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4A0-102 NokiaBorder Gateway Protocol Free Practice Exam Questions (2025 Updated)

Prepare effectively for your Nokia 4A0-102 NokiaBorder Gateway Protocol 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 149 questions

What isthe result of configuring the following policy statement as a BGP import policy on theNokia7750 SR?

A.

All BGP routes are accepted.

B.

All routes matching prefix lists "List-1" and "List-2" are rejected.

C.

BGP routes matching prefix lists "List-1" or "List-2" are rejected.

D.

BGP routes matching prefix lists "List-1" and "List-2" are rejected.

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.

Both routes are in the route table.

C.

None of the routes is in the route table.

D.

Only the OSPF route is in the route table.

AnNokia7750 SR receives a route from an eBGP peer with a MED value of 500. What

MED value is sent to iBGP peers?

A.

100

B.

The IGP cost

C.

500

D.

None

Click the exhibit.

Router R1 is a route reflector withclients 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 router R6 is configured with "advertise-external", what is the expected output of "show router bgp routes" when executed on router R1?

A.

Option A

B.

Option B

C.

Option C

D.

Option D

Click theexhibit.

Which of the following is a valid confederation configuration for Router R2?

A.

Option A

B.

Option B

C.

Option C

D.

Option D

Which of the following statements regarding BGP FRR is FALSE?

A.

The router must receive several BGP routes to compute a backup path.

B.

BGP FRR can be triggered by BFD.

C.

The backup path can use the same next hop as the primary path.

D.

BGP peer-tracking can be used to improve BGP FRR failure detection times.

Which of the following statements regarding BGP route selection is TRUE?

A.

Lower local preference is preferred over higher local preference.

B.

Higher MED is preferred over lower MED.

C.

Higher origin code is preferred over lower origin code.

D.

Lower BGP router ID is preferred over higher BGP router ID.

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.

Tomaximize control plane scalability.

Click the exhibit.

Router R6 is a route reflector with clients R1, R2, R4 and R5. R4 receives three routes from router R6 and is configured with ECMP 3. Given the following BGP configuration on router R4, how many primary and backup paths will be present in router R4's BGP routing table?

A.

Two primary paths andone backup path.

B.

One primary path and two backup paths.

C.

Three primary path and one backup path,

D.

Three primary paths.

Which of the following regarding BGP Path Identifier is FALSE?

A.

Path-ID is a four-octet identifier pre-pended to the NLRI field of aBGP update.

B.

Path-ID is an optional transitive attribute used to advertise multiple paths.

C.

Path-ID uniquely identifies each path advertised to a neighbor.

D.

A BGP speaker that re-advertises a route must generate its own Path-ID.

What will happen if an update is received with an unrecognized optional non-transitive attribute?

A.

The router will accept the update and send a notification.

B.

The router will not accept the update and send a notification.

C.

The router will accept the update and ignore the attribute.

D.

The router will accept the update and propagate the attribute.

Click the exhibit.

AS 65550 owns CIDR block 10.64.0.0/12. Router R6 advertises the aggregate 10.64.0.0/12 toAS 65541 with "as-set" enabled. Which of the following is TRUE regarding the aggregate route received by router R7?

A.

The AS Path is set to 65540, and the Atomic Aggregate flag is set.

B.

The AS Path is set to 65540 65550, and the Atomic Aggregate flag is set.

C.

The AS Path is set to 65540 65550, and the Atomic Aggregate flag is not set.

D.

The AS Path is set to 65550, and the Atomic Aggregate flag is not set.

AnNokia7750 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.

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

A.

Option A

B.

Option B

C.

Option C

D.

Option D

Click the exhibit.

Routers RR1 and RR2 are route reflectors with the same Cluster-ID. When the update for prefix

192.168.1.0/27 is received at router RA2, what are the Originator_ID and Cluster_List attributes?

A.

Originator_ID of RR1; and Cluster_List of 10.16.10.1.

B.

Originator_ID of RX; and Cluster_List of 10.16.10.1.

C.

Originator_ID of RR1; and the Cluster_List is not set.

D.

Neither the Originator_ID nor the Cluster_List is set.

Click the exhibit.

AS 65100 isadvertising 192.168.1.0/27 into BGP. Which of the following AS Paths would the prefix 192.168.1.0/27 contain when viewed on router R8?

A.

65200 (65206 65202) 65100

B.

(65206 65202)65100

C.

65250 (65206 65202) 65100

D.

65200 65100

Click the exhibit.

Router R2 receives a route to 192.168.4.0/29 fromrouter 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 pathdoes 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

Click the exhibit.

Assuming that none of the routers within AS 65200 is configured with next-hop-self", what will the BGP update for the 192.168.0.1/27 prefix contain when it arrives at router B?

A.

AS Path of 65200 65100, Next Hop of router A.

B.

AS Path of 65200 65100, Next Hop of router E.

C.

AS Path of 65100, Next Hop of router E.

D.

AS Path of 65100, Next Hop of router A.

AnNokia7750 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.

showrouter bgp routes

C.

show router bgp routes hunt

D.

show router bgp neighbor received-routes

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

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Total 149 questions
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