Nokia 4A0-101 Exam Questions Free Practice Test

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Questions # 41:

An IS-IS router receives a CSNP that references an older LSP than the one in its database. What action is taken?

Options:

The router sends a copy of the LSP from its database to its neighbor.

The router sends a PSNP to its neighbor describing the LSP in its database.

The router updates its database with the LSP and floods a copy to its other neighbors.

The router sends a PSNP to its neighbor to request the LSP.

Expert Solution

Questions # 42:

Click on the exhibit.

Question # 42

Given the output shown, which router is the ASBR in this network?

Options:

10.10.10.2

10.10.10.3

10.10.10.4

10.10.10.6

There is no ASBR configured in the network.

Expert Solution

Questions # 43:

How does an IS-IS router acknowledge the receipt of an IS-IS LSP on a point-to-point link?

Options:

They are explicitly acknowledged by sending a CSNP to the sender identifying the LSP.

They are implicitly acknowledged as a part of the link-state database synchronization and maintenance procedures.

They are explicitly acknowledged by sending a PSNP to the sender identifying the LSP.

They are implicitly acknowledged by the DIS multicast of CSNPs.

Expert Solution

Questions # 44:

Click on the exhibit.

Question # 44

In the topology shown, router R1 is an ASBR configured to export external routes to OSPF.

Assuming that there are no stub or NSSA networks, which of the following regarding LSAs is TRUE?

Options:

Only router R1 will generate Type 4 LSAs.

Only router R3 will generate Type 4 LSAs.

Routers R3 and R6 will generate Type 4 LSAs.

Routers R1.R3 and R6 will generate Type 4 LSAs.

Expert Solution

Questions # 45:

Click on the exhibit.

Question # 45

Router R2 has a directly connected interface to network 192.168.3.0/24 that is included in IS-IS.

If router R4 redistributes the IS-IS route to 192.168.3.0/24 into OSPF, router R3 will receive two routes to 192.168.3.0/24. Assume that all IS-IS routers are L1/L2 capable and are in the same area.

Which of the following is TRUE?

Options:

Router R3 will install the IS-IS route in it's routing table.

Router R3 will install the OSPF route in it's routing table.

Router R3 will install an OSPF route and an IS-IS route in it's route table.

There is not enough information to answer the question.

Expert Solution

Questions # 46:

Two IS-IS routers are exchanging Hello packets with different authentication types. Which of the following is TRUE?

Options:

Different authentication types are not possible because IS-IS only supports password authentication.

An adjacency will not be formed.

The two routers negotiate the authentication type and then reach the up state.

Only an L2 adjacency will form, as long as both routers are L2 capable.

Expert Solution

Questions # 47:

Which type of LSA packets describe external routes originated within an NSSA area, and to what type are they converted to at the ABR?

Options:

They are Type 7 within the area and are not modified at the ABR.

They are Type 5 within the area and converted to Type 3 at the ABR.

They are Type 5 within the area and are not modified at the ABR.

They are Type 7 within the area and converted to Type 5 at the ABR.

Expert Solution

Questions # 48:

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 does the router take?

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.

A link-state request is performed to increase the sequence number.

Expert Solution

Questions # 49:

Which of the following route types must be manually configured and will not re-route traffic when a link failure occurs in its path?

Options:

A route from IS-IS.

A route from OSPF.

A floating static route.

A static route.

Expert Solution

Questions # 50:

What are the three databases that are maintained by a link-state protocol?

Options:

Neighbor, adjacency, routing.

Neighbor, topology, forwarding.

Topology, routing, forwarding.

Topology, forwarding, traffic classification.

Neighbor, adjacency, forwarding.

Expert Solution

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