ACL ACL File System & OS Permissions

Question 1

In POSIX-based systems, which command displays the Access Control List entries for a file?

Accepted Answer

getfacl

Answer

The `getfacl` command displays the ACL entries of files on POSIX-compliant systems.

Question 2

What does NTFS stand for in the context of Windows file system security?

Accepted Answer

New Technology File System

Answer

NTFS (New Technology File System) is Microsoft's proprietary file system that supports fine-grained ACL permissions.

Question 3

In Windows NTFS, which permission level grants read, write, and delete rights but excludes the ability to change permissions or take ownership?

Accepted Answer

Modify

Answer

The Modify permission allows reading, writing, and deleting files but does not include rights to change permissions or take ownership.

Question 4

Which Linux command sets an ACL entry granting user 'john' read and write access to a file?

Accepted Answer

setfacl -m u:john:rw file.txt

Answer

The `setfacl -m u:john:rw file.txt` command modifies the ACL to grant user john read and write permissions on the specified file.

Question 5

What is the 'mask' entry in a POSIX ACL?

Accepted Answer

The maximum effective permissions for named users, groups, and other ACL entries

Answer

The mask entry defines the upper limit of effective permissions that can be granted to named users, named groups, and the owning group in a POSIX ACL.

(ACL) Access Control Lists Practice Test

(ACL) Access Control Lists Practice Test

ACL ACL File System & OS Permissions