Which of the following is a file system used primarily on optical discs? MCQ with Answer and Explanation

Which of the following is a file system used primarily on optical discs?
A. ISO 9660
B. ext4
C. NTFS
D. HFS
Answer: Option A
Solution (By JKSSB Mock Tests)
ISO 9660 is the standard file system for CD-ROMs and DVDs; others are for hard drives.

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Practice More Operating Systems Questions

Question #1
What is the primary difference between multiprocessing and multitasking?
A. Multitasking uses multiple CPUs, while multiprocessing uses a single CPU
B. Multiprocessing uses multiple CPUs, while multitasking uses a single CPU
C. Multiprocessing refers to running multiple programs, multitasking to multiple threads
D. Both are the same concept

Correct Answer: Option B


Explanation:
Multiprocessing involves multiple physical CPUs/cores to execute processes concurrently, whereas multitasking is the ability to run multiple processes on one CPU via time-sharing.

This question belongs to: Computer Operating Systems
Question #2
Which of the following commands in Linux can be used to view the list of files and folders inside the current directory?
A. dir/w
B. ls
C. show
D. cd

Correct Answer: Option B


Explanation:
The 'ls' command is the standard utility used to list files, folders, and attributes in Unix-like terminal configurations.

This question belongs to: Computer Operating Systems
Question #3
Which mechanism ensures that only one process can execute inside a critical section of code at any given time?
A. Context Swapping
B. Spooling Routine
C. Paging Allocation
D. Mutual Exclusion

Correct Answer: Option D


Explanation:
Mutual Exclusion (Mutex) guarantees that if a process is executing inside its critical section, no other processes are permitted to enter that code path.

This question belongs to: Computer Operating Systems