Linux File Permissions Quiz for Systems Support

1. Which command recursively changes permissions on directories and files?

Chmod -r

Chmod -R

Chown -r

Chattr -R

Submit

3. Which command shows the umask value currently set?

Umask

Cat umask

Show umask

Get umask

Submit

5. The /etc/passwd file typically has which permissions?

644

600

755

444

6. Which of the following correctly removes write permission from group and others?

Chmod go-w file

Chmod -w file

Chmod a-w file

Chmod o-w file

Submit

8. If umask is 0022, what default permissions will a new file have?

644

755

777

722

9. What is the default umask value for most systems?

0022

0077

0755

0644

10. A file with permissions '---s--s--t' has which special bits set?

Setuid, setgid, sticky

Setuid and setgid only

Setgid and sticky only

All three special bits with no standard permissions

11. What does the permission mode 755 represent in octal notation?

Owner: read/write/execute, Group: read/execute, Others: read/execute

Owner: read/write, Group: read, Others: execute

Owner: read/execute, Group: write/execute, Others: read

Owner: write/execute, Group: read/write, Others: read/execute

Submit

13. What does the setgid (set group ID) special permission do on a directory?

Files created inherit the directory's group ownership

Only group members can access the directory

Prevents group members from creating files

Makes all files executable by the group

14. Which command displays file permissions in long format?

Ls -la

Cat -p

File -p

Stat -f

15. The permission string 'rw-r--r--' equals which octal value?

644

755

777

600

16. What does the sticky bit (1000) prevent in a shared directory?

Reading files by non-owners

Deleting or renaming files by non-owners

Executing scripts in the directory

Writing to files in the directory

17. Which numeric value in octal represents the setuid bit?

1000

2000

4000

8000

18. In symbolic notation, what does 'u+rwx' represent?

User gains read, write, and execute permissions

Removes read and write from user

Sets all permissions for group

Adds execute to other users

19. What does the setuid (set user ID) special permission allow?

Files execute with owner's privileges regardless of who runs it

Files can only be executed by the owner

Group members gain temporary owner privileges

Users must enter a password to execute the file

20. Which command changes file ownership in Linux?

Chmod

Chown

Chgrp

Chattr

Systems Support Specialist Managing Linux File Permissions Quiz

1. Which command recursively changes permissions on directories and files?

2.

What first name or nickname would you like us to use?

2. To set a file as executable by all users: chmod ____

3. Which command shows the umask value currently set?

4. A directory permission of 700 means only the owner can ____

5. The /etc/passwd file typically has which permissions?

6. Which of the following correctly removes write permission from group and others?

7. To add execute permission for the owner only: chmod ____

8. If umask is 0022, what default permissions will a new file have?

9. What is the default umask value for most systems?

10. A file with permissions '---s--s--t' has which special bits set?

11. What does the permission mode 755 represent in octal notation?

12. To change a file to 'rw-rw-r--' permissions, use: chmod ____

13. What does the setgid (set group ID) special permission do on a directory?

14. Which command displays file permissions in long format?

15. The permission string 'rw-r--r--' equals which octal value?

16. What does the sticky bit (1000) prevent in a shared directory?

17. Which numeric value in octal represents the setuid bit?

18. In symbolic notation, what does 'u+rwx' represent?

19. What does the setuid (set user ID) special permission allow?

20. Which command changes file ownership in Linux?