Free Microsoft 365 Fundamentals MS-900 Practice Question

The Zero Trust Model is the security approach that requires all users, whether inside or outside the organization's network, to be authenticated, authorized, and validated before being granted access to applications and data. It operates on the principle of 'never trust, always verify,' ensuring that every access request is thoroughly vetted.

The Perimeter Security Model assumes that users inside the network are trusted and focuses on securing the network's boundaries, which doesn't align with authenticating and authorizing all access requests.

Role-Based Access Control (RBAC) assigns permissions based on user roles but doesn't necessarily enforce authentication and authorization of every access request regardless of origin.

The Defense-in-Depth Strategy involves layering multiple security measures to protect data but doesn't specifically mandate the continuous verification of all access attempts as described.