Computer Knowledge Practice Question and Answer

Q:

The main work done by computer is _____

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  • 1
    Arithmetic Operation
    Correct
    Wrong
  • 2
    Logical Operation
    Correct
    Wrong
  • 3
    Storage and Relative
    Correct
    Wrong
  • 4
    all of the above
    Correct
    Wrong
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Answer : 4. "all of the above"

Q:

Using which keys opens the option of 'Find and Replace'?

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  • 1
    Ctrl + F
    Correct
    Wrong
  • 2
    Ctrl + X
    Correct
    Wrong
  • 3
    Ctrl + R
    Correct
    Wrong
  • 4
    Ctrl + H
    Correct
    Wrong
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Answer : 1. "Ctrl + F"
Explanation :

1. Using Ctrl + F opens the option of ‘Find and Replace’.

2. In Word, the shortcut key Ctrl + F is used to open the Find box.

3. Ctrl + F is used to find a document.

Q:

Which of the following is used in information security to prove the identity of the sender?

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  • 1
    Confidentiality
    Correct
    Wrong
  • 2
    Integrity
    Correct
    Wrong
  • 3
    Authentication
    Correct
    Wrong
  • 4
    none of the above
    Correct
    Wrong
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Answer : 3. "Authentication"

Q:

You can access social media from a computer using the following:

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  • 1
    Documents, Excel, PPT etc.
    Correct
    Wrong
  • 2
    YouTube, Google Play, Outlook etc.
    Correct
    Wrong
  • 3
    Facebook, Instagram, Twitter etc.
    Correct
    Wrong
  • 4
    SSO, PRSY, One Pure
    Correct
    Wrong
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Answer : 3. "Facebook, Instagram, Twitter etc."
Explanation :

1. Social media is a technology through which we can share our ideas and information with people.

2. Social media is internet based and it provides instant electronic communication facility to the users. Users connect to social media through a web browser or application from a computer, laptop, tablet or smartphone.

3. Examples of social media –

1. Facebook

2. YouTube

3. Instagram

4. LinkedIn

5. Twitter

6. Whatsapp

7. Pinterest

8. Snapchat

9. Telegram

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 physical layout of a computer network called?

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  • 1
    network service
    Correct
    Wrong
  • 2
    network size
    Correct
    Wrong
  • 3
    network topology
    Correct
    Wrong
  • 4
    network property
    Correct
    Wrong
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Answer : 3. "network topology"

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() "

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