Computer Knowledge Practice Question and Answer

Q:

Which of the following are the types of Computer- 

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  • 1
    Mainframe computer
    Correct
    Wrong
  • 2
    Microcomputer
    Correct
    Wrong
  • 3
    Super and mini computers
    Correct
    Wrong
  • 4
    All of the above
    Correct
    Wrong
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Answer : 4. "All of the above"

Q:

Which command is used to remove a table from the database in SQL?

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  • 1
    DELETE TABLE
    Correct
    Wrong
  • 2
    DROP TABLE
    Correct
    Wrong
  • 3
    ERASE TABLE
    Correct
    Wrong
  • 4
    UNATTACH TABLE
    Correct
    Wrong
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Answer : 2. "DROP TABLE "
Explanation :

In SQL, the DROP TABLE command is used to remove a table from the database. When you execute DROP TABLE, it deletes the table along with all its data, indexes, triggers, constraints, and permissions. It should be used with caution as it permanently removes the table and all associated objects from the database.


Q:

What is the shortcut key to copy the format of specific text using Format Painter in MS Word 2010?

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  • 1
    Ctrl + Shift + C
    Correct
    Wrong
  • 2
    Ctrl + Alt +
    Correct
    Wrong
  • 3
    Ctrl + Alt + F
    Correct
    Wrong
  • 4
    Ctrl + Shift + 1
    Correct
    Wrong
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Answer : 2. "Ctrl + Alt +"

Q:

Unauthorized access to computers is called ____.

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  • 1
    hacking
    Correct
    Wrong
  • 2
    blasting
    Correct
    Wrong
  • 3
    a worm
    Correct
    Wrong
  • 4
    a virus
    Correct
    Wrong
  • 5
    None of these
    Correct
    Wrong
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Answer : 1. "hacking "

Q:

A multi-functional printer includes:

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  • 1
    Printer
    Correct
    Wrong
  • 2
    Scanner
    Correct
    Wrong
  • 3
    Copier
    Correct
    Wrong
  • 4
    All of the above
    Correct
    Wrong
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Answer : 4. "All of the above"
Explanation :

Includes a multi-functional printer.

- printer

- scanner

- copier

Q:

What is the use of the Shift + F3 shortcut key in MS Excel 2010?

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  • 1
    To insert an image
    Correct
    Wrong
  • 2
    To open a new sheet
    Correct
    Wrong
  • 3
    To save the current sheet
    Correct
    Wrong
  • 4
    To include the function
    Correct
    Wrong
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Answer : 4. "To include the function"
Explanation :

1. What is the Shift + F3 shortcut key used in MS Excel 2010 to insert the insert function?

2. In the Function window, you can see all the functions available in Excel.

Q:

Select the smallest memory parity:

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  • 1
    Terabyte
    Correct
    Wrong
  • 2
    Gigabyte
    Correct
    Wrong
  • 3
    Kilobyte
    Correct
    Wrong
  • 4
    Megabyte
    Correct
    Wrong
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Answer : 3. "Kilobyte"
Explanation :

1. The smallest memory is the parity bit. A bit is a binary digit, which can be either 0 or 1. A bit is the smallest unit of data that a computer can store.

2. A byte is a large unit of memory made up of 8 bits. A byte can be used to store a letter, a number or a symbol.

3. Kilobyte is another large unit of memory which is made up of 1024 bytes. One kilobyte can be used to store a small file.

4. A megabyte is another large unit of memory which is made up of 1024 kilobytes. One megabyte can be used to store a large file.

5. Gigabyte is another large unit of memory which is made up of 1024 megabytes. One gigabyte is equal to the amount of memory used in a medium-sized computer.

5. Terabyte is another large unit of memory which is made up of 1024 gigabytes. One terabyte is equivalent to the amount of memory used in a large computer.

Q:

Displays details about the chart?

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  • 1
    Data Series
    Correct
    Wrong
  • 2
    Chart Title
    Correct
    Wrong
  • 3
    Value Axis
    Correct
    Wrong
  • 4
    Gridlines
    Correct
    Wrong
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Answer : 2. "Chart Title"

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