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Questions # 61:

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?

Options:

The link state information is not populated in the database but is forwarded to all neighbors

The link state information already in the database is overwritten and the age is reset

The link state information is not populated in the database and an acknowledgement is sent

The link state information is regarded as old and nothing is done.

Expert Solution

Questions # 62:

Which of the following statements regarding the election of the designated router (DR) by OSPF routers are true? (Choose two)

Options:

The router with the lowest priority is the DR.

The router with the highest priority is the DR.

If priorities are the same, the DR is chosen based on the lowest RID.

If priorities are the same, the DR is chosen based on the highest RID.

Expert Solution

Questions # 63:

What causes an adjacency to change from "Init" to "Two Way"?

Options:

When a Link State Update is received in response to a Link State Request

When a router receives a Hello packet from a neighbor that contains its router id in the neighbor list

When OSPF neighbors exchange Database Descriptor packets

When a Link State Acknowledgement is received in response to a Link State Update

Expert Solution

Questions # 64:

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

Options:

Expert Solution

Questions # 65:

Exhibit

Question # 65

Given the two configurations shown, identify the two incorrect statements below: (Choose two)

Options:

Both routers will generate OSPF Hello packets.

The system interface is missing in one configuration so OSPF will not operate correctly.

The interface type settings differ, but OSPF will still operate correctly.

Metric values differ, but this does not prevent OSPF operation.

Expert Solution

Questions # 66:

How many databases does a Link State routing protocol use?

Options:

One

Two

Three

Four

Expert Solution

Questions # 67:

What are some of the characteristics of Alcatel-Lucent's implementation of non-stop routing? (Choose two)

Options:

No protocol extensions required

Only supported by OSPF and IS-IS

Transparent to routing neighbors

Uses Graceful Restart to inter-operate with other vendors

Expert Solution

Questions # 68:

Choose the Distance Vector Protocols from the list below:

Options:

OSPF

RIPv1

RIPv2

IS-IS

Expert Solution

Questions # 69:

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

Options:

Show ospf neighbors

Show router ospf neighbors

Show router ospf adjacency

Show ospf adjacency

Expert Solution

Questions # 70:

Which of the statements below best describes the pseudonode in an IS-IS network?

Options:

The DIS creates a logical node to represent a group of routers on the same non-broadcast network; this node is the pseudonode

The DIS creates a logical node to represent the topological database of the backbone network in an IS-IS network; this node is the pseudonode

The DIS creates a logical node to represent a broadcast sub-network; this node is the pseudonode

The DIS creates a logical node to represent the complete topology of an IS-IS area; this node is the pseudode

Expert Solution

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