Nokia SRA Composite - 4A0-C02 Exam Questions [2026]

QUESTION NO: 1
A router receives two routes from its neighbors: a route from OSPF for 10.0.0.0/24, and a route from BGP for 10.0.0.0/8. Both routes have reachable next hops. Which of the following is TRUE?

A. Only the BGP route is in the route table. B. Only the OSPF route is in the route table. C. Both routes are in the route table. D. None of the routes is in the route table.

Correct Answer: C

QUESTION NO: 2
Click on the exhibit below.

How many LSPs are required in total between Metro A and Metro B if 100 hierarchical VPLS services are deployed across the two metro networks?

A. 100 B. 1 C. 200 D. 2

Correct Answer: D

QUESTION NO: 3
Click on the exhibit below.

Based on the following output what will the vc-id be of any mesh-sdp bound to this service?

A. 100 B. 1514 C. 1000 D. 9000

Correct Answer: C

QUESTION NO: 4
Which OAM tool can be used to dynamically learn the MAC address of a CE device connected to a SAP within a VPLS service?

A. oam mac-populate B. oam svc-ping C. oam cpe-ping D. oam mac-ping E. oam mac-trace

Correct Answer: C

QUESTION NO: 5
What is the SA in the Ethernet frame used for by a layer 2 switch?

A. MAC learning B. Routing table population C. Frame forwarding D. SA filtering

Correct Answer: A

QUESTION NO: 6
In the IEEE 802.1 ag, how are merged services detected?

A. The MIP transmits the service-id for each service. The MIP should only see it's own service-id. B. The MEP sees the CFM frame from a different MEG. C. This is a function of 802,3ah EFM, D. The MEP sees a different service-id in the frame sent by a MEP.

Correct Answer: B

QUESTION NO: 7
What will happen if an update is received with an unrecognized optional non-transitive attribute?

A. The router will accept the update and ignore the attribute. B. The router will accept the update and propagate the attribute. C. The router will accept the update and send a notification. D. The router will not accept the update and send a notification.

Correct Answer: A

QUESTION NO: 8
When a PE node receives a PBB encapsulated frame on a B-VPLS, how does the PE determine which l-VPLS it belongs to?

A. The l-TAG in the l-SID is inspected to determine where the frame should be delivered. B. The l-SID in the l-TAG is inspected to determine where the frame should be delivered. C. When the B-MAC header is stripped the customer MAC address is then looked up in the FDB D. The PE inspects the service label in the MPLS header before stripping the B-MAC header.

Correct Answer: B

QUESTION NO: 9
Which of the following about scaling techniques for route reflectors is FALSE?

A. Filtering at route reflectors requires either inbound filtering at the route reflector or outbound filtering at the PE routers. B. Logical Partitioning of route reflectors works best when PEs are partitioned to support different VPRNs. C. Filtering at route reflectors allows the route reflector to filter routes received from PEs and only accept routes with a certain route distinguisher. D. Logical Partitioning of route reflectors is simple and scalable, but requires more hardware.

Correct Answer: C

QUESTION NO: 10
The policies shown below from the configuration of an Alcatel-Lucent 7750 SR have been created to implement an Extranet VPRN between the main sites of two separate VPRNs. How should these policies be applied?

A. ample Policy 3 should be applied as an export policy on the PE connected to the main site of Customer 2 B. ample Policy 3 should be applied as an export policy on both PEs connected to the main site of Customer 1 and the main site of Customer 2 C. ample Policy should be applied as an export policy on all PEs connected to sites of Customer 1 D. ample Policy should be applied as an export policy on both PEs connected to the main site of Customer 1 and the main site of Customer 2 E. ample Policy should be applied as an export policy on the PE connected to the main site of Customer 1

Correct Answer: E

QUESTION NO: 11
What is the maximum number of VLANs supported on a traditional Layer 2 switch?

A. 8190 B. 4094 C. 32768 D. 131071

Correct Answer: B

QUESTION NO: 12
An Alcatel-Lucent 7750 SR has the BGP configuration shown below. Assuming the router has established BGP sessions to routers R1 and R2, which of the following is TRUE?

A. Both neighbors R1and R2 should be part of AS 65540. B. Both neighbors R1and R2 should be part of AS 65560. C. Neighbor R1should be part of AS 65550, while neighbor R2 should be part of AS 65540. D. Neighbor R1should be part of AS 65550, while neighbor R2 should be part of AS 65560.

Correct Answer: D

QUESTION NO: 13
Which of the following is NOT considered an option of import policies?

A. Filtering NLRI based on AS Path or prefix-lists, B. Setting MED values of route advertisements. C. Preventing unwanted NLRI from entering the AS. D. Modifying the local preference of route advertisements.

Correct Answer: B

QUESTION NO: 14
Click on the exhibit below.

Assume a CE router is connected to the SAP of each PE. The arp cache of all CE routers is empty and the FDB for VPLS 300 is empty. The CE router connected to PE-A initiates a ping towards the CE router connected to PE-C. The ping is successful. Which of the following statements are true? (Choose 2)

A. The FDB on PE-A will contain entries for all CE routers. B. The FDB on PE-B will contain an entry for all CE routers. C. The FDB on PE-C will contain entries for the CE router connected to PE-A and the CE router connected to PE-C. D. The FDB on PE-B will contain an entry for the CE router connected to PE-A.

Correct Answer: C,D