Operating System MCQs with Answers
Practice important Operating System MCQs with answers and explanations.
Multiple Choice Questions
Q1191: UNIX file systems can be split to different devices, such as _______.
- A: Virtual disks
- B: Remote systems
- C: Physical disks
- D: All of the above
View Answer
D
Q1192: A UNIX system mounts a file system at a specific _______ in the directory structure.
- A: Point
- B: File
- C: Device
- D: Root
View Answer
A
Q1193: A file is deleted when all links to it are _______.
- A: Renamed
- B: Broken
- C: Deleted
- D: Refreshed
View Answer
C
Q1194: In UNIX, the reference count for a file is incremented when a _______ is created.
- A: Link
- B: File
- C: Directory
- D: Permission
View Answer
A
Q1195: UNIX uses _______ to handle the deletion of files that have no remaining references.
- A: Hard links
- B: Soft links
- C: Garbage collection
- D: Cycle detection
View Answer
C
Q1196: What is the purpose of file protection?
- A: To prevent unauthorized access
- B: To provide free access
- C: To delete files
- D: To execute files
View Answer
A
Q1197: Which permission in UNIX allows loading a file into memory and executing it?
- A: Read
- B: Write
- C: Execute
- D: Append
View Answer
C
Q1198: Which command is used to set permission bits on newly created files and directories in UNIX?
- A: umask
- B: chmod
- C: rmdir
- D: mkdir
View Answer
A
Q1199: In UNIX, the execute permission on a directory allows which operation?
- A: Read the directory
- B: Delete files in the directory
- C: Search the directory
- D: Append files in the directory
View Answer
C
Q1200: What is the default permission for executable files and directories in UNIX/Linux?
- A: 777
- B: 755
- C: 666
- D: 444
View Answer
A