Which statement correctly describes the purpose of 'setfacl --remove-default dir1'?

• A. It removes all ACLs from the directory
• B. It removes the default ACLs from the directory
• C. It resets ACLs to owner
• D. It adds default ACLs to the directory

Answer: (B)

Default ACLs specify permissions that are automatically applied to new items created in a directory. The operation setfacl --remove-default dir1 deletes those default ACL entries from the directory. As a result, future files and subdirectories created inside dir1 won’t inherit the previous default permissions. The existing access ACLs on dir1 remain unchanged, and this command does not remove all ACL entries or add new default ACLs.