Which three (3) are common methods of access control

Role-Based Access Control (RBAC): This method of access control is based on the roles that users have within the system. Each role has certain permissions associated with it, and users assigned to that role inherit those permissions. This method is effective in organizations where many users perform the same tasks.

Discretionary Access Control (DAC): In this method, the owner of the information or resource can change its permissions at their discretion. This means that the control of access is at the discretion of the individual or entity owning the resource.

Mandatory Access Control (MAC): This is a more rigid method where access and permissions are regulated by a central authority based on different levels of security. Users and data are classified according to these levels, and access is granted or denied based on these classifications. This method is commonly used in organizations that require a high level of security, such as military institutions.