Nokia 4A0-113 Exam Practice Test Instant Access

Question 1

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

AOSPF uses TCP, so the protocol number is 6.

BOSPF uses UDP, so the protocol number is 17.

COSPF does not use IP.

DOSPF has its own protocol number of 89.

Answer : D

Question 2

When an OSPF adjacency is stuck in the "ExchStart" state, what is the most likely cause?

AThe MTU does not match on both interfaces

BOSPF is not enabled on one of the routers

CThe Router ID is the same on both routers

DA OSPF Hello has not been received from the neighbor

Answer : A

Question 3

What are the three databases maintained by a Link State Protocol?

ANeighbor, adjacency, route table

BNeighbor, topology, forwarding

CTopology, routing, forwarding

DThere are only two databases: adjacency and topology

Answer : B

Question 4

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

AMTU mismatch

BIncorrect subnet mask

CSystem interface not included in OSPF

DArea ID not the same

EDifferent metric set on each end of the link

FRouter ID not defined

Answer : A, B, D

Question 5

Click the exhibit button.

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

AThe adjacency state is two way because both routers have received a database description packet.

BThe adjacency is in the exchange state. The next step is to exchange link state request and link state update packets.

CThe adjacency is in the ex start state. The routers have exchanged database description packets, but still have to negotiate the starting sequence number.

DThe adjacency state is full. The routers are exchanging database description packets to notify each other that all link state advertisements have been received.

Answer : C

Question 6

Which of the LSA types stay within an OSPF area and are not exported outside of the area? (Choose all that apply)

ARouter LSA

BNetwork LSA

CSummary Network LSA

DSummary Router LSA

Answer : A, B

Question 7

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

ASource IP address

BTCP source port

CPrefix list

DProtocol type

Answer : D

Nokia OSPF Routing Protocol 4A0-113 Exam Practice Test