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Nokia Service Routing Architect
4A0-106
Nokia Virtual Private Routed Networks Questions and Answers

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Questions # 11:

Click the exhibit.

Question # 11

For the PE hub and spoke VPRN, on which PE(s) should the VPRN service command target export target: 65100:1 import target: 65100: 2 " be configured?

Options:

PE1

PE2, PE3 and PE4

PE1, PE2, PE3 and PE4

This command is not required for the configuration of this PE hub and spoke VPRN.

Answer

Questions # 12:

Click the exhibit.

Question # 12

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

Options:

This configuration is correct and complete.

This configuration is correct, but the interfaces must also be configured in the "configure router mpls" context.

There is no configuration required for LDP in the core network.

This configuration is correct but Targeted-LDP is also required.

Answer

Questions # 13:

Click the exhibit.

Question # 13

A Carrier Supporting Carrier (CSC) VPRN is configured for a customer carrier who is an Internet Service Provider (ISP). If CE1 sends an IP packet to 192.60.100.1, which of the following is FALSE?

Options:

PE1 pushes an LDP transport label.

CSC-CE1 pops the LDP label and pushes a BGP label.

CSC-PE1 pops the BGP label and pushes two labels: a VPN label and an MPLS transport label.

CSC-PE2 pops the MPLS label and pushes a BGP label.

Answer

Questions # 14:

Complete the following statement. In a VPRN, the label signaled by RSVP-TE is used to ______________.

Options:

Identify the egress PE in the MPLS domain

Signal the egress VPRN ID

Identify the ingress PE in the MPLS domain

Transport route updates between PEs

Answer

Questions # 15:

Which of the following commands may be used on an Nokia 7750 SR to display a network exported locally to BGP on the originating router? (Choose two)

Question # 15

Options:

Show router bgp routes

Show router bgp routes prefix

Show router bgp routes self-originated

Show router bgp routes hunt

Show router bgp neighbor advertised-routes

Answer

D, E

Questions # 16:

Which of the following is a characteristic of inter-AS model C VPRN?

Options:

A data packet destined to a remote AS is encapsulated with three labels within the originating AS.

The ASBR redistributes VPN-IPv4 updates to its ASBR eBGP peers.

PE routers in different ASes exchange IPv4 routes directly between each other using eBGP.

The advertising ASBR assigns a new label to the route before sending it via an MP-eBGP update to its ASBR peer.

Answer

Questions # 17:

Which protocol is used to exchange customer VPRN routes between PE devices?

Options:

OSPF

ISIS

MP-BGP

BGP

Targeted LDP

Answer

Questions # 18:

An advantage of using BGP as the PE-CE protocol is that route policies are no longer required to control the exchange of routes from BGP to MP-BGP.

Options:

True

False

Answer

Questions # 19:

Click the exhibit.

Question # 19

PE3 learns Internet routes via its VRF interface to the Internet peering router and stores them in its Internet VRF. CE1 is connected to the Red VPN and requires Internet access via its Red VRF interface. Which of the following statements do not fulfill this requirement?

Options:

PE1 advertises the Red VPN routes and a default route to PE3.

The Internet VRF on PE3 imports the Red VPN routes advertised by PE1.

PE1 imports all Internet routes and advertises them to CE1 via the Red VRF.

PE3 advertises a default route from its Internet VRF instead of advertising all Internet routes.

Answer

Questions # 20:

Click the exhibit.

Question # 20

For the inter-AS model C VPRN, which of the following statements about a data packet sent from CE1 toCE2isTRUE?

Options:

PE1 sends the data packet with three labels: the bottom label is a service label, the middle label is a BGP label, and the top label is an LDP label.

ASBR1 sends the data packet with one label: the BGP label.

ASBR1 sends the data packet with one label: the service label.

ASBR2 sends the data packet with three labels: the bottom label is a service label, the middle label is a BGP label, and the top label is an LDP label.

Answer

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