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4A0-C02 Nokia SRA Composite Exam Free Practice Exam Questions (2025 Updated)

Prepare effectively for your Nokia 4A0-C02 Nokia SRA Composite Exam certification with our extensive collection of free, high-quality practice questions. Each question is designed to mirror the actual exam format and objectives, complete with comprehensive answers and detailed explanations. Our materials are regularly updated for 2025, ensuring you have the most current resources to build confidence and succeed on your first attempt.

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Total 639 questions

Click the exhibit.

Router R6 is a route reflector for clients R1, R2 and R5 with local preferences 100, 200 and 500 respectively. Router R3 advertises prefix 192.168.1.0/27 to routers R1, R2 and R5 which are configured with advertise-external. Routers R4 and R6 are both configured with "add-paths ipv4 send 2 receive". Which routes to 192.168.0.1/27 is router R4 expected to have in its BGP routing table?

A.

The routes from routers R1, R2 and R5.

B.

The routes from routers R1and R2.

C.

The routes from routers R2 and R5.

D.

Two routes are chosen at random and advertised to router R4.

What are the well-known mandatory BGP attributes?

A.

Origin, Next Hop and Local Preference.

B.

Local preference, AS Path and Next Hop.

C.

Aggregator, Next Hop and AS Path.

D.

AS Path, Next Hop and Origin.

Which of the following best describes the purpose of advertise-external?

A.

It enables a BGP speaker to advertise multiple external routes to iBGP peers.

B.

It enables a BGP speaker to advertise its best external route to iBGP peers when the best overall route is internal.

C.

It enables a BGP speaker to advertise its best external route to eBGP peers without an import policy.

D.

It enables a BGP speaker to advertise its best internal route to eBGP peers without an export policy.

An Alcatel-Lucent 7750 SR receives two updates for the same route with local preferences 200 and 300, respectively. What local preference is sent to eBGP peers?

A.

100

B.

200

C.

300

D.

None

Click the exhibit.

Assume all router-IDs are properly configured, and IPv6 link-local addresses are used to establish all eBGP sessions. Given the following iBGP configuration on router A, what is the Next Hop for prefix 2001:DB8:A:401::1/128 on router B?

A.

The IPv6 link-local address of the router D interface towards router A.

B.

The IPv6 link-local address of the router A interface towards router D.

C.

The IPv6 global address of router A.

D.

The IPv6 global address of router D.

Click the exhibit.

Router R2 receives a route to 192.168.4.0/29 from router R4 and sets the local preference to 110.

Router R1 receives the route to 192.168.4.0/29 from router R3, and sets the local preference to

80. There is a full iBGP mesh in AS 65540, but router R5 only has a physical connection to router R1. Which path does traffic destined to 192.168.4.0/29 take from router R5?

A.

R5-R2-R4-R8

B.

R5-R1-R3-R4-R8

C.

R5-R1-R2-R4-R8

D.

R5-R1-R3-R7-R8

When an Alcatel-Lucent 7750 SR receives a BGP route with an AS Path loop, what action is taken by default?

A.

The route is ignored.

B.

The route is flagged as invalid and placed in the LOC-RIB.

C.

The route is flagged as invalid and placed in the RIB-In.

D.

The route is flagged as invalid and placed in the RIB-Out.

Two Alcatel-Lucent 7750 SRs are established BGP peers with the following add-paths configuration:

R1: configure router bgp add-paths ipv4 send 4 receive

R2: configure router bgp add-paths ipv4 send 2

If router R1 advertises three routes for a given prefix X, how many routes is router R2 expected to have for prefix X?

A.

None

B.

2

C.

3

D.

4

An Alcatel-Lucent 7750 SR is configured with a policy to export directly-connected networks to BGP. Which of the following commands verifies that the export was successful?

A.

show router route-table

B.

show router bgp routes

C.

show router bgp routes hunt

D.

show router bgp neighbor received-routes

How are policy direction and data flow related on the Alcatel-Lucent 7750 SR?

A.

Import policies affect ingress data flow.

B.

Export policies affect ingress data flow.

C.

Both import and export policies affect ingress data flow.

D.

Policy direction and data flow are independent.

Click the exhibit.

Routers RR1 are RR2 are redundant route reflectors for clients R3 and R4. Which of the following is a valid configuration on router R3?

A.

Option A

B.

Option B

C.

Option C

D.

Option D

Click on the exhibit.

AS 65540 is using MPLS to provide BGP shortcuts for its iBGP routing. AS 65541 is advertising prefix 192.168.1.0/27 into BGP. Which routers have the BGP update for the advertised prefix in their BGP table?

A.

Routers R1, R2, R3, R4 and R5.

B.

Routers R1and R4 only.

C.

Routers R1, R2, R3 and R4 only.

D.

Routers R1, R4 and R5 only.

Which of the following statements regarding the Internet is FALSE?

A.

It is a global network relying on interconnections provided by Internet service providers.

B.

It is a continuous and interconnected set of public IP networks, advertised and shared across the globe.

C.

It is a settlement-free global network that provides interconnection between Internet service providers.

D.

It is a network that allows any Internet service provider to reach every other Internet service provider in the world.

Click the exhibit.

Router R1 is a route reflector with clients R2, R5 and R6. Prefixes advertised by router R5 have a local preference of 200. Router R3 advertises the prefix 192.168.1.0/27 to routers R5 and R6.

Assuming that none of the routers in AS 65540 is configured with "advertise-external", what is the expected output of "show router bgp routes" on router R5?

A.

Option A

B.

Option B

C.

Option C

D.

Option D

Which of the following is TRUE if the local state of BGP is OpenConfirm?

A.

The local system has received a Keepalive message and is ready to exchange updates.

B.

The local system is exchanging Update messages with its neighbor.

C.

The local system has sent a Keepalive message to its neighbor and is waiting to receive one back.

D.

The local system has sent an Open message to its neighbor and is waiting to receive one back.

Which of the following statements about an autonomous system is FALSE?

A.

An AS is a set of routers under a single technical administration.

B.

An AS efficiently advertises all IGP known routes to other ASs.

C.

An AS presents a consistent routing policy to other autonomous systems.

D.

An AS has a 2-byte or 4-byte AS number assigned.

An Alcatel-Lucent 7750 SR is configured with an export policy to redistribute its directly-connected networks into BGP. Which of the following databases contains the routes for these networks?

A.

The routes are in the RIB-In.

B.

The routes are in the Loc-RIB.

C.

The routes are in the RIB-Out.

D.

The routes are not in any of the BGP databases.

Click the exhibit.

Router R1 is a route reflector with clients R2, R5 and R6. Router R3 advertises the prefix 192.168.1.0/27 to routers R5 and R6. Assuming that routers R1, R2 and R4 are configured with "add-paths ipv4 send 2 receive", what is the expected output of "show router bgp routes" when executed on router R2?

A.

Option A

B.

Option B

C.

Option C

D.

Option D

Click the exhibit.

Router R2 receives a route to 192.168.1.0/27 from router R4, and sets the local preference to 110. Router R1 receives a route to 192.168.1.0/27 from router R3, and sets the local preference to 80. Both ASs have a full iBGP mesh. What path does traffic destined to 192.168.1.0/27 take from router R1?

A.

R1-R3-R8

B.

R1-R2-R4-R8

C.

R1-R3-R4-R8

D.

R1-R2-R4-R3-R8

Assuming that "client1" and "client2" are directly-connected networks, what is the result of executing the following BGP export policy?

A.

Only entry 10 is executed for "client1" and "client2".

B.

Entries 10 and 20 are executed for "client1", and entries 10 and 30 are executed for "client2".

C.

Entries 10 and 20 are executed for "client1", and entries 10, 20 and 30 are executed for

"client2".

D.

Entry 10 is executed for directly-connected routes, entry 20 for "client1" and entry 30 for "client2".

Why is a full mesh of iBGP peers required?

A.

To ensure proper route propagation inside a transit AS.

B.

To ensure that all routers are directly connected.

C.

To ensure that all routers run iBGP inside a transit AS.

D.

To maximize control plane scalability.

Click on the exhibit below.

The MDU attached to this PE has been configured with active/standby SDP's configuration option has been configured for the PE to recognize that this SDP is in standby mode?

A.

On the PE the endpoint has been configured with "supress-standby-signalling"

B.

On the PE the endpoint has been configured with "no supress-standby-signalling"

C.

On the MDU the endpoint has been configured with "supress-standby-signalling"

D.

On the MDU the endpoint has been configured with "no supress-standby-signalling1

MC-LAG is only supported on network ports.

A.

TRUE

B.

FALSE

Click on the exhibit below.

Which ports will become root ports? (Choose 3)

A.

Bridge B 1/1/3

B.

Bridge B 1/1/2

C.

Bridge C 1/1/2

D.

Bridge C 2/1/1

E.

Bridge D 1/1/1

F.

Bridge D 1/1/3

G.

Bridge E 1/1/1

Click on the exhibit below.

Assume PE-B expects avian tag as part of the RFC 4762 (Martini) encapsulation. How must PE-A be configured?

A.

The port that the SAP belongs to must have the correct ether type configured.

B.

The SAP must be configured with the right VLAN tag.

C.

The SDP VC type must be configured as type VLAN and the correct vlan-vc-tag must be specified.

D.

All of the above.

Which physical topology is NOT commonly deployed in today's VPLS networks?

A.

Ring topologies.

B.

Metro-to-metro topologies

C.

H-VPLS topologies.

D.

Partial-mesh topologies.

Which protocol is used to signal the status of the active links between the PE and the CE in MC-LAG?

A.

MSTP

B.

MCLAG

C.

LACP

D.

DHCP

E.

A proprietary protocol

If a management VPLS is administratively disabled what will be the status of the associated user VPLS SAPs?

A.

Regular semantics will apply. It will be as if the SAP doesn't belong to a management VPLS.

B.

All user VPLS SAPs will be disabled/pruned.

C.

It is not possible to administratively disable a management VPLS.

D.

Spanning tree will be automatically enabled on the user VPLS SAPs.

Two management VPLSs have been created. mVPLS 1 and mVPLS 2. Two user VPLS services exist. uVPLS 10 and uVPLS 20. What command can be used to determine which management VPLS is managing uVPLS 10?

A.

show stp 10

B.

show service vpls 1 stp

C, show service id 10 stp

C.

show service id 1 stp or show service id 2 stp

Which of the following are required for an operational mesh-sdp binding for bidirectional traffic when signaling is enabled within the SDP? (Choose 3)

A.

LDP must be enabled.

B.

RSVP must be enabled.

C.

An SDP must be configured on the far-end.

D.

Service MTU must match.

E.

SDP ID must match.

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