Nokia Nokia Certifications 4A0-103 Questions & Answers

• Question 11:

  Which of the following is NOT an application of MPLS?

  A. Enabling VPNs

  B. Enabling traffic engineering

  C. Enabling network security

  D. Enhancing network resiliency

  Correct Answer: C

• Question 12:

  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.

  Correct Answer: D

• Question 13:

  Which LSA type is used for OSPF-TE?

  A. Type 8 LSA -- Link Local LSA

  B. Type 9 LSA -- Link local Opaque LSA

  C. Type 10 LSA -- Area local Opaque LSA

  D. Type 11 LSA --AS Opaque LSA

  Correct Answer: C

• Question 14:

  Which of the following about IS-IS Traffic Engineering on an Alcatel-Lucent 7750 SR is FALSE?

  A. Traffic engineering information is carried in the extended TLVs.

  B. Traffic engineering must be enabled on all IP/MPLS routers along the LSP path.

  C. Traffic engineering information is stored in the opaque database,

  D. Traffic engineering is required for constraint-based LSPs.

  Correct Answer: C

• Question 15:

  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 within the RSVP-TE tunnel that is signaled for "lsp- toR2".

  B. MPLS Echo Request packets are sent within the LDP tunnel that is signaled for Mlsp-toR2".

  C. MPLS Echo Request packets are IP-routed to the destination address of "lsp-toR2".

  D. MPLS Echo Request packets are sent to the destination address of "lsp-toR2" over TCP.

  Correct Answer: A

• Question 16:

  Which of the following about RSVP-TE is FALSE?

  A. It supports traffic protection using IGP equal cost paths.

  B. It supports CAC to prevent resource overbooking.

  C. It supports LSPs with traffic engineering constraints.

  D. It supports LSPs that follow the IGP best path.

  Correct Answer: A

• Question 17:

  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.

  Correct Answer: D

• Question 18:

  Click on the exhibit.

  

  This policy is applied on a router as an LDP export policy and an LDP session has been established between this router and its neighboring router. In addition to the FECs learned from its neighbors, what additional FECs will appear in this router's LIB?

  A. All FECs that are in the 192.168.1.0/24 address space.

  B. Local FECs that are in the 192.168.1.0/24 address space.

  C. All FECs that are not in the 192.168.1.0/24 address space.

  D. All FECs except the local FECs that are in the 192.168.1.0/24 address space.

  Correct Answer: B

• Question 19:

  Which of the following about label modes on the Alcatel-Lucent 7750 SR is FALSE?

  A. RSVP uses downstream on demand label distribution mode.

  B. LDP uses conservative label retention mode.

  C. LDP advertises label mappings to all peers for which it might be a next-hop for a given FEC.

  D. RSVP distributes a label mapping for a FEC when it has been requested to do so.

  Correct Answer: B

• Question 20:

  Which MPLS mode saves only active label mappings received from peer LSRs?

  A. Conservative label retention

  B. Liberal label retention

  C. Downstream on demand

  D. Downstream unsolicited

  Correct Answer: A