcast links. It's not possible to say how many point-to-point links there are.