Computer Knowledge Practice Question and Answer

Q:

Which of the following is an input device that , when moved by the user on a flat surface , causes a pointer on the screen to move accordingly ?

1644 0

  • 1
    wand reader
    Correct
    Wrong
  • 2
    mouse
    Correct
    Wrong
  • 3
    keyboard
    Correct
    Wrong
  • 4
    bar - code reader
    Correct
    Wrong
  • 5
    scanner
    Correct
    Wrong
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Answer : 2. "mouse "

Q:

Are converted to information by computer process?

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  • 1
    Input
    Correct
    Wrong
  • 2
    Data
    Correct
    Wrong
  • 3
    Number
    Correct
    Wrong
  • 4
    All statements are true
    Correct
    Wrong
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Answer : 2. "Data"

Q:

Where is the file saved by copy command temporarily saved?

1640 1

  • 1
    clip board
    Correct
    Wrong
  • 2
    printer
    Correct
    Wrong
  • 3
    paste
    Correct
    Wrong
  • 4
    object
    Correct
    Wrong
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Answer : 1. "clip board"
Explanation :

When you use the copy command (Ctrl+C on Windows) to copy a file or text, the data is temporarily saved in an area of the computer's memory called the clipboard. The clipboard is a temporary storage location that holds the data you have copied or cut until you paste it elsewhere (using Ctrl+V on Windows). The clipboard allows you to move or duplicate data within or between applications.

Q:

Which of the following is the highest unit of memory?

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  • 1
    Gigabytes
    Correct
    Wrong
  • 2
    Megabytes
    Correct
    Wrong
  • 3
    Bytes
    Correct
    Wrong
  • 4
    Kilobytes
    Correct
    Wrong
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Answer : 1. "Gigabytes"

Q:

What is the full form of OTP?

1635 0

  • 1
    One the phone
    Correct
    Wrong
  • 2
    One Time Password
    Correct
    Wrong
  • 3
    Out to practice
    Correct
    Wrong
  • 4
    One Time Programmable
    Correct
    Wrong
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Answer : 2. "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:

COBOL is widely used in applications

1633 0

  • 1
    Commercial
    Correct
    Wrong
  • 2
    Scientific
    Correct
    Wrong
  • 3
    Space
    Correct
    Wrong
  • 4
    None
    Correct
    Wrong
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Answer : 4. "None "

Q:

How to represent the cell range A9 to A99 in Excel -

1631 1

  • 1
    (A9,A99)
    Correct
    Wrong
  • 2
    (A9TOA99)
    Correct
    Wrong
  • 3
    (A9:A99)
    Correct
    Wrong
  • 4
    (A9-A99)
    Correct
    Wrong
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Answer : 3. "(A9:A99)"

Q:

The Internet is an example of a search engine.

1628 0

  • 1
    Windows
    Correct
    Wrong
  • 2
    Linux
    Correct
    Wrong
  • 3
    Yahoo
    Correct
    Wrong
  • 4
    M.S. Word (MS Word)
    Correct
    Wrong
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Answer : 3. "Yahoo"
Explanation :

The search engine performs the following tasks-

1. Web crawling: Search engines search all web pages on the web using a crawler. A crawler is a program that finds new web pages by following links on the web.

2. Indexing: Once the crawler finds all the web pages, the search engine indexes them in a database. The index contains information for each web page, such as title, URL, and content.

3. Searching: When a user types a search query, the search engine searches all the web pages in the index that may be related to the query.

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