RHCSA RHCSA File Permissions and ACLs 2

Question 1

A file has permissions rwxr-x---. Which octal notation represents this?

Accepted Answer

750

Answer

rwx=7, r-x=5, ---=0 combines to octal 750.

Question 2

Which command removes the execute permission for 'others' on a file named script.sh?

Accepted Answer

chmod o-x script.sh

Answer

'o' targets the 'others' category and '-x' removes the execute bit.

Question 3

What does the sticky bit do when set on a directory?

Accepted Answer

Only the file owner or root can delete files within the directory

Answer

The sticky bit prevents users from deleting files they don't own inside a shared directory.

Question 4

A user wants to set an ACL so that user 'alice' has read-only access to /data/report.txt. Which command is correct?

Accepted Answer

setfacl -m u:alice:r /data/report.txt

Answer

setfacl -m modifies (adds/changes) an ACL entry; u:alice:r grants read to alice.

Question 5

Which command displays the ACL entries for the file /etc/myconfig?

Accepted Answer

getfacl /etc/myconfig

Answer

getfacl prints the access control list entries for a file or directory.

RHCSA Exam Practice Test