Apple Certified Support Professional (ACSP) Practice Exam 2025 - Free ACSP Practice Questions and Study Guide

The three levels of ownership for file permissions are identified as Owner, Group, and Others. This classification is fundamental in maintaining security and access control within an operating system.

The Owner refers to the individual user who has full control over the file, allowing them to read, write, and execute the file as needed. The Group represents a set of users that share the same access permissions for a particular file, enabling a collaborative workspace where members can manipulate files collectively while still protecting them from unauthorized users. Others encompass everyone who does not fall into the Owner or Group categories, typically allowing more restrictive access to ensure that only authorized users can interact with the file.

This structure establishes a foundational method for managing permissions effectively, ensuring that users can work securely while enabling collaboration when appropriate.