Final answer:
RBAC (Role-Based Access Control) is the best authentication method for an office administrator who needs to perform server backups, as it provides access based on the user's role and is tied to their responsibilities.
Step-by-step explanation:
The ideal authentication method for an office administrator being trained to perform server backups would be RBAC (Role-Based Access Control). This method is based on the roles of individual users within an organization. It restricts system access to authorized users based on their role and is directly connected to the scope of their responsibilities.
This ensures that the administrator has only the necessary permissions to perform backups, enhancing security by minimizing unnecessary access to sensitive parts of the system. Other methods like MAC (Mandatory Access Control), DAC (Discretionary Access Control), and security tokens serve different purposes and may not be as efficient for this specific task.The ideal authentication method for the office administrator to perform server backups would be RBAC (Role-Based Access Control). In RBAC, access is granted based on the roles and responsibilities of the user. This way, the office administrator can be given specific access rights and permissions for performing server backups.