Nokia 4A0-103 Online Practice Questions and Exam Preparation

Nokia 4A0-103 Online Questions & Answers

• Question 191:

  Which of the following statements best describes downstream unsolicited label distribution?

  A. An LER may answer requests for label mappings immediately, without waiting for a label mapping from the next-hop.
  B. An LER may advertise label mappings to all peers for which it might be a next-hop for a given FEC.
  C. An LER propagates a label mapping downstream for a FEC. only if it has a label mapping for the FEC next-hop.
  D. An LER will only distribute a label for a FEC when it has been requested to do so.
  B. An LER may advertise label mappings to all peers for which it might be a next-hop for a given FEC.

• Question 192:

  All links have 1Gbps unreserved bandwidth initially and all LSPs have the least-fill feature enabled. After the two LSPs have been signaled as shown, two new LSPs are configured. LSP-3 is signaled first with 600Mbps reserved. LSP-4 is signaled after with 800Mbps reserved. All LSPs have the same setup and hold priorities. Which paths will CSPF choose for LSP-3 and LSP-4?

  A. LSP-3 takes R1-R3-R5-R6 and LSP-4 takes R1-R2-R4-R6.
  B. LSP-3 takes R1-R2-R4-R6 and LSP-4 takes R1-R3-R5-R6.
  C. LSP-3 takes R1-R3-R5-R6 and LSP-4 has no available path.
  D. LSP-3 takes R1-R2-R4-R6 and LSP-4 has no available path.
  C. LSP-3 takes R1-R3-R5-R6 and LSP-4 has no available path.

• Question 193:

  Which of the following LDP settings can be changed with CLI?

  A. Label space mode
  B. Label retention
  C. Control mode
  D. Keepalive factor
  D. Keepalive factor

• Question 194:

  Which of the following about LSP path configuration on an Alcatel-Lucent 7750 SR is TRUE?

  A. The path must include at least one hop.
  B. The path may be used for multiple LSPs.
  C. The path may be used multiple times in a single LSP.
  D. The path must define a tunnel destination IP address.
  B. The path may be used for multiple LSPs.

• Question 195:

  Click on the exhibit.

  

  LSP 1's link between routers R3 and R6 has failed, and the RESV state at router R3 has timed out. Which of the following actions will router R3 initiate?

  A. Send a PathTear message towards router R6.
  B. Send a PathTear message towards router R1.
  C. Send a ResvTear message toward router R6.
  D. Send a ResvTear message toward router R1.
  D. Send a ResvTear message toward router R1.

• Question 196:

  Which of the following about LDP sessions is TRUE?

  A. Frame mode requires multiple sessions between peers.
  B. The lower transport address initiates the session.
  C. Established LDP sessions run over a TCP connection.
  D. An LDP session is established immediately after Init messages are exchanged between peers.
  C. Established LDP sessions run over a TCP connection.

• Question 197:

  Click on the exhibit.

  

  After the Isp-ping command is executed, which of the following best describe the router's action?

  A. MPLS Echo Request packets are sent unlabeled to the prefix 192.10.1.2.
  B. MPLS Echo Request packets are sent within the LDP tunnel that are signaled for 192.10.1.2.
  C. MPLS Echo Request packets are sent within the RSVP-TE tunnel that are signaled for 192.10.1.2.
  D. MPLS Echo Request packets are sent over TCP.
  B. MPLS Echo Request packets are sent within the LDP tunnel that are signaled for 192.10.1.2.

• Question 198:

  Which of the following is NOT an advantage of RSVP-TE compared to LDP?

  A. RSVP-TE supports Connection Admission Control (CAC).
  B. RSVP-TE enables simplified configuration of LSPs.
  C. RSVP-TE supports path calculations that do not use IGP cost.
  D. RSVP-TE provides support for traffic protection features.
  B. RSVP-TE enables simplified configuration of LSPs.

• Question 199:

  An Alcatel-Lucent 7750 SR label switches a packet it receives. The packet has an outer label TTL of 250 and an inner label TTL of 251. Which of the following is TRUE?

  A. The outer label TTL will be 249 and the inner label TTL will be 250.
  B. The outer label TTL will be 249 and the inner label TTL will be 251.
  C. The outer label TTL will be 251 and the inner label TTL will be 251.
  D. The outer label TTL will be 251 and the inner label TTL will be 252.
  B. The outer label TTL will be 249 and the inner label TTL will be 251.

• Question 200:

  Which of the following best describes downstream on demand label distribution?

  A. An LSR answers requests for label mappings immediately, without waiting for a label mapping from the next-hop.
  B. An LSR advertises label mappings to all peers for which it might be a next-hop for a given FEC.
  C. An LSR distributes a label mapping for a FEC when it has been requested to do so.
  D. An LSR propagates a label mapping downstream for a FEC. only if it has a label mapping for the FEC's next-hop.
  C. An LSR distributes a label mapping for a FEC when it has been requested to do so.