Alcatel-Lucent Border Gateway Protocol - 4A0-102 模擬練習
What are the well-known mandatory BGP attributes?
正解: B
Click the exhibit.
Router R2 receives a route to 192.168.1.0/27 from router R4, and sets the local preference to 110. Router R1 receives
a route to 192.168.1.0/27 from router R3, and sets the local preference to 80. Both ASs have a full iBGP mesh. What
path does traffic destined to 192.168.1.0/27 take from router R1?
Router R2 receives a route to 192.168.1.0/27 from router R4, and sets the local preference to 110. Router R1 receives
a route to 192.168.1.0/27 from router R3, and sets the local preference to 80. Both ASs have a full iBGP mesh. What
path does traffic destined to 192.168.1.0/27 take from router R1?
正解: C
What kind of attribute is the aggregator?
正解: A
An autonomous system has 7 routers configured with BGP. How many iBGP sessions are required for a fully meshed
configuration?
configuration?
正解: B
Click the exhibit.
After router A receives the BGP update for the 10.3.3.0/24 prefix, which routers will the route be propagated to?
After router A receives the BGP update for the 10.3.3.0/24 prefix, which routers will the route be propagated to?
正解: C
When implementing a BGP policy on an Alcatel-Lucent 7750 SR, which of the following types of address space would
a typical address plan need to cover?
a typical address plan need to cover?
正解: E
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?
Router R1 is advertising prefix 192.168.1.0/27 with community "no-export. Which routers will receive an update for
that prefix?
正解: D
Which of the following statements regarding route reflectors is TRUE?
正解: C
What kind of BGP attribute is the Multi_Exit_Disc?
正解: B
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?
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?
正解: B
Click the exhibit.
Router R6 is a route reflector with clients R1, R2, R4 and R5. R4 receives three routes from router R6 and is configured
with ECMP 3. Given the following BGP configuration on router R4, how many primary and backup paths will be
present in router R4's BGP routing table?
Router R6 is a route reflector with clients R1, R2, R4 and R5. R4 receives three routes from router R6 and is configured
with ECMP 3. Given the following BGP configuration on router R4, how many primary and backup paths will be
present in router R4's BGP routing table?
正解: C
Click the exhibit.
AS 65100 is advertising 192.168.1.0/27 into BGP. Which of the following AS Paths would the prefix 192.168.1.0/27
contain when viewed on router R8?
AS 65100 is advertising 192.168.1.0/27 into BGP. Which of the following AS Paths would the prefix 192.168.1.0/27
contain when viewed on router R8?
正解: A
Which of the following statements regarding BGP FRR is FALSE?
正解: B
What is the result of configuring the following policy statement as a BGP import policy on the Alcatel-Lucent 7750 SR?
正解: C