Which approach enables an administrator to implement security policies across all users based on predefined rules?

Which approach enables an administrator to implement security policies across all users based on predefined rules?

• A. Mandatory Access Control
• B. Discretionary Access Control
• C. Role-Based Access Control
• D. Rule-Based Access Control

Answer: (D)

Policy enforcement through predefined rules is the essence of Rule-Based Access Control. A rule-based system uses a centralized set of if-then conditions that determine whether access is allowed, and these rules apply uniformly to all users and subjects trying to reach resources. This makes it ideal for implementing security policies across the entire user base, and administrators can update the rules to reflect new policies without changing individual permissions. In contrast, Mandatory Access Control relies on security labels and clearances rather than rule sets; Discretionary Access Control depends on resource owners to grant permissions; and Role-Based Access Control grants access based on a user’s role, which is about roles rather than a broad policy engine of rules.

Policy enforcement through predefined rules is the essence of Rule-Based Access Control. A rule-based system uses a centralized set of if-then conditions that determine whether access is allowed, and these rules apply uniformly to all users and subjects trying to reach resources. This makes it ideal for implementing security policies across the entire user base, and administrators can update the rules to reflect new policies without changing individual permissions. In contrast, Mandatory Access Control relies on security labels and clearances rather than rule sets; Discretionary Access Control depends on resource owners to grant permissions; and Role-Based Access Control grants access based on a user’s role, which is about roles rather than a broad policy engine of rules.