Nokia 4a0-100 practice test

Nokia Scalable IP Networks Exam


Question 1

On what type of device is a Service Access Point (SAP) defined?
A. On the CE device.
B. On the PE device.
C. On the P device.
D. On both CE and PE devices.

Answer:

B
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Question 2

Which of the following is the location where an ISP aggregates its customer connections and
connects them to
the Internet?

  • A. A demarcation point
  • B. An Internet exchange point
  • C. A regional Internet registry
  • D. A point of presence
Answer:

B

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Question 3

Which of the following best describes an Autonomous System (AS)?
A. A group of routers that are under one administrative authority.
B. A group of networks that make up the Internet.
C. A group of networks from different organizations exchanging routes using IGP routing protocols.
D. Any organization that has a connection to the Internet.

Answer:

A
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Question 4

Which of the following is a characteristic of Distance Vector protocols?

  • A. Routers periodically send a copy of their table to their neighbors.
  • B. Routers send triggered updates to the entire network.
  • C. Routers know the entire network topology.
  • D. Routers use Shortest Path First algorithm to calculate the optimum paths.
Answer:

A

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Question 5

Which of the following does a link-state protocol use when choosing the best path to a destination
network?

  • A. Cost
  • B. Round-trip time
  • C. Hop-count
  • D. Route preference
Answer:

A

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Question 6

Which of the following describes a default route?

  • A. It is used when forwarding control plane data to the local CPM.
  • B. It is used when there is no other known route for a given packet’s destination.
  • C. It matches a specific /32 host address with the least cost to the destination.
  • D. It is used when forwarding multicast and broadcast packets.
Answer:

B

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Question 7

Which of the following is part of the IP forwarding process?
A. The router does a longest prefix match lookup.
B. The router checks the source address in the MAC FDB.
C. The router assigns a cost to each of its interfaces.
D. The router advertises routes to its neighbors.

Answer:

B
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Question 8

Which of the following is a characteristic of the system IP address?

  • A. It is used as a L3 broadcast address.
  • B. It is a logical interface address.
  • C. It can have any prefix value.
  • D. It is used for layer-2 forwarding.
Answer:

B

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Question 9

Which of the following statements about router interfaces on a Nokia 7750 SR is FALSE?

  • A. They can be used by routers to interconnect subnets.
  • B. They can be used in pairs on the same subnet for redundancy.
  • C. They can be logical or physical.
  • D. The system interface exists by default.
Answer:

B

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Question 10

Which of the following statements about route summarization is FALSE?

  • A. It reduces the number of routes advertised by the router.
  • B. It allows a single route table entry to represent multiple subnetworks
  • C. It can reduce the size of the routing table in neighboring routers.
  • D. It advertises more specific routes for routing advertisement stability.
Answer:

D

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