Nokia 4A0-106 Online Practice Questions and Exam Preparation

Nokia 4A0-106 Online Questions & Answers

• Question 81:

  At what point does the Route Target become associated with a route?

  A. When the route is first received at the P from the PE
  B. When the route from the CE is populated into the VRF at the PE
  C. When the route from the PE is populated into the VRF at the CE
  D. When the route is propagated from the PE to the CE
  E. When the route is exported into the MP-BGP table from the VRF
  E. When the route is exported into the MP-BGP table from the VRF

• Question 82:

  Which of the following about inter-AS model AVPRN is TRUE?

  A. It is the most scalable of the Inter-AS models.
  B. VRF configuration is not required on the ASBRs.
  C. Most routers that support VPRN functionality do not support model A by default.
  D. It is not necessary to run MPLS at the boundary between autonomous systems.
  D. It is not necessary to run MPLS at the boundary between autonomous systems.

• Question 83:

  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 FALSE?

  A. All traffic exchanged between end-customers is carried over a single CSC VRF.
  B. Customer carrier PE routers residing in different sites must run eBGP between them to exchange customers' routes.
  C. The customer carrier network can be a pure IP network.
  D. MPLS can be used in the customer carrier network to improve scalability.
  B. Customer carrier PE routers residing in different sites must run eBGP between them to exchange customers' routes.

• Question 84:

  A customer has two sites connected to PE-1 and a third site dual-homed to PE-2 and PE-3. If BGP is used as the PE-CE protocol, what is the total number of BGP and MP-BGP sessions required on PE-1 for a functional VPRN service? Assume that route reflection is not used.

  A. 0 BGP and 2 MP-BGP sessions
  B. 2 BGP and 0 MP-BGP sessions
  C. 2 BGP and 1 MP-BGP sessions
  D. 2 BGP and 2 MP-BGP sessions
  E. 1 BGP and 2 MP-BGP sessions
  D. 2 BGP and 2 MP-BGP sessions

• Question 85:

  Which of the following about inter-AS model B VPRN is TRUE?

  A. The ASBRs use MP-eBGP to peer with each other and exchange IPv4 routes between autonomous systems.
  B. The ASBRs use MP-iBGP to peer with PE routers in their autonomous system and exchange VPN-IPv4 routes.
  C. The ASBRs maintain a mapping of labels for IPv4 routes exchanged between autonomous systems.
  D. The ASBRs require per-VPRN configuration.
  B. The ASBRs use MP-iBGP to peer with PE routers in their autonomous system and exchange VPN-IPv4 routes.

• Question 86:

  Click the exhibit.

  

  For the inter-AS model B VPRN, which of the following protocols is used to advertise routes between PE1 and ASBR1?

  A. iBGP
  B. eBGP
  C. MP-iBGP
  D. MP-eBGP
  C. MP-iBGP

• Question 87:

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

• Question 88:

  It is required to prepare the provider core for LDP on an Alcatel-Lucent 7750 SR. Based on the configuration shown below, choose the answer that best describes the given configuration.

  

  A. This configuration is correct and complete
  B. This configuration is correct except that the system interface must be added
  C. This configuration is correct except that the interfaces facing the CE routers must be added.
  D. MPLS configuration is not required
  D. MPLS configuration is not required

• Question 89:

  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 FALSE?

  A. Customer carrier PE routers residing in different sites must run iBGP between them to exchange customers' routes.
  B. MPLS can be used in the customer carrier network to improve scalability.
  C. The customer carrier network can be a pure IP network.
  D. A CSC VPRN is configured on the CSC-CE to forward data packets to the network provider.
  D. A CSC VPRN is configured on the CSC-CE to forward data packets to the network provider.

• Question 90:

  Which of the following about the configuration of an inter-AS model C VPRN is FALSE?

  A. MP-iBGP sessions must be configured between the PE routers in each AS.
  B. LDP must be configured in each AS.
  C. MP-eBGP sessions must be configured between the ASBRs.
  D. The ASBRs must be configured with "enable-inter-as-vpn".
  D. The ASBRs must be configured with "enable-inter-as-vpn".