Zusammenfassung der Ressource
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(Multiple Choice) The metropolitan area network which is located between backbone network and access network consists of ( ). (Select 3 Answers)
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Access layer
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Convergence layer
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Carrier layer
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Core layer
Frage 2
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(Multiple Choice) When a backbone network uses dual planes, which of the following statements are true? (Select 2 Answers)
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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.
Frage 3
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(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?
Frage 4
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(Multiple Choice) Which of the following network topologies are the widely used backbone network topologies? (Select 2 Answers)
Frage 5
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(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)
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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
Frage 6
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(Multiple Choice) Which of the following are advantages of layer 2 switch compared with hub? (Select 3 Answers)
Frage 7
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(Single Choice) Which of the following commands can be used to set Ethernet port so that buffer will not overflow when congestion occurs?
Antworten
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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 —