Nokia 4A0-113 問題集

質問 1：
An OSPF router receives an update in which the sequence number, age, and checksum are the same as the entry already in the topological database. What action is taken by the router?
A. The link state information is not populated in the database and an acknowledgement is sent
B. The link state information already in the database is overwritten and the age is reset
C. The link state information is not populated in the database but is forwarded to all neighbors
D. The link state information is regarded as old and nothing is done.
正解：A

質問 2：
Click the exhibit button.

What is the command to configure a static route on the Nokia 7750 SR router R1 to reach the network behind router R2?
A. configure router static-route 139.120.121.0/24 next-hop 138.120.199.2
B. configure router static-route 138.120.199.2/24 next-hop 138.120.199.1
C. configure router static-route 139.120.121.0/24 next-hop 139.120.121.2
D. configure router static-route 139.120.121.0/24 next-hop 138.120.199.1
正解：A

質問 3：
What is the default preference value for a static route in the Nokia 7750 SR router?
A. 0
B. 10
C. 15
D. 5
正解：D

質問 4：
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.
A. The OSPF external preference
B. The IS-IS Level 2 internal preference
C. The IS-IS Level 1 external preference
D. The IS-IS Level 2 external preference
E. The OSPF internal preference
F. The IS-IS Level 1 internal preference
正解：A,F

質問 5：
Which of the following statements apply to link state protocol behavior? Choose three answers.
A. An adjacency database is maintained by each router.
B. Routers broadcast the entire route table to all neighbors.
C. The topological database is the same for all routers in a single area.
D. Information about directly connected links is sent to all neighbors.
E. The sequence number for an update is incremented as it is flooded from router to router.
正解：A,C,D

質問 6：
When an OSPF adjacency is stuck in the "ExchStart" state, what is the most likely cause?
A. A OSPF Hello has not been received from the neighbor
B. The Router ID is the same on both routers
C. The MTU does not match on both interfaces
D. OSPF is not enabled on one of the routers
正解：C

質問 7：
What is the source IP address in an OSPF update?
A. The unicast IP address of the interface the update is sent on
B. 224.0.0.6
C. The system address of the router.
D. 224.0.0.5
正解：A

質問 8：
Choose the Distance Vector Protocols from the list below:
A. IS-IS
B. OSPF
C. RIPv2
D. RIPv1
正解：C,D