Alcatel Lucent Border Gateway Protocol Set 1

1.

An Alcatel-Lucent 7750 SR is configured with a local preference of 250. If it receives a BGP update with a local preference of 500, what local preference is sent to its eBGP peers?

100 250 500 None

2.

Which of the following is NOT considered an option of import policies?

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

3.

Which of the following AS Paths will match the regular expression "65100."?

"65100"

"65100 65200''

"65200 65100"

"65100 65250 65200"

4.

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

"client2" routes will be only tagged with communities 'East'' and "South".

"client2" routes will be tagged with community "East".

"client2" routes will only be tagged with community "South".

"client2" routes will be rejected.

5.

Which of the following statements regarding the Originator_ID attribute is TRUE?

The BGP router that originates an update sets the Originator_ID. The Originator_IDis set to the ClusterJD of the advertising router reflector. Both confederation and route reflector topologies use the Originator_ID. A BGP router ignores an update that contains its own BGP router ID as Originator_ID.

6.

Which of the following behaviors regarding the modification of BGP attributes within a confederation is TRUE?

Next Hop is modified when crossing member AS boundaries within a confederation. Origin Code is modified when crossing member AS boundaries within a confederation. AS Path is modified when crossing member AS boundaries within a confederation. None of the well known mandatory attributes is modified within a confederation.

7.

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

It enables a BGP speaker to advertise multiple external routes to iBGP peers. It enables a BGP speaker to advertise its best external route to iBGP peers when the best overall route is internal. It enables a BGP speaker to advertise its best external route to eBGP peers without an import policy. It enables a BGP speaker to advertise its best internal route to eBGP peers without an export policy.

8.

Which of the following is TRUE if a BGP session state is Connect?

BGP is waiting for the TCP connection to be completed. BGP has established a TCP connection, and an Open message has been sent to that neighbor. The BGP session has been interrupted, and a TCP connection is being re-established. BGP has failed to establish a TCP connection to that neighbor, and ConnectRetry has been reset to zero.

9.

Which of the following regarding the connections between eBGP peers is TRUE?

eBGP peers typically use system addresses for session establishment. eBGP peers are managed under a single administration. eBGP peers do not propagate updates learned via iBGP. eBGP peers are usually directly connected to each other.

10.

Which of the following parameters does NOT have to match for an iBGP session to be successfully established?

BGP version number. The local AS number. The Hold Time. Authentication.

Alcatel Lucent Border Gateway Protocol Set 1

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