RHCSA File Permissions and ACLs Quiz

1. In octal notation, what do the three digits represent in a file permission like 755?

Owner, group, others

Read, write, execute

User, system, world

Primary, secondary, tertiary

2. True or False: The execute permission on a directory allows you to cd into it.

True

False

3. Which command displays extended ACLs for a file?

Getfacl

Lsacl

Showacl

Aclcat

4. True or False: The chmod command can modify ACLs on a file.

True

False

5. How do you grant read and write permissions to a specific user via ACL?

Setfacl -m u:username:rw file

Setacl -u username +rw file

Acladd username:rw file

Chmod u+rw file

Submit

7. True or False: ACLs can provide finer-grained access control than standard Unix permissions.

True

False

Submit

9. Which command recursively applies permissions to a directory and its contents?

Chmod -R 755 directory

Chmod -r 755 directory

Chown -recursive 755 directory

Chmod --all 755 directory

10. To remove all ACLs from a file, which command is used?

Setfacl -b file

Delacl file

Rmacl file

Setfacl -x file

11. Which command copies file permissions from one file to another?

Chmod --reference source target

Cp --preserve permissions source target

Stat source | chmod target

Chperm source target

Submit

13. Which permission allows listing contents of a directory?

Read (r)

Write (w)

Execute (x)

Both read and write

14. What does the 's' in a permission string like 'rwsr-xr-x' indicate?

Sticky bit on owner

Setuid bit on owner

Setgid bit on group

Special permissions

15. True or False: Only the root user can change a file's owner.

True

False

16. Which command changes file ownership to a new user and group?

Chown user:group file

Chgrp user:group file

Chmod user:group file

Setowner user:group file

17. What is the default umask on most Red Hat systems?

0022

0077

0002

0666

Submit

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

Reading files by other users

Non-owners from deleting others' files

Executing files in the directory

Changing file ownership

20. Which command sets the setuid bit on an executable file?

Chmod 4755 file

Chmod u+s file

Chmod 2755 file

Both a and b

RHCSA File Permissions and ACLs Quiz

1. In octal notation, what do the three digits represent in a file permission like 755?

2.

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

2. True or False: The execute permission on a directory allows you to cd into it.

3. Which command displays extended ACLs for a file?

4. True or False: The chmod command can modify ACLs on a file.

5. How do you grant read and write permissions to a specific user via ACL?

6. The permission string 'rw-rw-r--' in octal notation is ____.

7. True or False: ACLs can provide finer-grained access control than standard Unix permissions.

8. The octal value for write permission is ____.

9. Which command recursively applies permissions to a directory and its contents?

10. To remove all ACLs from a file, which command is used?

11. Which command copies file permissions from one file to another?

12. To grant a group execute permission on a file, use chmod ____.

13. Which permission allows listing contents of a directory?

14. What does the 's' in a permission string like 'rwsr-xr-x' indicate?

15. True or False: Only the root user can change a file's owner.

16. Which command changes file ownership to a new user and group?

17. What is the default umask on most Red Hat systems?

18. The setgid bit on a directory causes new files to inherit the directory's ____.

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

20. Which command sets the setuid bit on an executable file?