Nokia Nokia Certifications 4A0-103 Questions & Answers

• Question 81:

  Click on the exhibit.

  

  An LDP-over-RSVP tunnel is established between routers R1 and R6. There is a VPN service running between routers R1 and R6. Which of the following is TRUE?

  A. Router R3 swaps both the RSVP-TE LSP label and LDP transport label received with new labels.

  B. Router R3 swaps the VPN service label received with a new label.

  C. Router R3 uses the same RSVP-TE LSP label as the one received from router R2.

  D. Router R3 uses the same LDP transport label as the one received from router R2.

  Correct Answer: D

• Question 82:

  Click on the exhibit.

  

  All links have 1 Gbps unreserved bandwidth initially. After the LSP's primary and standby secondary paths are signaled, how much bandwidth is reserved on the link between routers R1 and R2?

  A. If Shared Explicit reservation style is used, 400Mbps is reserved.

  B. If Shared Explicit reservation style is used, 700Mbps is reserved.

  C. If Fixed Filter reservation style is used, 400Mbps is reserved.

  D. If Fixed Filter reservation style is used, 300Mbps is reserved.

  Correct Answer: A

• Question 83:

  Click on the exhibit.

  

  The link between routers R4 and R6 are configured with an admin group "red". What happens when the LSP is first signaled?

  A. The LSP will go through the path R1-R2-R4-R6.

  B. The LSP will go through the path R1-R3-R5-R6.

  C. The LSP is down because router R1 detects that no path can meet its constraints.

  D. The LSP is down because router R4 detects that no path can meet its constraints.

  Correct Answer: C

• Question 84:

  Which of the following modes are used by RSVP-TE on an Alcatel-Lucent 7750 SR?

  A. Independent control mode, downstream on demand

  B. Independent control mode, downstream unsolicited

  C. Ordered control mode, downstream on demand

  D. Ordered control mode, downstream unsolicited

  Correct Answer: C

• Question 85:

  Which of the following about RSVP refresh reduction on a Alcatel-Lucent 7750 SR is FALSE?

  A. RSVP generates a summary refresh message for each LSP.

  B. Message-IDs replace individual refresh messages.

  C. An LSP state change causes the Message-ID to be incremented.

  D. RSVP refresh reduction is disabled by default.

  Correct Answer: A

• Question 86:

  Which of the following about RSVP-TE LSP configuration in a Alcatel-Lucent 7750 SR is TRUE?

  A. LSPs must always terminate on a system ID.

  B. MPLS and RSVP must be enabled on all LSRs.

  C. CSPF must be enabled.

  D. Path definitions must include at least one hop entry.

  Correct Answer: B

• Question 87:

  An LSP is configured with a fully loose path and CSPF is not enabled. An LSR receives the first PATH message for this LSP. Which of the following is NOT performed by the LSR?

  A. The LSR regenerates and forwards a new PATH message.

  B. The LSR stores the PATH message in the PSB.

  C. The LSR forwards the PATH message based on the HOP object in the RSB.

  D. The LSR looks up the PATH message's destination IP address in the FIB.

  Correct Answer: C

• Question 88:

  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.

  Correct Answer: B

• Question 89:

  Click on the exhibit.

  

  Why might router R2 have a Link LDP session to R1 (10.10.10.1:0) but not to R3 (10.10.10.3:0)?

  A. LDP is not configured on R2.

  B. R2 does not have a route to 10.10.10.3.

  C. LDP is not configured on R3's interface to R2.

  D. The targeted session is not configured on R2.

  Correct Answer: C

• Question 90:

  Which of the following about an established LDP session is TRUE?

  A. It uses a UDP connection with an arbitrary port number.

  B. It uses a UDP connection with well-known port number 646.

  C. It uses a TCP connection with an arbitrary port number.

  D. It uses a TCP connection with well-known port number 646.

  Correct Answer: D