What is the function of the Linux 'mount' command? MCQ with Answer and Explanation

Question
What is the function of the Linux 'mount' command?
A. To attach a file system to a directory (mount point)
B. To check file system integrity
C. To create a new file system
D. To format a disk
Answer: Option A
Solution (By JKSSB Mock Tests)
mount makes a file system accessible at a specified directory, allowing the OS to read and write data on that device.
This question belongs to: Computer Operating Systems
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Practice More Operating Systems Questions

Question #1
In Linux, the 'export' command is used to:
A. All of the above
B. Make a variable global
C. Set environment variables that are passed to child processes
D. Display environment variables
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Correct Answer: Option A

Explanation:
export makes shell variables available to subprocesses; without options, it lists exported variables.
This question belongs to: Computer Operating Systems
Question #2
Which of the following is a type of Linux shell?
A. Bash
B. Terminal
C. Command Prompt
D. PowerShell
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Correct Answer: Option A

Explanation:
Bash is a shell; Command Prompt and PowerShell are Windows; Terminal is a terminal emulator.
This question belongs to: Computer Operating Systems
Question #3
What is the primary purpose of virtual memory?
A. To increase CPU speed
B. To provide a permanent storage for files
C. To reduce power consumption
D. To extend physical memory using disk storage
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Correct Answer: Option D

Explanation:
Virtual memory uses a portion of the hard disk as an extension of RAM, allowing processes to use more memory than physically available.
This question belongs to: Computer Operating Systems
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