Which Microsoft Windows command line utility is used to clear all previous text from the command prompt screen window? MCQ with Answer and Explanation

Which Microsoft Windows command line utility is used to clear all previous text from the command prompt screen window?
A. clean
B. clear
C. reset
D. cls
Answer: Option D
Solution (By JKSSB Mock Tests)
The 'cls' command stands for clear screen and resets the visible text buffer of the Windows command prompt terminal environment.

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Practice More Operating Systems Questions

Question #1
Which Linux command is used to find the location of an executable?
A. which
B. find
C. locate
D. whereis

Correct Answer: Option A


Explanation:
which shows the full path of the command that would be executed, searching in PATH directories.

This question belongs to: Computer Operating Systems
Question #2
In Linux, which command is used to create a new directory?
A. newdir
B. mkdir
C. rmdir
D. create

Correct Answer: Option B


Explanation:
mkdir (make directory) creates a new directory in the file system.

This question belongs to: Computer Operating Systems
Question #3
Which of the following is a type of operating system designed to handle a large number of small tasks quickly?
A. Batch OS
B. Multiprocessing OS
C. Time-sharing OS
D. Real-time OS

Correct Answer: Option D


Explanation:
RTOS is designed for tasks with strict timing constraints; batch OS processes jobs in batches; time-sharing allows interactive use.

This question belongs to: Computer Operating Systems