Alcatel-Lucent 4A0-101 問題集

質問 1：
In IS-IS database synchronization, each router compares each LSP described in the received CSNPs with the LSPs in its own database. Which of the following actions is taken if the database contains a newer copy of the LSP?
A. The router sends a copy of the LSP from its database to its neighbor
B. The router sends a PSNP to its neighbor to request the LSP.
C. The router updates its database with the LSP and floods a copy to its otherneighbors.
D. The router sends a PSNP to its neighbor describing the LSP in its database.
正解：A

質問 2：
Which of the following is optional when configuring IS-IS on the Alcatel-Lucent 7750 SR?
A. Enabling IS-IS
B. Specifying an area address
C. Configuring level capabilities
D. Configuring IS-IS interfaces
正解：C

質問 3：
Which three IS-IS PDU types are used for database synchronization?
A. LSPs. Hellos, CSNPs
B. LSPs, PSNPs, Hellos
C. Hellos, CSNPs, PSNPs
D. LSPs, CSNPs, PSNPs
正解：D

質問 4：
Click on the exhibit.

What triggers convergence of the routing protocol when the link between switch 1 and switch 2 goes down?
A. Convergence will not be triggered because switches cannot run routing protocols between them.
B. Convergence is triggered when the adjacency between routers R1 and R2 drops as a result of hello timeouts.
C. Convergence is triggered when an LSA is sent from router R1 to router R2 to indicate that the link is down.
D. Convergence is triggered when the physical interfaces between routers R1 and R2 go down.
E. Convergence is triggered when the switches notify the routers about the link-state info.
正解：B

質問 5：
Click the exhibit button.

Router R2 advertises the network 192.168.3.0/24 to router R1 via OSPF. A route policy has been constructed to discard the route on router R1; however, it is not working. What is the problem?
A. The policy "reject" should be set for import rather than export.
B. This is not possible because OSPF cannot use import policies.
C. The policy was likely not "committed" after creation.
D. The prefix list reject should be "192.168.3.0/16 exact".
E. Router R1 should be configured as an OSPF "asbr".
正解：B

質問 6：
Which of the following statements regarding distance vectors protocols are true?
(Choose two answers).
A. OSPF and IS-IS are distance vector protocols.
B. RIPv1, RIPv2, and BGP are distance vector protocols.
C. Routers that participate in distance vector routing protocols maintain full knowledge of distant routers and how they interconnect
D. Routing tables are exchanged between neighbors; however, no routing table is transmitted beyond the immediate neighbor.
E. Distance vector protocols use the Dijkstra SPF algorithm.
正解：B,D

質問 7：
What is the value of the protocol discriminator used to denote IS-IS protocol information?
A. 87
B. 89
C. 85
D. 83
正解：D

質問 8：
Which of the following is NOT a characteristic of RIPv1?:
A. Broadcast advertisement
B. 30 second network updates
C. Poison Reverse
D. Classless routing
正解：D

質問 9：
Click on the exhibit.

Which of the following best describes the format of data traffic sent to the server as it exits from the PC?
A. The destination IP address will be the system IP address of router R1 and the destination MAC address will be the MAC address of the router R1 port connected to the PC.
B. The destination IP address will be the IP address of the server and the destination MAC address will be the MAC address of the server.
C. The destination IP address will be the IP address of the server and the destination MAC address will be the MAC address of the router R1 port connected to the PC.
D. The destination IP address will be the IP address of the router R1 port connected to the PC and the destination MAC address will be the MAC address of the router R1 port connected to the PC.
正解：C