Q11. Which of the following is a video file extension?
- .docx
- .txt
- .mp4
- .mp3
Show answer and explanation
Correct answer: C. .mp4
.mp4 is a video container.
NTS / PTS Computer Science MCQs with Answers
17 practice MCQs on Computer Science for NTS / PTS tests. Think of your answer first, then open "Show answer and explanation". These are practice questions, not official examination papers.
Q12. Which key toggles uppercase letters?
- Tab
- Num Lock
- Scroll Lock
- Caps Lock
Show answer and explanation
Correct answer: D. Caps Lock
Caps Lock toggles capitals.
Q13. Who developed the Linux kernel?
- Ken Thompson
- Linus Torvalds
- Dennis Ritchie
- Bill Gates
Show answer and explanation
Correct answer: B. Linus Torvalds
Linus Torvalds released Linux in 1991.
Q14. Which key removes the character to the right of the cursor?
- Delete
- Backspace
- Home
- End
Show answer and explanation
Correct answer: A. Delete
Delete removes to the right.
Q15. What is a folder?
- A device
- A program
- A type of file
- A container for files
Show answer and explanation
Correct answer: D. A container for files
Folders organise files.
Q16. Which of the following is an operating system?
- Linux
- Chrome
- Python
- Oracle
Show answer and explanation
Correct answer: A. Linux
Linux is an OS kernel family.
Q17. What is the hexadecimal digit A in decimal?
- 11
- 9
- 12
- 10
Show answer and explanation
Correct answer: D. 10
A = 10.
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