Data Communication MCQ Computer Science

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  1. Which of the following is not the component of Data Communication?

    a. Message
    b. Sender
    c. Channel
    d. Producer

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d. Producer

  1. Medium or path through which data or message travels between source and destination is

    a. Protocol
    b. Channel or Media
    c. Server
    d. Bandwidth

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b. Channel or Media

  1. Set of rules that needs to be followed by different components of communication system in order to have reliable and successful communication is

    a. Protocol
    b. Channel or Media
    c. Bandwidth
    d. Data Transfer Rate

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a. Protocol

  1. The capacity of a channel is measured in terms of :

    a. Bandwidth
    b. Data Transfer Rate
    c. Both (a) and (b)
    d. None of these

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c. Both (a) and (b)

  1. Bandwidth is measured in

    a. Byte per second
    b. Bit per second
    c. Hertz
    d. Amperes

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c. Hertz

  1. MBps stands for

    a. Mega Bit Per Second
    b. Mega Byte Per Second
    c. Meta Bit Per Second
    d. Meta Byte Per Second

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b. Mega Byte Per Second

  1. Mbps is

    a. Mega Bit Per Second
    b. Mega Byte Per Second
    c. Meta Bit Per Second
    d. Meta Byte Per Second

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a. Mega Bit Per Second

  1. The number of bits transmitted between source and destination in one second is ___________. It is measured in terms of _______

    a. Bandwidth, hertz
    b. Data transfer rate, hertz
    c. Data communication rate, bandwidth
    d. Data transfer rate, bits per second

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d. Data transfer rate, bits per second

  1. A user wants to upload a text document at the rate of 5 pages per 10 seconds. What will be the required data rate of the channel? (Assume that 1 page contains 1200 characters and each character is of 8 bits.)

    a. 6.25kbps
    b. 4.69kbps
    c. 19.2 kbps
    d. None of these

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b. 4.69kbps
hint:
(1200x5x8)/10
=4800 bps
=4800/1024
=4.69kbps

  1. Walkie-talkie used by traffic police is type of

    a. Simplex communication
    b. Half duplex communication
    c. Full duplex communication
    d. None of these

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b. Half duplex communication

  1. Unguided transmission can also be referred as

    a. Wired media
    b. Wireless media
    c. Both (a) and (b)
    d. None of these

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b. Wireless media

  1. When data travels through physical link made of wire/cable between two nodes is referred as

    a. Guided transmission
    b. Wired media
    c. Unguided transmission
    d. Wireless media
    e. Both (a) and (b)

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e. Both (a) and (b)

  1. Which of the following is best suitable for long distance wired data communication?

    a. Twisted pair cable
    b. Co-axial cable
    c. Fiber-Optic cable
    d. Copper cable

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c. Fiber-Optic cable

    1. Look at the image given below and identify the wired transmission media:

      a. Twisted pair cable
      b. Co-axial cable
      c. Fiber optic cable
      d. Copper shielded cable

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b. Co-axial cable

  1. Which of the followings carries data as light

    a. Twisted pair cable
    b. Co-axial cable
    c. Fiber optic cable
    d. All of the above

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c. Fiber optic cable

  1. The number assigned by IEEE to wireless LAN is

    a. 191.656.0.1
    b. 802.11
    c. IPV4
    d. 6404

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b. 802.11

  1. (i) I am two way or bidirectional communication
    (ii) Mobile phone uses me
    (iii) using me data can be sent or received simultaneously at both the end

    Who am I?

    a. Simplex communication
    b. Half Duplex communication
    c. Full Duplex communication
    d. None of these

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c. Full Duplex communication

  1. VoLTE stands for

    a. Voice Over Long Travel Ends
    b. Voice Over Left Turn engagement
    c. Voice Over Long Term Evolution
    d. Voice of Longest Territory Evolution

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c. Voice Over Long Term Evolution

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