What This Domain Covers

Microsoft 365 admin center, Exchange Online, SharePoint, Teams, Microsoft Entra, Zero Trust, authentication

Key Topics to Master

• Microsoft 365 admin center: domain names, org settings, license types
• Exchange Online admin center: mailboxes and distribution lists
• SharePoint admin center: sites, libraries, folders, roles and permissions
• Teams admin center: teams, channels, and policies
• Zero Trust principles: verify explicitly, least privilege, assume breach
• Authentication methods: MFA, passwordless, SSPR
• Authorization and Conditional Access policies
• SSO and its benefits
• Microsoft Defender XDR: threat protection and intelligence
• Microsoft Entra: identity and access management features
• Identity Secure Score interpretation
• Audit logs for user and admin activity
• Privileged Identity Management (PIM)
• App registrations and Enterprise applications
• Troubleshoot sign-in issues (MFA, conditional access, risky sign-ins)

High-Yield Exam Tips

• Expect scenario questions that test microsoft 365 admin center: domain names, org settings, license types in real Microsoft contexts
• Map each topic above to hands-on labs or documentation — AB-900 rewards applied knowledge
• After reading, complete practice questions for this domain before moving on
• Revisit weak areas using the Copilot & Agent Admin Fundamentals (AB-900) study plan and flashcards