practice · AB-900
AB-900 Practice Exam: Microsoft 365 Core Services
AB-900 exam course video: take a full 40-question practice exam covering Microsoft 365 core services, administration, collaboration, and identity. Microsoft published the revised AB-900 study guide on June 22, 2026, for skills measured beginning July 22, 2026. Every question here is original and built from that updated objective set—not an exam dump or recalled live item.
Video summary
AB-900 exam course video: take a full 40-question practice exam covering Microsoft 365 core services, administration, collaboration, and identity.
Study notes
- Chapter coverage includes AB-900 Practice Exam 1 and Understand authorization.
- Later coverage includes Interpret Identity Secure Score in Microsoft Entra ID and Continue the AB-900 practice-exam series.