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Nokia
SRC Certification
4A0-C02
Nokia SRA Composite Exam Questions and Answers

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Viewing questions 16-30 out of questions

Questions # 16:

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

Options:

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

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

The network provider learns customer carrier PE system addresses.

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

Answer

Questions # 17:

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

Options:

The ASBRs use MP-eBGP to peer with each other and exchange IPv4 routes between autonomous systems.

The ASBRs use MP-iBGP to peer with PE routers in their autonomous system and exchange VPN-IPv4 routes.

The ASBRs maintain a mapping of labels for IPv4 routes exchanged between autonomous systems.

The ASBRs require per-VPRN configuration.

Answer

Questions # 18:

Which of the following commands on an Alcatel-Lucent 7750 SR will verify connectivity for a VPRN service when issued from the PE?

Question # 18

Options:

oam vprn-ping source destination

vprn-ping router

Ping source

Answer

Questions # 19:

AVPLS spoke SDP is terminated on a VPRN service. The remote side of the spoke SDP is operationally * Down' with a flag of ' Service MTU Mismatch'. Which command can you use on an Alcatel-Lucent 7750 SR to show the signaled operational VC-MTU?

Options:

show service id base

show router Idp bindings

show service id sdp detail

show service id vc-mtu

Answer

Questions # 20:

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

Question # 20

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 # 21:

Which command is used to generate the output from an Alcatel-Lucent 7750 SR shown below?

Question # 21

Options:

Show service 3

Show service id 3

Show service 3 base

Show service id 3 base

Show service 3 detail

Show service id 3 detail

Answer

Questions # 22:

When configuring the CE with the selected CE-PE routing protocol on an Alcatel-Lucent 7750 SR, which of the following statements is true? (Choose three.)

Question # 22

Options:

The protocol is configured under the config>service context

The protocol is configured under the global router context

The interface leading to the PE is defined as a protocol neighbor

The routing protocol used must be the same as the routing protocol used at other CE-PE locations in the same VPN.

A routing policy may or may not be required depending on the routing requirements and routing protocol

Answer

B, C, E

Questions # 23:

Click the exhibit.

Question # 23

A Carrier Supporting Carrier (CSC) VPRN is configured for a customer carrier who is a BGP/MPLS service provider. Which of the following describes the routes present in PE1's global routing table?

Options:

The system address of PE2 is present. The system addresses of CSC-PE1 and CSC-PE2 are not present.

The system addresses of PE2, CSC-PE1 and CSC-PE2 are all present.

The system address of CSC-CE1, the route 192.168.10.1, and the route 192.168.20.1 are all present.

The system address of PE2 and the route 192.168.20.1 are present.

Answer

Questions # 24:

On a PE router, the VRF table for VPRN 10 contains: one local route, two BGP routes learned from a local CE. and three tunneled routes learned from a remote site. If we execute the command "configure service vprn 10 maximum-routes 2 log-only" on this PE router, how many routes are expected to be in the VRF?

Options:

Five routes: the local route, the two BGP routes learned from the local CE, and two tunneled routes.

Six routes: the local route, the two BGP routes learned from the local CE, and three tunneled routes.

Two routes: the local route and one tunneled route.

Three routes: the local route and two tunneled routes.

Two routes: the local route and one BGP route learned from the local CE.

Answer

Questions # 25:

Click the exhibit.

Question # 25

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 # 26:

Which of the following is not an available option for Route Distinguisher assignment?

Options:

One Route Distinguisher per VRF route

One Route Distinguisher per VRF

One Route Distinguisher per VRF per site

One Route Distinguisher per VPN

Answer

Questions # 27:

Click the exhibit.

Question # 27

For the inter-AS model B VPRN, which of the following is the correct BGP configuration on ASBR1?

Question # 27

Options:

Option A

Option B

Option C

Option D

Answer

Questions # 28:

What operation does a P device perform when it receives a labeled packet for a VPRN service?

Options:

It forwards the packet based on the label signaled by MP-BGP.

It decrements the TTL and forwards the packet based on the inner label.

It swaps the outer label then forwards the packet.

The P router does not perform any operations on labeled packets.

Answer

Questions # 29:

In a provider core consisting of 6 PE and 4 P routers, what is the minimum number of BGP sessions required in total for correct operation of VPRN services?

Options:

Answer

Questions # 30:

For Carrier Supporting Carrier (CSC) VPRN, which of the following is NOT applicable to both types of customer carriers: BGP/MPLS service providers and Internet service providers?