Алишер Хасен
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Алишер Хасен
Created by Алишер Хасен over 5 years ago
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Question 1 of 7

1

(Multiple Choice) The metropolitan area network which is located between backbone network and access network consists of ( ). (Select 3 Answers)

Select one or more of the following:

  • Access layer

  • Convergence layer

  • Carrier layer

  • Core layer

Explanation

Question 2 of 7

1

(Multiple Choice) When a backbone network uses dual planes, which of the following statements are true? (Select 2 Answers)

Select one or more of the following:

  • In normal situations, the services on the two planes do not affect each other.

  • When a fault occurs on one plane, the other plane cannot function as the backup of the faulty plane.

  • Compared with a dual-plane structure, a hierarchical plane is more reliable

  • The two planes generally carry different services.

Explanation

Question 3 of 7

1

(Single Choice) In a complete IP network, which of the following networks does a Layer 2 network under the service access control point belong to?

Select one of the following:

  • Access network

  • Metropolitan area network (MAN)

  • Core network

  • Backbone network

Explanation

Question 4 of 7

1

(Multiple Choice) Which of the following network topologies are the widely used backbone network topologies? (Select 2 Answers)

Select one or more of the following:

  • Plane and Space Hierarchical structure

  • Multi-homing structure

  • Full Mesh

  • Plane Hierarchical structure

Explanation

Question 5 of 7

1

(Multiple Choice) Which layers in OSI reference model belong to upper layer, also called as host layer and are responsible for data transmission and providing interface for user? (Select 3 Answers)

Select one or more of the following:

  • Data link layer 1 2 3

  • Network layer 2 3

  • Transport layer 3

  • Session layer 1

  • Presentation layer 1

  • Application layer 2

Explanation

Question 6 of 7

1

(Multiple Choice) Which of the following are advantages of layer 2 switch compared with hub? (Select 3 Answers)

Select one or more of the following:

  • Increase the collision

  • Higher throughput

  • Higher port density —

  • Isolate collision domains —

Explanation

Question 7 of 7

1

(Single Choice) Which of the following commands can be used to set Ethernet port so that buffer will not overflow when congestion occurs?

Select one of the following:

  • Flow on

  • Flow-control

  • Flow control

  • Enable flow-control —

Explanation

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