Nokia 4A0-103 Online Practice Questions and Exam Preparation

Nokia 4A0-103 Online Questions & Answers

• Question 1:

  Click on the exhibit.

  

  A fully loose LSP "toR6" is configured. All links have the same cost and all routers are Alcatel- Lucent 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.
  B. The LSP will switchover to a better path as soon as it is available.

• Question 2:

  Click on the exhibit.

  

  The path of a fast reroute protected LSP is R1-R2-R3. Which of the following about the protected LSP path is TRUE?

  A. All routers along the path, R1, R2, and R3 can be PLRs.
  B. If the R1-R2 link fails, router R4 becomes an MP.
  C. If the R2-R3 link fails, router R3 becomes a PLR.
  D. Router R1 is the LSP head-end and can be a PLR.
  D. Router R1 is the LSP head-end and can be a PLR.

• Question 3:

  Click on the exhibit.

  

  Which of the following about the bypass tunnel is FALSE?

  A. The router 10.10.10.1 is a PLR providing node protection for the router 10.10.10.3.
  B. One-to-one fast reroute protection is requested by an LSP.
  C. The bypass-link tunnel is used to avoid the link with the egress interface address 10.3.4.4.
  D. The bypass-node tunnel is used to avoid the next-hop downstream router 10.10.10.3.
  B. One-to-one fast reroute protection is requested by an LSP.

• Question 4:

  What is the purpose of the MPLS TC field (EXP bits)?

  A. Each implementation can use it as they see fit.
  B. It is used to carry the Ether type value.
  C. It is used to carry the TTL value.
  D. It is used to carry QoS classification.
  E. It is used to carry fragmentation flag information.
  D. It is used to carry QoS classification.

• Question 5:

  What is the purpose of a T-LDP session?

  A. It allows link LDP to be configured on the edge devices only.
  B. It is used to signal the transport labels in the provider core.
  C. It allows selective control over which devices are configured for LDP.
  D. It is used to signal the service labels in the provider core.
  D. It is used to signal the service labels in the provider core.

• Question 6:

  Which of the following are features of RSVP-TE? Choose three answers.

  A. It supports IGP-based LSPs.
  B. It supports constrained path LSPs.
  C. It does not support loose explicit path LSPs.
  D. It is recommended for use in Traffic Engineering applications.
  E. It cannot be used with facility backup fast reroute.
  A. It supports IGP-based LSPs.
  B. It supports constrained path LSPs.
  D. It is recommended for use in Traffic Engineering applications.

• Question 7:

  During node protection signaling, the PLR knows the address of the MP from which of the following methods?

  A. The PLR issues a RSVP path message to the destination router to request the address of the MP.
  B. The PLR learns the address of the MP from the ERO.
  C. The PLR learns the address of the MP from the RRO
  D. The PLR learns the address of the MP from the targeted RSVP hello message.
  E. The PLR does not need to know the address of the MP.
  C. The PLR learns the address of the MP from the RRO

• Question 8:

  Which of the following LDP message categories is UDP-based?

  A. Notification
  B. Session
  C. Discovery
  D. Advertisement
  C. Discovery

• Question 9:

  Which of the following about the Link LDP discovery process on the Alcatel-Lucent 7750 SR is FALSE?

  A. LDP Hello messages are sent over TCP.
  B. LDP Hello messages are sent to the All Routers address 224.0.0.2.
  C. LDP Hello messages are exchanged between all directly connected LDP enabled routers.
  D. Each LDP enabled router must have its own unique system IP address.
  A. LDP Hello messages are sent over TCP.

• Question 10:

  If the destination IP address of a received unlabeled packet is successfully matched in the FIB, which of the following statements are true? Choose two answers.

  A. A PUSH label stack operation must be performed.
  B. The outgoing interface and next-hop address will be determined from the FIB.
  C. The packet can be forwarded as a labeled or unlabeled packet.
  D. A POP label stack operation may be performed.
  B. The outgoing interface and next-hop address will be determined from the FIB.
  C. The packet can be forwarded as a labeled or unlabeled packet.