4A0-101 Exam Questions

What causes an adjacency to change from down to two ways?

Click the exhibit button. In the topology shown, router R1 is an ASBR configured to export external routes to OSPF. Assuming that there are no stub networks, which of the following...

Which of the following commands can be used to display the number of SPF computations that have been performed on a router?

Which of the following statements describe the major features of OSPF? Choose two answers.

Click the exhibit button. What can you deduce from the show command on router R6?

Click the exhibit button. In the topology shown, router R1 is an ASBR configured to export external routes to OSPF. How many type 4 LSAs will be present in the network?

Which of the following conditions will prevent an OSPF adjacency from reaching the full state? Choose three answers.

Click the exhibit button. The following command sequence is executed on router R2: A:R2# configure router ospf router-id 10.10.10.99 A:R2# configure router router-id 10.10.10.66 On...

In an OSPF Hello packet, which of the following fields must match for all neighbor routers on the segment? Choose three answers.

Click the exhibit button. The OSPF adjacency between routers R3 and R1 is down. What is the problem?

Click the exhibit button. Given the topology and the show commands, and assuming that router R2 advertises all of its loopbacks into OSPF, what is the correct router R1 configurati...

In which of the following types of areas does an OSPF router not set the E bit in its Type 1 LSA?

Click the exhibit button. In the topology shown, router R1 is an ASBR configured to export external routes to OSPF. Which of the following statements regarding the OSPF LSAs in the...

What is the protocol number for OSPF in the IP header?

Click the exhibit button. Which of the following would correctly configure routers R2, R3, and R4?

When are virtual links used in OSPF?

Which of the following statements regarding area border routers in an OSPF network is true?

Which of the following correctly lists the 5 OSPF packet types?

Which of the following OSPF area types are supported by the Alcatel ucent 7750 SR? Choose two answers.

If OSPF is used in a multi-area OSPF network, which of the following statements regarding route summarization is true?

Click the exhibit button. The OSPF packets shown have been exchanged between two neighbors. What state is the OSPF adjacency in?

Which of the following best describes the type of packets used by OSPF routers to exchange updates on a point-to-point link?

Which of the following statements best describes an OSPF type 3 LSA?

Which of the following types of networks are supported on an Alcatel-Lucent 7750 SR for OSPF? Choose two answers.

If routers R1 and R2 have a Level 1 and Level 2 IS-IS adjacency, which of the following statements is true? Choose two answers.

Which of the following is an optional parameter when configuring IS-IS protocol on a router?

Which of the following features are supported by IS-IS? Choose three answers.

Which of the following statements regarding IS-IS LSPs is true?

Click the exhibit button. In the IS-IS network shown, router R1 has been configured to summarize network 20.20.1.0/24 and 20.20.2.0/24 as 20.20.0.0/16. Which router's routing table...

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

What value should the AFI be set to for locally administered addressing?

Click the exhibit button. For the IS-IS network shown, and assuming point-to-point links, what adjacencies will router R1 establish?

Which of the following are similarities between OSPF and IS-IS? Choose two answers.

Which of the following statements regarding IS-IS Hello packets are true? Choose two answers.

Which of the following types of network topologies are supported by IS-IS on the Alcatel-Lucent 7750 SR? Choose two answers.

Click the exhibit button. What is the state of adjacency?

At what point is the LSP SRM flag cleared when an LSP is sent on an IS-IS point-to-point link? Choose two answers.

Click the exhibit button. Given the diagram below, what path will traffic follow from router R6 to router R3, and from router R3 to router R6, if IS-IS is the routing protocol? The...

When IS-IS elects a DIS, what is used as the tie breaker on an Alcatel-Lucent 7750 SR, if the priorities are the same?

Two IS-IS L1/L2 routers are in the same area on the same Ethernet segment. How many adjacencies will be formed between them?

In IS-IS, which of the following statements regarding an L1/L2 router is false?

How are IS-IS LSPs sent on point-to-point links?

Given the NSAP address of 49.0012.1234.1234.1234.00, what area does the IS-IS router reside in?

Which type of IS-IS router is summarization most likely to be configured on?

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...

An Alcatel ucent 7750 SR receives a route via an IS-IS LSP with internal reach ability, and receives the same route via an OSPF type 5 LS A. If al protocol preferences are default,...

Click the exhibit button. If router R2 redistributes the IS-IS route to 192.168.3.0/24 into OSPF, router R3 preference of these two routes? Choose two answers.

Which of the following cannot be used as a matching criterion in route policy statements?

How many databases does a Link State routing protocol use?

In an IP datagram, which field identifies the receiving application