Alcatel-Lucent 4A0-102 問題集

質問 1：
What kind of BGP attribute is the Local Preference?
A. Well-known discretionary attribute.
B. Optional transitive attribute.
C. Optional non-transitive attribute.
D. Well-known mandatory attribute.
正解：A

質問 2：
Assuming that "client1" and "client2" are directly-connected networks, what is the result of executing the following
BGP export policy?

A. Entry 10 is executed for directly-connected routes, entry 20 for "client1" and entry 30 for "client2".
B. Entries 10 and 20 are executed for "client1", and entries 10 and 30 are executed for "client2".
C. Only entry 10 is executed for "client1" and "client2".
D. Entries 10 and 20 are executed for "client1", and entries 10, 20 and 30 are executed for "client2".
正解：C

質問 3：
Click the exhibit.

Given the following configuration of router R1, what can be said about the function of each of AS 65540s routers?

A. Routers R3 and R4 are route reflectors with clients R1 and R2.
B. Router R1 is a route reflector with clients R3 and R4.
C. Router R1 is a route reflector with clients R2, R3 and R4.
D. Routers R1 and R2 are redundant route reflectors with clients R3 and R4.
正解：B

質問 4：
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 router R6 is configured with
"advertise-external", what is the expected output of "show router bgp routes" when executed on router R5?

A. Option A
B. Option C
C. Option D
D. Option B
正解：B

質問 5：
Click the exhibit.

Router R1 is advertising prefix 192.168.1.0/27 with community "no-export. Which routers will receive an update for
that prefix?
A. Routers R2, R3, R4and R5.
B. Routers R2, R3 and R4 only.
C. Router R2 only.
D. Routers R2 and R3 only.
正解：A

質問 6：
Click the exhibit.

Routers RR1 and RR2 are route reflectors with the same Cluster-ID. How does router RA treat the updates for prefix
192.168.1.0/27 received from routers RR1 and RR2?
A. Router RA prefers the update received from router RR1.
B. Router RA flags both updates as invalid.
C. Router RA prefers the update received from router RR2.
D. Router RA accepts both updates and flags them as used.
正解：B

質問 7：
Which of the following statements regarding BGP FRR is FALSE?
A. BGP FRR can be triggered by BFD.
B. The backup path can use the same next hop as the primary path.
C. The router must receive several BGP routes to compute a backup path.
D. BGP peer-tracking can be used to improve BGP FRR failure detection times.
正解：B

質問 8：
The configuration of an Alcatel-Lucent 7750 SR is given below. Router Rl has established BGP sessions with routers R2
and R3. Which of the following is TRUE?

A. Router R1forms iBGP sessions with routers R2 and R3.
B. Router R1forms eBGP sessions with routers R2 and R3.
C. The types of BGP sessions with routers R2 and R3 cannot be determined.
D. Router R1forms an iBGP session with router R2, and an eBGP session with router R3.
正解：C

質問 9：
Click the exhibit.

Router R1 is a route reflector with clients R2, R5 and R6. Router R3 advertises the prefix 192.168.1.0/27 to routers R5
and R6. Assuming that routers R1, R2 and R4 are configured with "add-paths ipv4 send 2 receive", what is the
expected output of "show router bgp routes" when executed on router R2?

A. Option A
B. Option C
C. Option D
D. Option B
正解：A