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Ezonexam has a Class C network and you need ten subnets. You wish to have as many addresses available for hosts as possible. Which one of the following subnet masks should you use?

  • A.255.255.255.192
  • B.255.255.255.224
  • C.255.255.255.240
  • D.255.255.255.248
  • E.None of the above
试题出自试卷《2017年思科认证模拟试题及答案三》
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    • A.SWEzonexam1(config-if)# switchport port-security maximum 1
    • B.SWEzonexam1(config)# mac-address-table secure
    • C.SWEzonexam1(config)# access-list 10 permit ip host
    • D.SWEzonexam1(config-if)# switchport port-security violation shutdown
    • E.SWEzonexam1(config-if)# ip access-group 10
  2. Which of the following statements correctly describe the differences between half-duplex and full-duplex Ethernet? (Select two answer choices.)

    • A.Full-duplex Ethernet uses CSMA/CD to prevent collisions.
    • B.Half-duplex Ethernet uses a loopback circuit to detect collisions.
    • C.A full-duplex Ethernet card allows 20Mbps for data transmission.
    • D.Full-duplex Ethernet makes use of two pairs of wires for data.
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  3. The LAN needs are expanding at the Ezonexam corporate office, which is quickly growing. You are instructed to enlarge the area covered by a single LAN segment on the Ezonexam network.

    Which of the following are layer 1 devices that you can use? (Choose all that apply.)

    • A.A switch
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  4. Why is full-duplex Ethernet superior to its single-duplex counterpart? (Select two answer choices.)

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  5. The Ezonexam network Topology is displayed in the exhibit below:

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    • A.10 Mbps Ethernet
    • B.56 kbps serial
    • C.100 Mbps Ethernet
    • D.1,544 Mbps serial
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  6. With regard to Ethernet media access methods, which of the following are true?

    (Choose all that apply.)

    • A.A device waits for an electronic signal before transmitting.
    • B.A device listens and waits until the media is not busy before transmitting.
    • C.All devices on an Ethernet segment see data that passes on the network medium.
    • D.Only the sender and the receiver devices see data that passes on the network medium.
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  7. The Ezonexam network administrator needs to determine what LAN devices to install on the Ezonexam network. What are two advantages of using Layer 2 Ethernet switches over hubs? (Choose two)

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  10. Ezonexam has a Class C network and you need ten subnets. You wish to have as many addresses available for hosts as possible. Which one of the following subnet masks should you use?

    • A.255.255.255.192
    • B.255.255.255.224
    • C.255.255.255.240
    • D.255.255.255.248
    • E.None of the above