Linux+ V8 File Permissions and Access Control Lists Quiz

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| Questions: 21 | Updated: Aug 13, 2026
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1. Which permission bit is represented by the value 1?

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About This Quiz
Linux+ V8 File Permissions and Access Control Lists Quiz - Quiz

This quiz assesses your understanding of Linux file permissions and access control lists (ACLs), core security concepts for the CompTIA Linux+ V8 certification. You'll evaluate permission models, ownership structures, and ACL configuration to secure systems effectively. Master these fundamentals to control file access and protect sensitive data in Linux environments.

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2. Which command removes an ACL entry from a file?

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3. ACLs provide more granular access control than standard Linux permissions. True or False?

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4. The sticky bit is represented by the octal digit ____ in the leftmost position.

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5. File permissions in octal use how many digits for standard permissions?

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6. The command 'chmod 4755 script.sh' sets which special permission?

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7. What does the 'mask' field in an ACL define?

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8. Which Linux filesystem must support ACLs for them to function?

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9. An ACL entry 'u:username:rwx' grants which permissions to the specified user?

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10. What command displays an ACL in a readable format?

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11. The SGID bit on a directory ensures files created inherit the directory's group. True or False?

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12. In Linux, what does the first character in a file's permission string represent?

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13. A umask of 0022 results in default file permissions of 644. What is the calculation?

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14. What does umask determine?

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15. The getfacl command is used to view file ACLs. True or False?

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16. Which command sets ACLs on a file in Linux?

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17. What does the sticky bit prevent in a shared directory?

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18. Which special permission allows a program to run with the owner's privileges?

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19. The permission string 'drwxr-xr-x' indicates the file is a directory. What is its octal notation?

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20. What command is used to change file ownership in Linux?

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21. Which numeric permission value grants read, write, and execute to the owner?

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Which permission bit is represented by the value 1?
Which command removes an ACL entry from a file?
ACLs provide more granular access control than standard Linux...
The sticky bit is represented by the octal digit ____ in the leftmost...
File permissions in octal use how many digits for standard...
The command 'chmod 4755 script.sh' sets which special permission?
What does the 'mask' field in an ACL define?
Which Linux filesystem must support ACLs for them to function?
An ACL entry 'u:username:rwx' grants which permissions to the...
What command displays an ACL in a readable format?
The SGID bit on a directory ensures files created inherit the...
In Linux, what does the first character in a file's permission string...
A umask of 0022 results in default file permissions of 644. What is...
What does umask determine?
The getfacl command is used to view file ACLs. True or False?
Which command sets ACLs on a file in Linux?
What does the sticky bit prevent in a shared directory?
Which special permission allows a program to run with the owner's...
The permission string 'drwxr-xr-x' indicates the file is a directory....
What command is used to change file ownership in Linux?
Which numeric permission value grants read, write, and execute to the...
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