Alcatel-Lucent Alcatel-Lucent Certifications 4A0-106 Questions & Answers

• Question 11:

  Community lists are configured for the PE hub and spoke VPRN.

  

  Which communities should be imported by the VPRN service on PE1?

  A. "Spoke_Sites"

  B. "Hub_Site"

  C. "Spoke_Sites" and "Hub_Site"

  D. No communities should be imported.

  Correct Answer: A

• Question 12:

  The CLI command "remove-private" is configured on PE1 to eliminate BGP loops in the VPRN.

  

  For the displayed route, what is the value of the AS-Path field?

  A. 64496 64512

  B. 64512

  C. 64496

  D. 64512 64496

  Correct Answer: B

• Question 13:

  What is wrong with the VPRN configuration applied on this Nokia 7750 SR?

  

  A. The VPRN ID must match the value 101 used in the vrf-target command.

  B. The VPRN ID must match the value 101 used in the route-distinguisher command.

  C. The router-id command should not be used in this context.

  D. The "no shutdown" command must be configured for the VPRN to be operationally UP.

  Correct Answer: C

• Question 14:

  Which of the following is NOT a requirement for eiBGP load balancing to be effective?

  A. The route distinguisher of the VPRN on the local PE must be different from the route distinguisher of the remote PEs.

  B. ecmp must be configured within the VPRN instance.

  C. eibgp-loadbalance must be configured within the VPRN instance.

  D. ibgp-multipath must be configured within the VPRN instance.

  Correct Answer: A

• Question 15:

  For a Carrier Supporting Carrier (CSC) VPRN where the customer carrier is an ISP that provides Internet connectivity to its end-customers, which of the following is TRUE?

  A. The customer carrier network must be MPLS-enabled.

  B. VPRN instances are created on the CSC-CE routers.

  C. All traffic exchanged between end-customers is carried over a single CSC VRF.

  D. Customer carrier PEs residing in different sites must run MP-iBGP between them to exchange

  customers' routes.

  Correct Answer: C

• Question 16:

  Click the exhibit.

  

  Which of the following best describes the output from the Alcatel-Lucent 7750 SR?

  A. RSVP-TE has signaled a VPRN label.

  B. RSVP-TE has signaled both VPRN and LSP labels.

  C. MP-BGP has signaled both VPRN and LSP labels.

  D. MP-BGP has signaled a VPRN label.

  Correct Answer: D

• Question 17:

  A provider core consists of 4 PE and 2 P routers. A fully meshed VPRN service is configured on all 4 PEs, and MPLS LSP-based SDPs are used for the service configuration. How many SDPs must be bound to the VPRN service on each PE?

  A. Two SDPs must be bound to the VPRN service on each PE.

  B. Three SDPs must be bound to the VPRN service on each PE.

  C. Five SDPs must be bound to the VPRN service on each PE.

  D. Twelve SDPs must be bound to the VPRN service on each PE.

  Correct Answer: B

• Question 18:

  Click the exhibit.

  

  For the inter-AS model C VPRN, which of the following is FALSE when an IP packet is sent from 192.1.1.1 to 192.2.1.1?

  A. PE1 pushes two labels on the IP packet and forwards it to ASBR1.

  B. ASBR1 pops the LDP label, swaps the BGP label and forwards the IP packet to ASBR2.

  C. ASBR2 forwards the IP packet with two labels to PE2.

  D. PE2 pops the labels and forwards the unlabeled IP packet to its destination.

  Correct Answer: A

• Question 19:

  Click the exhibit.

  

  For the inter-AS model C VPRN, how many labels does PE1 push on a data packet received from CE1 and destined to CE2?

  A. 1

  B. 2

  C. 3

  D. 4

  Correct Answer: C

• Question 20:

  Which of the following about scaling techniques for route reflectors is FALSE?

  A. Logical Partitioning of route reflectors works best when PEs are partitioned to support different VPRNs.

  B. Logical Partitioning of route reflectors is simple and scalable, but requires more hardware.

  C. Filtering at route reflectors requires either inbound filtering at the route reflector or outbound filtering at the PE routers.

  D. Filtering at route reflectors allows the route reflector to filter routes received from PEs and only accept routes with a certain route distinguisher.

  Correct Answer: D