In an access control model, what does 'RBAC' stand for?

'RBAC' stands for Role-Based Access Control, which is a widely used access control model in information security. This model assigns permissions and access rights based on the roles that users have within an organization, rather than on individual-user identities. In an RBAC system, roles are defined according to job functions, and access rights are assigned to these roles. This approach simplifies management and administration of user permissions since users can be easily granted or revoked access by changing their assigned roles without the need to modify individual permissions.

The advantages of RBAC include improved security, as it ensures that users have access only to the information necessary for their roles, and enhanced operational efficiency, as managing roles is usually more straightforward than managing access for each user individually. This is especially beneficial in organizations with large numbers of users and various levels of access requirements.

In contrast to this, the other options do not represent established access control models in the same way. For example, Random-Based Access Control and Resource-Based Access Control are not recognized terminology in the context of access controls, and Regulatory-Based Access Control suggests a focus on compliance rather than a structured method of granting access based on user roles. Thus, Role-Based Access Control is the correct and most accurate term in the context of the