16102506
Description
Quiz by Алишер Хасен, updated more than 1 year ago
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Created by Алишер Хасен
about 6 years ago
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Question 1
Question
(Multiple Choice) The metropolitan area network which is located between backbone network and access network consists of ( ). (Select 3 Answers)
Answer
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Access layer
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Convergence layer
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Carrier layer
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Core layer
Question 2
Question
(Multiple Choice) When a backbone network uses dual planes, which of the following statements are true? (Select 2 Answers)
Answer
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In normal situations, the services on the two planes do not affect each other.
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When a fault occurs on one plane, the other plane cannot function as the backup of the faulty plane.
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Compared with a dual-plane structure, a hierarchical plane is more reliable
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The two planes generally carry different services.
Question 3
Question
(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?
Answer
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Access network
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Metropolitan area network (MAN)
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Core network
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Backbone network
Question 4
Question
(Multiple Choice) Which of the following network topologies are the widely used backbone network topologies? (Select 2 Answers)
Answer
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Plane and Space Hierarchical structure
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Multi-homing structure
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Full Mesh
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Plane Hierarchical structure
Question 5
Question
(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)
Answer
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Data link layer 1 2 3
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Network layer 2 3
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Transport layer 3
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Session layer 1
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Presentation layer 1
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Application layer 2
Question 6
Question
(Multiple Choice) Which of the following are advantages of layer 2 switch compared with hub? (Select 3 Answers)
Answer
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Increase the collision
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Higher throughput
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Higher port density —
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Isolate collision domains —
Question 7
Question
(Single Choice) Which of the following commands can be used to set Ethernet port so that buffer will not overflow when congestion occurs?
Answer
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Flow on
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Flow-control
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Flow control
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Enable flow-control —
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