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SW

Алишер Хасен 7 questions

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Questions in this quiz (7)

  1. 1(Multiple Choice) The metropolitan area network which is located between backbone network and access network consists of ( ). (Select 3 Answers)
    1. AAccess layer
    2. BConvergence layer
    3. CCarrier layer
    4. DCore layer
  2. 2(Multiple Choice) When a backbone network uses dual planes, which of the following statements are true? (Select 2 Answers)
    1. AIn normal situations, the services on the two planes do not affect each other.
    2. BWhen a fault occurs on one plane, the other plane cannot function as the backup of the faulty plane.
    3. CCompared with a dual-plane structure, a hierarchical plane is more reliable
    4. DThe two planes generally carry different services.
  3. 3(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?
    1. AAccess network
    2. BMetropolitan area network (MAN)
    3. CCore network
    4. DBackbone network
  4. 4(Multiple Choice) Which of the following network topologies are the widely used backbone network topologies? (Select 2 Answers)
    1. APlane and Space Hierarchical structure
    2. BMulti-homing structure
    3. CFull Mesh
    4. DPlane Hierarchical structure
  5. 5(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)
    1. AData link layer 1 2 3
    2. BNetwork layer 2 3
    3. CTransport layer 3
    4. DSession layer 1
    5. EPresentation layer 1
    6. FApplication layer 2
  6. 6(Multiple Choice) Which of the following are advantages of layer 2 switch compared with hub? (Select 3 Answers)
    1. AIncrease the collision
    2. BHigher throughput
    3. CHigher port density —
    4. DIsolate collision domains —
  7. 7(Single Choice) Which of the following commands can be used to set Ethernet port so that buffer will not overflow when congestion occurs?
    1. AFlow on
    2. BFlow-control
    3. CFlow control
    4. DEnable flow-control —

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SW
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