Computer Knowledge Practice Question and Answer

Q:

What are the individual dots which make up a picture on the monitor screen called?

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  • 1
    All of the above
    Correct
    Wrong
  • 2
    Coloured spots
    Correct
    Wrong
  • 3
    Pixies
    Correct
    Wrong
  • 4
    Pixels
    Correct
    Wrong
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Answer : 4. "Pixels"

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:

_______ is used to measure the speed of the processor.

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  • 1
    Velocity
    Correct
    Wrong
  • 2
    Unit
    Correct
    Wrong
  • 3
    Clock speed
    Correct
    Wrong
  • 4
    Memory
    Correct
    Wrong
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Answer : 3. "Clock speed"
Explanation :

1. Clock speed is used to measure the speed of the processor.

2. Clock speed is the rate at which a processor can complete a processing cycle. It is usually measured in megahertz or gigahertz.

3. One megahertz is equal to one million cycles per second, while one gigahertz is equal to one billion cycles per second. This means that a 1.8 GHz processor has twice the clock speed of a 900 MHz processor.

Q:

What is the process of turning on the computer called?

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  • 1
    Starting
    Correct
    Wrong
  • 2
    turning on
    Correct
    Wrong
  • 3
    Hibernating
    Correct
    Wrong
  • 4
    Booting
    Correct
    Wrong
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Answer : 4. "Booting"

Q:

What is the purpose of an e-public distribution system?

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  • 1
    Providing food grains to the poor at low rates
    Correct
    Wrong
  • 2
    Providing houses to the poor
    Correct
    Wrong
  • 3
    Providing medical facilities to the poor
    Correct
    Wrong
  • 4
    All of the above
    Correct
    Wrong
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Answer : 1. "Providing food grains to the poor at low rates"
Explanation :

1. In India, an e-Public Distribution System or e-Public Distribution System (ePDS) has been developed to deal with food shortage and through this, food grains are distributed to the poor people of the society at affordable prices.

2. The Centre's allocation of grains to the states depends on the availability of grains in the central stocks and the average grain purchased by the states in the last three years.

3. The main commodities available under this benefit are – wheat, rice, sugar and kerosene.

Q:

What is the use of a Mobile Wallet?

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  • 1
    Dialling numbers and watching videos
    Correct
    Wrong
  • 2
    Calling
    Correct
    Wrong
  • 3
    Exchange of money
    Correct
    Wrong
  • 4
    None of the above
    Correct
    Wrong
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Answer : 3. "Exchange of money"
Explanation :

The mobile wallet can be used for the following functions:

1. Payment: Using a mobile wallet, you can make payments both online and offline. You can pay using your mobile wallet at any store, restaurant, or other business that accepts mobile wallets.

2. Money Transfer: Using a mobile wallet, you can transfer funds from your bank account to another person's bank account. You can send money to your friends, family, or any other person using a mobile wallet.

3. Recharge and bill payments: Using a mobile wallet, you can pay your mobile phone, data pack, electricity bill, water bill, and other bills.

4. Point of Sale (POS) Transactions: Using mobile wallets, you can make payments through POS machines. For POS transactions, you simply need to open your mobile wallet app and tap your phone on the POS machine to make a payment.

Q:

What are 'portable' computers for traveling users?

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  • 1
    Super Computer
    Correct
    Wrong
  • 2
    Server
    Correct
    Wrong
  • 3
    Laptop
    Correct
    Wrong
  • 4
    Mini Computer
    Correct
    Wrong
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Answer : 3. "Laptop"

Q:

BASIC language is used for which of the following work?

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  • 1
    For commercial purposes
    Correct
    Wrong
  • 2
    For scientific calculations
    Correct
    Wrong
  • 3
    to teach children
    Correct
    Wrong
  • 4
    To learn simple language in the beginning
    Correct
    Wrong
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Answer : 4. "To learn simple language in the beginning"

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