AB-650 Practice Tests: Administering M365 & AI Services

MS-102 retires in October 2026. Its replacement, AB-650: Administering Microsoft 365 and AI Services, keeps the tenant administration core but adds a whole domain on managing and securing AI services; Copilot administration, the agent registry, Entra Agent ID, the Copilot Control System and Agent 365. If you're an M365 admin, this is the exam your renewal path now runs through, and practice material for it barely exists yet.

You get 6 full-length practice tests of 60 questions each; 360 original questions weighted to the official study guide:

Configure and manage Microsoft 365 tenants and workloads (20-25%)

Govern and secure Microsoft 365 tenants and workloads (40-45%)

Manage and secure AI services in Microsoft 365 (35-40%)

That means proper coverage of the new AI surface: Copilot tenant readiness, agent lifecycle and the agent registry, DSPM for AI, Copilot Credits and pay-as-you-go billing, Microsoft 365 Backup, Restricted Content Discovery; alongside the admin bread and butter of Entra users and groups, PIM, Conditional Access, Defender for Office 365 and Purview.

Each test mixes 45 multiple-choice and 15 multi-select questions in the real exam's scenario style.

Two things most practice tests skip:

Every answer option has its own explanation; wrong guesses teach you something too.

Every question links to the relevant Microsoft Learn page, so you can verify anything you doubt.

To be clear: these are original questions written from the public exam outline and the documentation, not "real exam questions". Nobody sells those legitimately, and dumps can get your certification revoked. This course tells you honestly whether you're ready.

Think a question is wrong? Post in the Q&A. I'll check it against the docs, fix it if you're right, and credit you.

Happy learning!