Computer Knowledge Practice Question and Answer

Q:

One kilo byte is equal to _______.

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  • 1
    1000 mega byte
    Correct
    Wrong
  • 2
    1024 mega byte
    Correct
    Wrong
  • 3
    1024 byte
    Correct
    Wrong
  • 4
    1000 Byte
    Correct
    Wrong
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Answer : 3. "1024 byte"
Explanation :

1. Computer memory is usually measured in bytes.

2. The memory of a computer is similar to that of the human brain.

3. It is used to store data and instructions.

4. One kilobyte is equal to 1024 bytes.

5. Defined in computer science by the International System of Units (SI), one byte is equal to eight bits.

Q:

 The errors that can be pointed out by the compiler are: 

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  • 1
    syntax error
    Correct
    Wrong
  • 2
    semantic error
    Correct
    Wrong
  • 3
    logical error
    Correct
    Wrong
  • 4
    run time error
    Correct
    Wrong
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Answer : 1. "syntax error "

Q:

In general a Blu-ray high definition disk has ........ resolution. 

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  • 1
    520 x 380 pixel
    Correct
    Wrong
  • 2
    1920 x 1080 pixel
    Correct
    Wrong
  • 3
    2016 x 1080 pixel
    Correct
    Wrong
  • 4
    3804 x 2016 pixel
    Correct
    Wrong
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Answer : 2. "1920 x 1080 pixel "

Q:

Under which scheme facilities related to different departments are made available at one place?

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  • 1
    Digital India
    Correct
    Wrong
  • 2
    E-commerce
    Correct
    Wrong
  • 3
    E-Mitra
    Correct
    Wrong
  • 4
    E-Suvidha
    Correct
    Wrong
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Answer : 2. "E-commerce"

Q:

OTP is used as one of the additional security features for secure online transactions, what is the full form of OTP?

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  • 1
    Only time period
    Correct
    Wrong
  • 2
    One time period
    Correct
    Wrong
  • 3
    One Time Password
    Correct
    Wrong
  • 4
    Only time password
    Correct
    Wrong
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Answer : 3. "One Time Password"
Explanation :

1. The full form of OTP is One one-time password.

2. OTP is used as one of the additional security features for secure online transactions.

3. The OTP feature prevents certain types of identity theft by ensuring that a captured username/password pair cannot be used a second time.

4. The user's login name usually remains the same, and the one-time password changes with each login.

5. One-Time Password (aka One-Time Passcode) is a form of strong authentication, providing better security to eBanking, corporate networks, and other sensitive data systems.

Q:

Which of these computers is the most powerful in data storage capacity, performance and data processing?

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  • 1
    Micro computer
    Correct
    Wrong
  • 2
    super computer
    Correct
    Wrong
  • 3
    Palmtop computer
    Correct
    Wrong
  • 4
    Mainframe computer
    Correct
    Wrong
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Answer : 2. "super computer"
Explanation :

1. Supercomputer is a powerful computer in terms of data storage capacity, performance and data processing.

2. A supercomputer is a powerful computer that can process large amounts of data and computations very quickly.

3. Supercomputers perform copious amounts of mathematical calculations.

4. Supercomputers are used for a wide variety of applications, including meteorology, medical research, and nuclear weapons research.

Q:

Can it be kept in a cell of Microsoft Excel?

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  • 1
    Number
    Correct
    Wrong
  • 2
    Text
    Correct
    Wrong
  • 3
    Formula
    Correct
    Wrong
  • 4
    All of the above
    Correct
    Wrong
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Answer : 4. "All of the above "
Explanation :

Can be placed in a cell of Microsoft Excel.

- Number

- Text

- Formula

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"

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