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4A0-102
NokiaBorder Gateway Protocol Questions and Answers

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Questions # 1:

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

Question # 1

Options:

All BGP routes are accepted.

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

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

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

Answer

Questions # 2:

Click the exhibit.

Question # 2

Routers RR1 and RR2are route reflectors with clients R1x and R2x, respectively. Routers RR1

and RR2 are non-clients of each other, and router R1 is a non-client of both. Which of the following regarding BGPsessions in AS 65540 is TRUE?

Options:

Router R1must have at least one BGP session to each of routers R1x and R2x.

Routers R1, RR1 and RR2 must be fully meshed.

Routers R1x and R2x must have at least one BGP session between them.

Routers R1x as well asrouters R2x must be fully meshed.

Answer

Questions # 3:

Click the exhibit.

Question # 3

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?

Options:

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

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

AS Path of 65100, Next Hop of router E.

AS Path of 65100, Next Hop of router A.

Answer

Questions # 4:

AnNokia7750 SR receives two updates for the same route with local preferences 200 and 300, respectively. What local preference is sent to eBGP peers?

Options:

100

200

300

None

Answer

Questions # 5:

Which of the following regarding the withdrawal of routes from one BGP speaker to another is

TRUE?

Options:

An update message is used. Only a single prefix can be withdrawn at a time.

An update message is used. Multiple prefixes can be withdrawn at a time.

A withdraw message is used. Only a single prefix can be withdrawn at a time.

A withdraw message is used. Multiple prefixes can be withdrawn at a time.

Answer

Questions # 6:

Which of the following statements about the BGP Advertise External feature is FALSE?

Options:

It modifies the BGPadvertisement logic.

It improves convergence times and allows for better load sharing.

It allows a router to advertise multiple external paths for a single prefix.

It supports both IPv4 and IPv6.

Answer

Questions # 7:

The configuration of anNokia7750 SR is given below. Router Rl has established BGP sessions with routers R2 and R3. Which of the following is TRUE?

Question # 7

Options:

Router R1forms an iBGP session with router R2, and aneBGP session with router R3.

Router R1forms iBGP sessions with routers R2 and R3.

Router R1forms eBGP sessions with routers R2 and R3.

The types of BGP sessions with routers R2 and R3 cannot be determined.

Answer

Questions # 8:

Which of the following statements regarding BGP Add-Paths is FALSE?

Options:

Add-Paths allows non-best paths to be advertised to a peer.

Add-Pathscapabilities are exchanged between peers after the BGP session is established.

A BGP speaker must advertise the capability to receive multiple paths from its peer.

A BGP speaker must advertise the capability to send multiple paths to its peer.

Answer

Questions # 9:

A router in AS 65100 receives two BGP routes. The first route is for138.1.1.0/24 with an AS Path of 65200 65300, Local Preference of 100, MED of 100, and router ID 10.10.10.10. The second route is for 138.1.0.0/16 with an AS Path of 65500 65300, Local Preference of 150, MED of 100, and router ID 10.1.1.1. Assuming all other attributes are equal, which route would be used to forward an IP packet with destination IP address 138.1.1.1?

Options:

The first BGP route.

The second BGP route.

Both routes are used.

It is impossible to determine without the value of the origin code for both routes.

Answer

Questions # 10:

AnNokia7750 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?

Question # 10