Computer Knowledge Practice Question and Answer

Q:

What is the full form of USB?

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  • 1
    Universal sequence bus
    Correct
    Wrong
  • 2
    Union sequence bus
    Correct
    Wrong
  • 3
    Universal Serial Bus
    Correct
    Wrong
  • 4
    Universal Serial Book
    Correct
    Wrong
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Answer : 3. "Universal Serial Bus"
Explanation :

1. The full form of USB is Universal Serial Bus.

2. USB is a wired device with the help of which you can connect any other device like mobile with laptop, mobile with computer etc.

3. Apart from this, you can also insert a memory card inside the laptop with its help because it is a port in which we can insert things like Pendrive, Card Reader, Data Cable etc.

Q:

What are the functions of Information Technology?

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  • 1
    Collection of information
    Correct
    Wrong
  • 2
    Communication of information
    Correct
    Wrong
  • 3
    Processing of information
    Correct
    Wrong
  • 4
    All of the above
    Correct
    Wrong
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Answer : 4. "All of the above"

Q:

Where would you find the letters QUERTY?

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  • 1
    Mouse
    Correct
    Wrong
  • 2
    Screen
    Correct
    Wrong
  • 3
    Keyboard
    Correct
    Wrong
  • 4
    None of these
    Correct
    Wrong
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Answer : 3. "Keyboard"

Q:

Which of the following happens if the computer crashes when a restore point is set? Can we restore back?

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  • 1
    Restoring Windows Registry
    Correct
    Wrong
  • 2
    Restoring system files, and installed applications.
    Correct
    Wrong
  • 3
    Restoring Windows Registry, System Files, Restoring Installed Applications Both the options are correct.
    Correct
    Wrong
  • 4
    All of the above are wrong.
    Correct
    Wrong
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Answer : 3. "Restoring Windows Registry, System Files, Restoring Installed Applications Both the options are correct."
Explanation :

You can restore the following if your computer crashes.

1. Restoring the Windows Registry

2. Restoring installed applications

Q:

……….. is used to send digital data over a telephone line?

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  • 1
    Scanner
    Correct
    Wrong
  • 2
    LAN
    Correct
    Wrong
  • 3
    Modem
    Correct
    Wrong
  • 4
    pen drive
    Correct
    Wrong
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Answer : 3. "Modem"

Q:

Hard copy is a term used to describe...?

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  • 1
    Printed output
    Correct
    Wrong
  • 2
    Storing information on the hard disk
    Correct
    Wrong
  • 3
    Writing on a hard board
    Correct
    Wrong
  • 4
    All of the above
    Correct
    Wrong
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Answer : 1. "Printed output"

Q:

Which of the following Excel functions will give you the current date and time? 

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  • 1
    Current()
    Correct
    Wrong
  • 2
    now()
    Correct
    Wrong
  • 3
    day()
    Correct
    Wrong
  • 4
    datetime()
    Correct
    Wrong
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Answer : 2. "now() "

Q:

The main aim of the ........ system is to dissipate the heat from CPU to the surrounding air. 

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  • 1
    SMPS
    Correct
    Wrong
  • 2
    cpu-heatsink
    Correct
    Wrong
  • 3
    cpu-air conditioner
    Correct
    Wrong
  • 4
    RAM
    Correct
    Wrong
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Answer : 2. "cpu-heatsink "

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