Microsoft Certified: Identity and Access Administrator (SC-300) Practice Exam

The main purpose of Access Reviews in Azure Active Directory (Azure AD) is to ensure that only the right people have access to resources. Access Reviews allow organizations to periodically review and validate the permissions assigned to users, groups, and applications within Azure AD. This is crucial for maintaining security and compliance, as it helps to identify any inappropriate access and ensure that access rights are aligned with current job responsibilities and organizational policies.

By conducting Access Reviews, administrators can determine whether users still need their existing access and can take action to revoke access that is no longer necessary. This proactive approach helps to minimize the risk of data breaches and ensures that sensitive information is protected by limiting access to authorized individuals only.

Other options such as creating new users or automating the deletion of unused accounts do not accurately capture the primary focus of Access Reviews, which is centered on reviewing and managing existing access rather than managing user lifecycle events. Providing administrative access to all users is contrary to the principle of least privilege that Access Reviews aim to uphold.