Alcatel-Lucent 4A0-102 問題集

質問 1：
Which of the following statements regarding BGP route selection is TRUE?
A. Higher MED is preferred over lower MED.
B. Lower local preference is preferred over higher local preference.
C. Higher origin code is preferred over lower origin code.
D. Lower BGP router ID is preferred over higher BGP router I
正解：D

質問 2：
Which of the following regarding the connections between eBGP peers is TRUE?
A. eBGP peers do not propagate updates learned via iBGP.
B. eBGP peers are usually directly connected to each other.
C. eBGP peers typically use system addresses for session establishment.
D. eBGP peers are managed under a single administration.
正解：B

質問 3：
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 rejected.
B. "client1" routes will be tagged with communities "North" and "West".
C. "client1" routes will be tagged with community "West".
D. "client1" routes will be tagged with community "North".
正解：D

質問 4：
An autonomous system has 7 routers configured with BGP. How many iBGP sessions are required for a fully meshed
configuration?
A. 21
B. 13
C. 42
D. 7
正解：A

質問 5：
Click the exhibit.

Router R2 receives a route to 192.168.4.0/29 from router R4 and sets the local preference to 110. Router R1 receives
the route to 192.168.4.0/29 from router R3, and sets the local preference to 80. There is a full iBGP mesh in AS 65540,
but router R5 only has a physical connection to router R1. Which path does traffic destined to 192.168.4.0/29 take
from router R5?
A. R5-R1-R3-R4-R8
B. R5-R1-R2-R4-R8
C. R5-R2-R4-R8
D. R5-R1-R3-R7-R8
正解：B

質問 6：
Which of the following statements regarding BGP control plane convergence is FALSE?
A. BGP control plane convergence is independent of number of affected prefixes.
B. Core and edge node failure recovery depends on IGP convergence.
C. Edge neighbor failure is detected by the eBGP session timeout.
D. Upon BGP control plane convergence, an optimal path is installed in the FIB.
正解：A

質問 7：
Click the exhibit.

Router R2 is advertising prefix 192.168.1.0/27 with community "no-advertise" towards AS 65002. Which routers
receive an update for that prefix?
A. Routers R3 and R4 only.
B. Router R3 only.
C. Routers R3, R4 and R5 only.
D. Router R2 does not advertise an update for the prefix.
正解：B

質問 8：
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. External link addresses.
B. Loopback or link addresses.
C. External client address space.
D. All of the above.
E. RIR assigned CIDR space.
正解：D

質問 9：
Which of the following regarding BGP confederations is FALSE?
A. Member ASs within a confederation can use route reflection.
B. Within a confederation, each member AS is considered as a stand-alone AS.
C. The entire confederation is viewed as a single AS by an eBGP peer.
D. Member ASs must be fully meshed within a confederation.
正解：D