Microsoft's Exam AB-900 study guide organizes skills measured into three official objective areas. Use those areas as the study structure instead of relying on local practice-bank counts or guessed exam emphasis.
This area covers core Microsoft 365 administration knowledge. Microsoft lists topics such as license types, Microsoft 365 admin center organization settings, Exchange Online mailboxes and distribution groups, SharePoint sites and libraries, Teams objects, Microsoft Entra objects, least privilege, and audit log review.
This area centers on Microsoft Purview and governance risks for Microsoft 365 and Copilot. Study sensitivity labels, retention concepts, audit, Communication Compliance, Insider Risk, DLP, oversharing, external sharing, data access governance reports, and controls that affect what Copilot can discover.
This area covers the features and administration of Microsoft 365 Copilot and agents. Microsoft includes built-in Copilot capabilities, agents, monthly license versus pay-as-you-go concepts, agent use cases, Copilot license assignment, usage and adoption reporting, billing policies, and agent lifecycle monitoring.
Treat the skills measured list as a checklist of Microsoft tools and decisions. For each bullet, ask which admin center, report, governance feature, license model, or agent feature is involved. That approach keeps study aligned with Microsoft's scope and avoids turning practice metadata into exam guidance.
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Official and vendor docs used to ground this page.
Official Microsoft study guide listing the audience profile, skills measured, and objective groups for Exam AB-900.
Microsoft Purview documentation covering compliance capabilities such as information protection, data lifecycle, risk, audit, and discovery.
Microsoft Purview documentation explaining DSPM for AI protections for Copilot and other generative AI applications.
Microsoft documentation explaining Microsoft 365 Copilot agents and how they extend Copilot with focused knowledge and actions.
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