A complete, exam-focused companion to the official documentation — built around the latest Skills Measured (effective April 28, 2026). Learn the concepts, memorise the caveats, and walk into the exam ready.
MS-102 validates your ability to deploy and manage a Microsoft 365 tenant, implement identity and access with Microsoft Entra, secure the estate with Microsoft Defender XDR, and govern data with Microsoft Purview. It is the integrating exam that sits across every Microsoft 365 workload.
How to use these notes
Work through the four domains in order, then drill the Exam Tips & Caveats page before test day. These notes are a companion — pair every section with hands-on practice in a Microsoft 365 trial tenant and the official Microsoft Learn modules.
Exam weightings — focus your time accordingly. Defender XDR is the single heaviest area.
Tenant creation, domains, org settings, Service Health, M365 Backup, users & groups, licensing, roles, administrative units and PIM.
Start here → Domain 2 · 25–30%Directory sync (Entra Connect / Cloud Sync), authentication methods, SSPR, Password Protection, Identity Protection, Conditional Access & MFA.
Explore → Domain 3 · 30–35%Secure Score & Exposure Management, incidents & advanced hunting, Defender for Office 365, for Endpoint, and for Cloud Apps.
Explore → Domain 4 · 10–15%Sensitive info types, retention, sensitivity labels, Content/Activity explorer, and Data Loss Prevention (DLP) including Endpoint DLP.
Explore →Exam reality check
Expect case studies, drag-and-drop ordering, "build list" sequencing, hotspot (dropdown) and yes/no statement sets. Many questions hinge on which tool / which licence / which order. The Exam Tips page collects the highest-yield caveats. Most questions cover GA features; commonly-used Preview features can appear.
Disclaimer
These notes are an independent study aid for learning purposes only and are not affiliated with or endorsed by Microsoft. Microsoft constantly renames and re-scopes products — always verify every detail against the official Microsoft documentation linked throughout before relying on it.