Which access control model assigns permissions to roles or security groups that reflect specific job functions, and then assigns users to those roles instead of granting permissions directly to each user?
ABAC
RuBAC
RBAC
Role-based access control (RBAC) links permissions to roles that correspond to organizational job functions. Administrators add users to the appropriate roles or security groups, which automatically grants the permissions needed for their duties. Permissions therefore are not managed on a per-user basis, simplifying administration and enforcing least privilege.
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