Within an organization's document-management system, users can set permissions for their own files, allowing or denying access to coworkers as they choose. This level of control is an example of which access-control model?
Attribute-Based Access Control (ABAC)
Mandatory Access Control (MAC)
Discretionary Access Control (DAC)
Role-Based Access Control (RBAC)
Discretionary Access Control (DAC) gives the owner of a resource full discretion to grant, modify, or revoke permissions on that resource. In this scenario, each user (the owner) decides who can read or modify their files, which is the hallmark of DAC. In Role-Based Access Control (RBAC), permissions are bundled into roles managed centrally, not by individual users. Mandatory Access Control (MAC) relies on system-enforced security labels that individual users cannot override. Attribute-Based Access Control (ABAC) evaluates policies based on user, object, and environmental attributes rather than individual ownership.
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