4A0-101 by Alcatel-Lucent Actual Free Exam Q&As

Question 1

What types of routers can an IS-IS L1 router form adjacencies with? Pick all that apply.

A. L2 routers in other areas B. L1/L2 router in the same area C. L1 routers in other areas D. L2 routers in the same area E. L1 routers in the same area F. L1/L2 routers in other areas

Discussion 0

Correct Answer: B,E Vote an answer

Question 2

Click on the exhibit.

OSPF is operational on all links in the network diagram, all links are the same cost, and all routers are configured with an ECMP value of 4. Router R4 advertises the prefix 192.168.3.0/24 into OSPF.
How many entries for prefix 192.168.3.0/24 will be in router R5's routing table?

Discussion 0

Correct Answer: C Vote an answer

Question 3

An OSPF adjacency is stuck in the exstart state. What is the most likely cause?

A. The interfaces are configured as point-to-point on one side and broadcast on the other. B. The router ID is the same on both routers. C. OSPF is not enabled on one of the routers. D. The MTU does not match on both interfaces. E. An OSPF Hello has not been received from the neighbor.

Discussion 0

Correct Answer: D Vote an answer

Question 4

WhichOSPFv3LSA is similar to the OSPFv2 Type 5 LSA?

A. AS External B. Intra-Area Prefix C. Inter-Area Router D. Inter-Area Prefix

Discussion 0

Correct Answer: A Vote an answer

Question 5

WhichOSPFv3 LSA type is similar in function to the OSPFv2 Type 4 LSA?

A. Intra-Area Prefix B. Link C. Inter-Area Router D. Inter-Area Prefix

Discussion 0

Correct Answer: C Vote an answer

Question 6

Click on the exhibit.

What value would be expected in the state field?

A. 2-Way B. Down C. Exchange D. Up

Discussion 0

Correct Answer: B Vote an answer

Question 7

Which of the following statements are true? Choose two answers.

A. Route filtering is the process of attaching data path filters to router interfaces. B. Redistribution is needed for exchanging routes from one routing protocol to another. C. Route filtering involves deciding whether to permit or deny certain routing updates from being accepted into, or distributed out of, the route-selection process. D. OSPF routers that are redistributing routes must be configured as ABRs. E. Route redistribution is only needed if Internet access is a requirement.

Discussion 0

Correct Answer: B,C Vote an answer

Question 8

Click on the exhibit.

The OSPF adjacency between routers R1 and R3 does not come up.
Which of the following is a possible solution to the problem?

A. Stub must be configured on Area 0 of router R1 and Area 1 of router R3. B. Stub must be configured on Area 1 of router R1, and removed from Area 1 on router R3. C. Area 1 of router R3 should be Area 0, in order to connect via stub to router R1. D. Stub must be configured on Area 1 of router R1 and Area 1 of router R3.

Discussion 0

Correct Answer: D Vote an answer

Question 9

Click on the exhibit.

The route table on router R2 shows the system address of router R5 but it does not show any of the interfaces from the non-OSPFarea.
What may be causing this?

A. Router R1 needs to have an import policy added to it. B. Router R5 does not have an export policy for these prefixes. C. Router R1 needs to have an export policy added to it. D. 'asbr' is missing from router R1's configuration.

Discussion 0

Correct Answer: B Vote an answer

Question 10

How does an IS-IS router acknowledge the receipt of an IS-IS LSP on a point-to-point link?

A. They are explicitly acknowledged by sending a PSNP to the sender identifying the LSP. B. They are implicitly acknowledged by the DIS multicast of CSNPs. C. They are implicitly acknowledged as a part of the link-state database synchronization and maintenance procedures. D. They are explicitly acknowledged by sending a CSNP to the sender identifying the LSP.

Discussion 0

Correct Answer: A Vote an answer

Question 11

What is the value of the protocol discriminator used to denote IS-IS protocol information?

A. 89 B. 87 C. 85 D. 83

Discussion 0

Correct Answer: D Vote an answer

Question 12

What command will show the OSPF neighbors, and their status on the Alcatel-Lucent 7750 SR?

A. Show ospf neighbors B. Show router ospf neighbors C. Show ospf adjacency D. Show router ospf adjacency

Discussion 0

Correct Answer: B Vote an answer

Question 13

Which of the following is a type of authentication that is supported by OSPF on the Alcatel-Lucent 7750 SR?

A. Two factor authentication B. MD5 authentication C. Challenge handshake authentication protocol (CHAP) D. Extensible authentication protocol (EAP)

Discussion 0

Correct Answer: B Vote an answer

Question 14

Click on the exhibit.

The numbers beside the links are the metrics for that link.
Given the diagram, what path will traffic follow from router R1 to router R7,and from router R7 to router R1, if IS-IS is the routing protocol?

A. Router R1 to router R7 will follow (R1-R3-R5-R6-R7). Router R7 to R1 will follow (R7R6-R4-R2-R1) B. Router R1 to router R7 will follow (R1-R2-R4-R6-R7). Router R7 to R1 will follow (R7R6-R5-R3-R1) C. Router R1 to router R7 will follow (R1-R3-R5-R6-R7). Router R7 to R1 will follow (R7R6-R5-R3-R1) D. Router R1 to router R7 will follow (R1-R2-R4-R6-R7). Router R7 to R1 will follow (R7R6-R4-R2-R1)

Discussion 0

Correct Answer: A Vote an answer

Question 15

Which of the following statements regarding the IS-IS CSNP is false?

A. CSNPs are advertised before an adjacency is formed with another router. B. CSNPs are used to maintain consistency in the link state database. C. There are two types of CSNPs: Level 1 and Level 2. D. CSNPs are advertised after an adjacency is formed with another router.

Discussion 0

Correct Answer: A Vote an answer

Alcatel-Lucent Interior Routing Protocols and High Availability - 4A0-101 Exam Practice Test