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Nokia 4A0-106 - Nokia Virtual Private Routed Networks

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Total 214 questions

In inter-AS model C VPRN, which of the following about the command "advertise-label ipv4" is TRUE?

A.

This command is required on all PE routers to distribute labeled IPv4 routes directly to PEs in remote AS.

B.

This command is required on the ASBRs to exchange labeled IPv4 routes between the ASs.

C.

This command is required on the route reflectors to exchange customer routes between ASs as labeled IPv4 routes.

D.

This command is required on all PE routers to distribute labeled IPv4 routes to connected CEs.

Click the exhibit.

For the Inter-AS model B VPRN, which of the following about the inter-as-label output on ASBR1 is TRUE?

A.

ASBR1 includes label 131069 in the route update sent to ASBR2.

B.

ASBR1 includes label 131068 in the route update sent to ASBR2.

C.

ASBR1 includes label 131068 in the route update sent to PEL

D.

ASBR1 includes labels 131068 and 131069 in the route update sent to ASBR2.

Click the exhibit.

An Nokia 7750 SR is to be configured as a PE router that supports VPRNs using LDP as the transport protocol. Which of the following best describes this 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.

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?

A.

64496 64497

B.

64496

C.

64497

D.

64497 64497

Click the exhibit.

Routers RR1 and RR2 are configured as route reflectors. For the inter-AS model C VPRN, which of the following about the VPN-IPv4 route advertisement is FALSE?

A.

RR2 advertises the VPN-IPv4 route update of 192.2.1.0/27 to RR1

B.

RR1 advertises the VPN-IPv4 route update of 192.1.1.0/27 to RR2

C.

RR2 advertises the VPN-IPv4 route update of 192.1.1.0/27 to PE2

D.

PE1 advertises the VPN-IPv4 route update of 192.1.1.0/27 to RR1 and ASBRL

Click the exhibit.

For the Inter-AS model B VPRN, which of the route updates for prefix 192.168.1.0/27 is incorrect?

A.

The route update sent from PE1.

B.

The route update sent from PE2.

C.

The route update sent from ASBR1.

D.

The route update sent from ASBR2.

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.

Click the exhibit.

The AS-override method is used to prevent BGP loops in the blue customer VPRN. Which statement about the configuration is TRUE?

A.

the configuration is complete and correct.

B.

'as-override' should be configured under the BGP context.

C.

'as-override' should be configured under the group context.

D.

'as-override' should not be part of this configuration.

Based on the VPRN BGP decision process, which of the following routes is selected first if the command "PE1>config>service>vprn> bgp best-path-selection as-path-ignore" is executed?

A.

The route learned from an eBGP peer.

B.

The route with the lowest Origin.

C.

The route with the lowest originator ID or BGP Identifier.

D.

The route with the shortest AS path.

For the inter-AS model B VPRN, which of the following protocols is used to advertise routes between ASBR1 and ASBR2?

A.

iBGP

B.

eBGP

C.

MP-iBGP

D.

MP-eBGP