Computer MCQs with answers Page - 147

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Q. Which of the following is an advantage to using fiber optics data transmission?

  • (A) resistance to data theft
  • (B) fast data transmission rate
  • (C) low noise level
  • (D) all of above

A

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Q. Which of the following terms is just the collection of networks that can be joined together ?

  • (A) virtual private network
  • (B) LAN
  • (C) intranet
  • (D) extranet

A

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Q. Communication circuits that transmit data in both directions but not at the same time are operating in

  • (A) a simplex mode
  • (B) all the options
  • (C) a full duplex mode
  • (D) a half duplex mode

A

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Q. Which multiplexing technique transmits ariatog signals ?

  • (A) Asynchronous TDM
  • (B) Synchronous TDM
  • (C) FDM
  • (D) Both (B)and (C)

A

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Q. An example of an analog communication method is

  • (A) laser beam
  • (B) microwave
  • (C) voice grade telephone line
  • (D) all of the above

A

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Q. Multiprogramming systems:

  • (A) Are easier to develop than single programming systems
  • (B) Execute more jobs in the same time period
  • (C) Execute each job faster
  • (D) Are used only one large mainframe computers.

A

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Q. A(n) __ is a private corporate network, used exclusively by company employees.

  • (A) intranet
  • (B) local area network
  • (C) peer-to-peer
  • (D) Internet

A

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Q. The __ is a device that connects n inputstom outputs,

  • (A) Cross point
  • (B) Crossbar
  • (C) RAM
  • (D) Modem

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Q. The transmission signal coding method of Tl carrier is called

  • (A) Bipolar
  • (B) NRZ
  • (C) Manchester
  • (D) Binary

A

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Q. If you wish to extend the length of the network without having the signal degrade, you would use a

  • (A) repeater
  • (B) switch
  • (C) gateway
  • (D) router

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