Nokia 4A0-103 Online Practice Questions and Exam Preparation

Nokia 4A0-103 Online Questions & Answers

• Question 51:

  On a point-to-point link, two directly connected routers set different interface hello timeout values. Router R1 uses 15 seconds, while router R2 uses 30 seconds. What happens to the LDP adjacency?

  A. The adjacency forms with the lower timeout value
  B. The "show router Idp session" command output displays the adjacency in state "init"
  C. The adjacency forms with the higher timeout value
  D. The adjacency times out after 30 seconds
  A. The adjacency forms with the lower timeout value

• Question 52:

  Which of the following is NOT required when configuring an LSP with an admin group constraint on an Alcatel-Lucent 7750 SR?

  A. Enable traffic engineering on all routers along the LSP path.
  B. Enable CSPF on the head-end router.
  C. Configure a path definition on all routers along the LSP path.
  D. Enable MPLS and RSVP on all routers along the LSP path.
  C. Configure a path definition on all routers along the LSP path.

• Question 53:

  Which of the following regarding label population is TRUE?

  A. Selected labels from the FIB are populated to the LFIB.
  B. Selected labels from the RIB are populated to the FIB.
  C. Selected labels from the LIB are populated to the FIB.
  D. Selected labels from the LIB are populated to the LFIB.
  D. Selected labels from the LIB are populated to the LFIB.

• Question 54:

  Click on the exhibit button below. Assume the following:

  

  -Each router's OSPF interfaces are in the areas shown.

  -

  Bidirectional LDP-over-RSVP tunnels extend from routers R1 to R3 and back over the path R1-R4-R5- R3.

  -

  You enable fast reroute facility bypass on the R5-R3 RSVP LSP.

  -

  Router R5 acts as a PLR, protecting the R5-R3 link by building a bypass tunnel through router R2.

  You build a layer 2 VPN on routers R1 and R3, using the LDP-over-RSVP tunnels. What MPLS configuration step must you complete on router R2 for it to protect the end-to-end service?

  A. Enable LDP on the R2-R5 interface.
  B. Configure T-LDP sessions between routers R2 and R5 and R3.
  C. Configure LDP-over-RSVP support on router R2.
  D. Enable MPLS and RSVP on the router R2 network interfaces.
  E. Enable LDP on the R2-R5 and R2-R3 interfaces.
  D. Enable MPLS and RSVP on the router R2 network interfaces.

• Question 55:

  Which default LDP parameter are you able to change with CLI?

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

• Question 56:

  If an Alcatel-Lucent 7750 SR is an iLER operating in pipe mode, which of the following regarding the TC field (EXP bits) is TRUE?

  A. The TC field is set based on the value of the DSCP field inside the customer packet.
  B. The TC field is set to a specific value via explicit administrative configuration.
  C. The TC field is set to a system generated random number.
  D. The TC field is set by the eLER.
  B. The TC field is set to a specific value via explicit administrative configuration.

• Question 57:

  Click on the exhibit.

  

  An LSP traverses R1-R2-R4-R6 and one-to-one fast reroute with link protection is enabled. All links have the same cost. Which of the following about DMP and MP is TRUE?

  A. R3 and R5 become DMPs; R6 becomes MP.
  B. R3 and R5 become DMPs; R4 becomes MP.
  C. R3, R5, and R6 become DMPs; R4 becomes MP.
  D. R1, R3, and R5 becomes DMPs; R4 and R6 become MPs.
  A. R3 and R5 become DMPs; R6 becomes MP.

• Question 58:

  Which of the following commands may only be used on the head end router to verify the status of an LSP named "LSP 1"? (Choose two)

  A. show router mpls Isp "LSP 1" originate
  B. show router mpls Isp "LSP 1" path detail
  C. show router rsvp session originate
  D. show router rsvp session "LSP 1"
  B. show router mpls Isp "LSP 1" path detail
  C. show router rsvp session originate

• Question 59:

  Click on the exhibit.

  

  An LDP tunnel is established on R1-R2-R4-R6 because the link between routers R3 and R6 is down. With the LDP-IGP Sync feature enabled and after the link is restored, which of the following is FALSE?

  A. Router R3 starts the LDP-Sync timer after recovering the LDP session on R3-R6.
  B. Router R1 continues to use R1-R2-R4-R6 until the LDP-Sync feature is disabled.
  C. Router R3 advertises the maximum metric for the link to router R6.
  D. Router R1 receives a label from router R3 after the LDP session is established on R3-R6.
  B. Router R1 continues to use R1-R2-R4-R6 until the LDP-Sync feature is disabled.

• Question 60:

  What MPLS function should be performed by a router that receives a data packet containing an MPLS label value of 3?

  A. A router will never receive a packet containing this label value.
  B. Request a new label from the peer that provided this label.
  C. Pop the label.
  D. PUSH an additional label onto the label stack.
  E. Signal a new label to the peer that sent the packet.
  A. A router will never receive a packet containing this label value.