Nokia 4A0-102 Exam Questions Free Practice Test

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Questions # 21:

Which of the following regarding BGP Path Identifier is FALSE?

Options:

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

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

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

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

Expert Solution

Questions # 22:

Which of the following is considered a best practice for BGP address planning?

Options:

Advertising external networks into IGP.

Using system addresses for setting up iBGP sessions.

Exportingthe networks associated with the external links of eBGP peers into BGP.

Optimizing BGP route table by exporting IGP routes into BGP.

Expert Solution

Questions # 23:

Click the exhibit.

Question # 23

If router A originates an update for prefix 192.168.0.1/27, what will the update contain when it reaches router B?

Options:

AS Path of 65200, local-preference of 100.

AS Path of 65200,local-preference of None.

Null AS Path, local-preference of 100.

Null AS Path, local-preference of None.

Expert Solution

Questions # 24:

Click the exhibit.

Question # 24

Router R3 is configured with an import policy to reject updates with an ASPath matching the regular expression ".+ 65540". Which of the following regarding updates originating in AS 65540 is TRUE?

Options:

Router R3 rejects all updates originating in AS 65540.

Router R3 accepts updates received from router R1 and rejects updates transited through router R2.

Router R3 accepts updates transited through router R2 and rejects updates received from router R1.

Router R3 accepts updates from both routers R1 and R2.

Expert Solution

Questions # 25:

Which of the following is the minimum requirement for an AS to be considered multi-homed?

Options:

A single connection to a single service provider.

Two connections to a single service provider.

Two connections to twodifferent service providers.

Multiple connections to different service providers.

Expert Solution

Questions # 26:

Which of the following regarding BGP confederations is FALSE?

Options:

The entireconfederation is viewed as a single AS by an eBGP peer.

Within a confederation, each member AS is considered as a stand-alone AS.

Member ASs within a confederation can use route reflection.

Member ASs must be fully meshed within a confederation.

Expert Solution

Questions # 27:

Which of the following regarding route reflectors is TRUE?

Options:

Only the route reflector is configured with acluster id.

There can only be one route reflector in a cluster.

Clients should have iBGP sessions with each other to maintain the mesh.

There can only be one level of route reflectors in the topology.

Expert Solution

Questions # 28:

Router R1, in AS 65540, has the export policy shown below. It advertises an aggregate route to eBGPpeer router R2 in 65550. What is the AS Path of the aggregate route received by router R2?

Question # 28

Options:

65540

65540 1

65540 65540

65550 65540

Expert Solution

Questions # 29:

Click on the exhibit.

Question # 29

AS 65540 is using MPLS to provide BGP shortcuts for its iBGP routing. Which routers must be configured with the "configure router bgp igp-shortcuts rsvp-te" command?

Options:

Routers R6, R1, R4 and R5.

Routers R1and R4.

Routers R1, R2, R3 and R4.

Routers R2 and R3.

Expert Solution

Questions # 30:

What is the function of the Cluster_List attribute?

Options:

It is used for loop detection within the same cluster.

It is used for loop detection between clusters.

It is used for loop detection in a confederation.

It is usedto identify the route reflectors within an AS.

Expert Solution

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