What is a UNIX File System (UFS) ACL, and what does it do?

Access Control Lists are lists of files that are safe to edit.

Access Control Lists prevent certain users from using the system.

Administrative Control Liasons use hardware to prevent unauthorized access to the system,

Access Control Lists restrict or grant read, write, or execute access to specific users or groups.

Answer:
Access Control Lists restrict or grant read, write, or execute access to specific users or groups.

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