RBAC groups privileges into roles that correspond to job functions (for example, "Payroll Clerk" or "System Administrator"). Administrators assign users to roles, and users inherit the role's permissions. This simplifies management and enforces consistency. In DAC, by contrast, the data or resource owner directly decides which individual users receive specific rights. Mandatory models use labels and clearances, and ad-hoc selection by users is not a recognized control model.
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ISC2 Certified in Cybersecurity (CC)
Access Control Concepts
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