Nokia 4A0-106 Online Practice Questions and Exam Preparation

Nokia 4A0-106 Online Questions & Answers

• Question 141:

  What is the minimum number of Route Distinguishers required to implement an overlapping VPRN involving 5 different customers?

  A. 1
  B. 3
  C. 5
  D. 7
  E. 10
  C. 5

• Question 142:

  Which of the following about BGP loops in a VPRN environment is FALSE?

  A. Traditional BGP loop detection mechanisms may detect a loop in the VPRN scenario, which in fact is not present.
  B. The Alcatel-Lucent 7750 SR accepts routes containing AS_PATH loops by default.
  C. When the CLI command "config>router>bgp# loop-detect discard-route" is used, the Alcatel-Lucent 7750 SR sends a notification to the remote peer and drops the BGP session.
  D. In VPRN implementations where the CE-PE protocol is BGP, it is possible for separate sites of the same customer to use the same BGP autonomous system number.
  C. When the CLI command "config>router>bgp# loop-detect discard-route" is used, the Alcatel-Lucent 7750 SR sends a notification to the remote peer and drops the BGP session.

• Question 143:

  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
  B. 64512

• Question 144:

  For the Inter-AS model VPRN, which of the following is FALSE when CE2 sends an IP packet to 192.168.1.1?

  

  A. PE2 pushes two labels on the IP packet and forwards it to ASBR2.
  B. ASBR2 forwards the IP packet with one label to ASBR1.
  C. ASBR1 label-switches the packet and forwards it with one label to PE1.
  D. PE1 forwards an unlabeled IP packet to CE1.
  C. ASBR1 label-switches the packet and forwards it with one label to PE1.

• Question 145:

  Click the exhibit.

  

  Community lists are configured for the PE hub and spoke VPRN. Which communities should be exported by the VPRN service on PE1?

  A. "Spoke.Sites" and "Hub_Site"
  B. "Spoke_Sites"
  C. "Hub_Site"
  D. No communities should be exported
  C. "Hub_Site"

• Question 146:

  Click the exhibit.

  

  For the extranet VPRN and community lists shown, which of the following communities will be included in the export policy applied to VPRN 20 on router R2?

  A. "Blue-Only"
  B. "Blue-Only" and "Blue-Green"
  C. "Green-Only"
  D. "Extranet-VPN-Green"
  E. "Blue-Green"
  C. "Green-Only"

• Question 147:

  On an Alcatel-Lucent 7750 SR, which CLI command displays the Route Target(s) associated to a prefix?

  A. Show router bgp routes
  B. Show router route-table summary
  C. Show router bgp routes vpn-ipv4 detail
  D. Show router route-table
  C. Show router bgp routes vpn-ipv4 detail

• Question 148:

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

• Question 149:

  Which of the following about the control plane in Carrier Supporting Carrier (CSC) VPRN is FALSE?

  A. End-customer routes are populated in the network provider CSC VRF.
  B. The customer carrier does not learn any network provider internal routes.
  C. The network provider learns customer carrier PE system addresses.
  D. Routes exchanged between the customer carrier and the network provider are labeled.
  A. End-customer routes are populated in the network provider CSC VRF.

• Question 150:

  Which of the following about VPRN Outbound Route Filtering (ORF) is FALSE?

  A. Resources consumed at the sender and receiver PEs can be reduced by using BGP ORF.
  B. BGP ORF allows a receiving PE to filter out unnecessary inbound routes.
  C. A PE indicates its ORF capabilities to its neighbor PE in a BGP Open message.
  D. BGP ORF is most effective when a large number of routes is being exchanged between two peers, and most routes are filtered out on arrival.
  B. BGP ORF allows a receiving PE to filter out unnecessary inbound routes.