Computer Knowledge Practice Question and Answer

Q:

“World Wide Web" is made by: 

1910 0

  • 1
    Tike Berners Lee
    Correct
    Wrong
  • 2
    Tim Berners Lee
    Correct
    Wrong
  • 3
    Tom Berners Lee
    Correct
    Wrong
  • 4
    Tin Berners Lee
    Correct
    Wrong
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Answer : 2. "Tim Berners Lee "

Q:

Which command allows you to reduce fragments of file and optimize the performance of disk? 

1356 0

  • 1
    Chkdsk
    Correct
    Wrong
  • 2
    Diskcomp
    Correct
    Wrong
  • 3
    Scandisk
    Correct
    Wrong
  • 4
    Defrag
    Correct
    Wrong
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Answer : 4. "Defrag "

Q:

Which is not the extension of picture file on computer

854 0

  • 1
    .jpeg
    Correct
    Wrong
  • 2
    .png
    Correct
    Wrong
  • 3
    .gif
    Correct
    Wrong
  • 4
    .mdp
    Correct
    Wrong
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Answer : 4. ".mdp "

Q:

Which of the following is 3rd layer of OSI Model? 

1599 2

  • 1
    Network layer
    Correct
    Wrong
  • 2
    Session layer
    Correct
    Wrong
  • 3
    Physical layer
    Correct
    Wrong
  • 4
    Application layer
    Correct
    Wrong
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Answer : 1. "Network layer "

Q:

How many bytes are equal to one kilobyte? 

9315 4

  • 1
    1050
    Correct
    Wrong
  • 2
    1000
    Correct
    Wrong
  • 3
    976
    Correct
    Wrong
  • 4
    1024
    Correct
    Wrong
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Answer : 4. "1024 "

Q:

When is Rajasthan Information Technology Day celebrated?

814 0

  • 1
    March 21
    Correct
    Wrong
  • 2
    March 22
    Correct
    Wrong
  • 3
    April 21
    Correct
    Wrong
  • 4
    April 22
    Correct
    Wrong
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Answer : 1. "March 21"

Q:

What is the function of a MODEM? 

1221 0

  • 1
    Converts analog signals to digital and vice - versa
    Correct
    Wrong
  • 2
    Serves as a hardware anti - virus
    Correct
    Wrong
  • 3
    Encryption & Decryption
    Correct
    Wrong
  • 4
    Converts data to voice and vice - versa
    Correct
    Wrong
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Answer : 1. "Converts analog signals to digital and vice - versa "

Q:

Which of the following are the cheapest memory devices in terms of cost/bit? 

1945 0

  • 1
    Magnetic Tapes
    Correct
    Wrong
  • 2
    Compact Disk
    Correct
    Wrong
  • 3
    Semiconductor Memories
    Correct
    Wrong
  • 4
    Magnetic Disk
    Correct
    Wrong
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Answer : 2. "Compact Disk "

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