Unix File Permission & Access Modes MCQs

This section focuses on "File Permission And Access Modes" in unix. These Multiple Choice Questions (MCQ) should be practiced to improve the unix skills required for various interviews (campus interviews, walk-in interviews, company interviews), placements, entrance exams and other competitive examinations.

1. The basic building blocks of Unix permissions are ____________.

A. read
B. write
C. execute
D. All of the above

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2. How many types of permissions a file has in UNIX?

A. 2
B. 3
C. 4
D. 5

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3. What is group ownership?

A. group of users who can access the file
B. group of users who can create the file
C. group of users who can edit the file
D. group of users who can delete the file

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4. Which of the following is default permission set for ordinary files?

A. rw-rw-rw-
B. rwxrwxrwx
C. r-r-r-
D. rw-rw-rwx

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5. Which command is used to change the owner of a file?

A. cowner
B. cgown
C. chown
D. chowner

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6. What is full form of SUID in File Permission?

A. Select User ID
B. Set User ID
C. Select Unique ID
D. Set Unique ID

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7. Which of the following symbol is used with chmod to assign permission to a file?

A. -
B. +
C. =
D. *

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8. Like chmod, chown and chgrp can also use ___ option.

A. -R
B. -r
C. -x
D. -i

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9. Which number is assign to read permission in Octal Permission Representation?

A. 0
B. 1
C. 2
D. 4

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10. Which file access mode grants the capability to modify, or remove the content of the file?

A. Read
B. Write
C. Execute
D. All of the above

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