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Nokia 4A0-C04 - Nokia NRS II Composite Exam: OSPF version

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Total 298 questions

Click the exhibit button.

What triggers convergence of the routing protocol when the link between switch 1 and switch 2 goes down?

A.

Convergence is triggered when the adjacency between routers R1 and R2 drops as a result of Hello timeouts. At this point, both routers R1 and R2 re-compute their link state database and send updates to their adjacent routers. Once the process is complete for all routers, the networks have converged.

B.

Convergence is triggered when the physical interfaces between routers R1 and R2 go down. At this point, both routers R1 and R2 re-compute their link state database and send updates to their adjacent routers. Once the process is complete for all routers, the networks have converged.

C.

Convergence will not be triggered because switches cannot run routing protocols between them.

D.

Convergence is triggered when the switches notify the routers about the link state information. At this point, both routers R1 and R2 re-compute their link state database and send updates to their adjacent routers. Once the process is complete for all routers, the networks have converged

E.

Convergence is triggered when an LSA is sent from router R1 to router R2 to indicate that the link is down. At this point, both routers R1 and R2 re-compute their link state database and send updates to their adjacent routers. Once the process is complete for all routers, the networks have converged.

What are the default Hello and Dead timer intervals for OSPF on the Nokia 7750 SR?

A.

5 and 15 seconds

B.

10 and 30 seconds

C.

5 and 20 seconds

D.

10 and 40 seconds

Click the exhibit.

Routers RR1 and RR2 are route reflectors with the same Cluster-ID. How does router RA treat the updates for prefix 192.168.1.0/27 received from routers RR1 and RR2?

A.

Router RA prefers the update received from router RR1.

B.

Router RA prefers the update received from router RR2.

C.

Router RA flags both updates as invalid.

D.

Router RA accepts both updates and flags them as used.

What type of LSA is used to flood information about prefixes from one OSPF area to other attached areas?

A.

Type 1

B.

Type 3

C.

Type 4

D.

Type 7

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

A.

IP packets sent to an IP multicast address.

B.

Ethernet frames sent to an Ethernet multicast address.

C.

IP packets sent to an IP unicast address.

D.

UDP packets sent to an IP multicast address.

Click the exhibit button.

A static route is created on router R1 "using the "static-route 0.0.0.0/0 next-hop 10.3.3.2" command. What command can be used to test the static route on an Nokia 7750 SR?

A.

ping static 10.5.5.5

B.

ping static 0.0.0.0/0

C.

ping 10.5.5.5

D.

ping 0.0.0.0

What command will show the OSPF neighbors, and their status on the Nokia 7750 SR?

A.

Show ospf neighbors

B.

Show router ospf neighbors

C.

Show router ospf adjacency

D.

Show ospf adjacency

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

A.

When a link state update is received in response to a link state request.

B.

When a router receives a Hello packet that contains its own router ID in the neighbor list from a neighbor.

C.

When a router receives a database description packet from a neighbor.

D.

When a link state acknowledgement is received in response to a link state update.

A router in AS 65100 receives two BGP routes. The first route is for 138.1.1.0/24 with an AS Path of 65200 65300, Local Preference of 100, MED of 100, and router ID 10.10.10.10. The second route is for 138.1.0.0/16 with an AS Path of 65500 65300, Local Preference of 150, MED of 100, and router ID 10.1.1.1. Assuming all other attributes are equal, which route would be used to forward an IP packet with destination IP address 138.1.1.1?

A.

The first BGP route.

B.

The second BGP route.

C.

Both routes are used.

D.

It is impossible to determine without the value of the origin code for both routes.

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

A.

Not so stubby area

B.

Stub area

C.

Backbone area

D.

Normal area