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

TRUE?

A.

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 Only a single prefix can be withdrawn at a time.

B.

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 Multiple prefixes can be withdrawn at a time.

C.

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 Only a single prefix can be withdrawn at a time.

D.

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 Multiple prefixes can be withdrawn at a time.

Which of the following prefix-lists is the most specific match for prefixes 192.168.64.1/20 and

192.168.32.5/19?

A.

Prefix 192.168.0.0/17 longer.

B.

Prefix 192.168.0.0/19 longer.

C.

Prefix 192.168.96.0/19 longer.

D.

Prefix 192.168.0.0/18 longer.

Based on the default settings for the Alcatel-Lucent 7750 SR, when a policy change is made and committed, what action is required by the user for the change to take effect?

A.

Execute a command to re-evaluate all routes in the Local-RIB against the configured export policies.

B.

Execute a command to re-evaluate all routes in the RIB-In against the configured import policies.

C.

Execute a command to reset the BGP session with the affected peer or peers.

D.

No further action is required.

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.

Assume all router-IDs are properly configured, and global IPv6 addresses are used to establish eBGP sessions. Which of the following configurations is required on router A so that router B can exchange traffic with router D?

A.

Option A

B.

Option B

C.

Option C

D.

Option D

Which of the following regarding BGP authentication on the Alcatel-Lucent 7750 SR is FALSE?

A.

Authentication is performed before establishing the BGP session.

B.

Authentication can only be configuredon the group or neighbor level.

C.

By default, MD5 authentication is disabled.

D.

Peer authentication may be optionally requested in an open message.

An Alcatel-Lucent 7750 SR receives a route from an iBGP peer with a MED value of 500. What

MED value is sent to eBGP peers?

A.

100

B.

The IGP cost

C.

500

D.

None

What class of attribute is Originator_ID?

A.

Well-known mandatory.

B.

Well-known discretionary.

C.

Optional transitive.

D.

Optional non-transitive.

Which of the following statements about an autonomous system is FALSE?

A.

An AS is a set of routers under a single technical administration.

B.

An AS efficiently advertises all IGP known routes to other ASs.

C.

An AS presents a consistent routing policy to other autonomous systems.

D.

An AS has a 2-byte or 4-byte AS number assigned.

Which of the following statements regarding BGP Fast Reroute is FALSE?

A.

BGP Fast Reroute is triggered by IGP events.

B.

The backup path is pre-computed and installed in the FIB.

C.

BGP Fast Reroute is independent of number of affected prefixes.

D.

BGP Fast Reroute uses the optimal path to the destination.

Click the exhibit.

Assuming a full iBGP mesh in ISP 1, how does router R1 in ISP 1 handle a BGP update received from ISP 2?

A.

The update is sent to router R2 in ISP 1.

B.

The update is sent to routers R2 and R3 in ISP 1.

C.

The update is sent to all routers in ISP 1.

D.

The update is sent to routers R2 and R3 in ISP 1, and to router R3 in ISP 2.

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

A.

"client1" routes will be tagged with communities "North" and "West".

B.

"client1" routes will be tagged with community "West".

C.

"client1" routes will be tagged with community "North".

D.

"client1" routes will be rejected.

Click the exhibit.

Router R1 is a route reflector with clients 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 none of the routers in AS 65540 is configured with "advertise-external", what is the expected output of "show router bgp routes" on router R5?

A.

Option A

B.

Option B

C.

Option C

D.

Option D

Click the exhibit.

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

A.

Router R3 rejects all updates originating in AS 65540.

B.

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

C.

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

D.

Router R3 accepts updates from both routers R1 and R2.

Click the exhibit.

AS 65550 owns the CIDR block 10.64.0.0/12. Router R4 advertises the aggregate 10.64.0.0/12 to AS65540. Which of the following is TRUE regarding the aggregate route advertisement?

A.

The aggregator attribute will not be present, and the atomic aggregate flag will not be set.

B.

The aggregator attribute will not be present, and the atomic aggregate flag will be set.

C.

The aggregator attribute will be present, and the atomic aggregate flag will not be set.

D.

The aggregator attribute will be present, and the atomic aggregate flag will be set.