Nokia 4A0-106 Exam Questions Instant Access

Question 1

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

AEnd-customer routes are populated in the network provider CSC VRF.

BThe customer carrier does not learn any network provider internal routes.

CThe network provider learns customer carrier PE system addresses.

DRoutes exchanged between the customer carrier and the network provider are labeled.

Answer : A

Question 2

Which of the following about the configuration of BGP Site of Origin (SoO) is TRUE?

AEach PE must implement a policy to apply a unique SoO attribute to the set of routes received from each customer site.

BA different BGP extended community is used on each PE that connects to a single site.

CAn import policy on the PE rejects a route if the attached SoO matches the configured value.

DImport and export policies are applied on the PEs under the global BGP context.

Answer : A

Question 3

Click the exhibit.

For the inter-AS model A VPRN. BGP is used as the PE-CE routing protocol. Which of the following statements about the control plane operation is TRUE?

APE1 sends an IPv4 update for prefix 192.168.1.0/27 via MP-BGP to ASBR1.

BASBR1 sends an IPv4 update for prefix 192.168.1.0/27 to ASBR2.

CASBR1 transforms an IPv4 update for prefix 192.168.1.0/27 to a VPN-IPv4 route; allocates VPN label V1 and sends the update to ASBR2.

DASBR2 accepts a VPN-IPv4 update from ASBR1, then sends the update to PE2 via MP-BGP.

Answer : B

Question 4

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

AASBRs exchange labeled IPv4 routes for the system addresses of PE routers.

BIt requires a route reflector to be configured in each AS for successful operation.

CVPN-IPv4 routes are neither maintained nor distributed by the ASBRs.

DPE routers in different ASes exchange VPN-IPv4 routes directly between each other using MP-eBGP.

Answer : B

Question 5

In a Carrier Supporting Carrier (CSC) VPRN, which of the following is NOT a benefit to the network provider?

AThe solution scales as the number of VPNs offered by the customer carriers increases.

BThe solution scales as the number of end-customer routes increases.

CThere is no need to manage end-customer services.

DThe solution scales as the number of serviced customer carriers increases.

Answer : D

Question 6

In a VPRN that uses MPLS transport tunnels, which of the following is NOT configured on the PE device?

AMP-BGP for exchanging customer routes with other PEs.

BA routing protocol for exchanging customer routes with the CE.

CA label signaling protocol for defining transport tunnels between the PE and CE.

DMPLS for exchanging labels with other provider core devices.

Answer : C

Question 7

Click the exhibit.

AS-override is configured on PE1 to eliminate the BGP loops. What is the expected AS-Path in the VPN-IPv4 route 64496:10:192.168.2.0/27 received by PE1?

A64496 64497

B64496

C64497

D64497 64497

Answer : C

Nokia Virtual Private Routed Networks 4A0-106 Exam Questions