Frank is a security administrator for a large company. Occasionally, a user needs to access a specific resource that they don’t have permission to access. Which access control methodology would be most helpful in this situation?

Rule-based access control applies a set of rules to an access request. Based on the application of the rules, the user may be given access to a specific resource that they were not explicitly granted permission to. MAC, DAC, and role-based access control wouldn’t give a user access unless that user has already been explicitly given that access.