Complete MS-900 study guide — Microsoft 365 cloud services, productivity apps, security, compliance, and licensing.
This guide works best as a loop: read a chapter, test yourself with practice questions, look up unfamiliar terms in the glossary, then move to the next chapter.
104 chapters covering every exam objective. Each chapter includes key concepts, exam tips, common traps, comparison tables, and a 5-question quiz at the end.
Start Chapter 1Free timed and untimed practice with instant feedback and full explanations. Pick 10–120 questions per session. Filter by domain to drill your weak areas.
Go to practice testEvery MS-900 term defined and searchable. Use it when a chapter mentions a concept you haven't seen before or want a quick refresher on.
Browse glossaryExam blueprint, domain weights, passing score, duration, cost, and registration links. Start here if you're new to this certification.
View exam guide9 chapters
Cloud Service Types for MS-900
Objective 1.1 · Cloud Concepts M365
Benefits of Microsoft Cloud
Objective 1.2 · Cloud Concepts M365
Microsoft 365 vs Office 365: What Changed
Objective 1.1
SaaS, PaaS, IaaS in Microsoft 365
Objective 1.2
Microsoft 365 Admin Roles and Permissions
Objective 1.2
Microsoft 365 SLAs and Service Guarantees
Objective 1.2
Hybrid Microsoft 365 Deployment Models
Objective 1.2
Microsoft 365 Network Connectivity Principles
Objective 1.2
Microsoft 365 Global Service Architecture
Objective 1.2
39 chapters
Microsoft Teams
Objective 2.1 · M365 Productivity
Exchange Online
Objective 2.2 · M365 Productivity
SharePoint Online and OneDrive
Objective 2.3 · M365 Productivity
Microsoft 365 Apps
Objective 2.4 · M365 Productivity
Microsoft Intune and Endpoint Manager
Objective 2.5 · M365 Productivity
Microsoft Viva Employee Experience Platform
Objective 2.1
Microsoft Loop and Collaborative Workspaces
Objective 2.1
Microsoft Stream for Video
Objective 2.2
Microsoft Forms and Microsoft Planner
Objective 2.4
Microsoft Copilot for Microsoft 365
Objective 2.4
Power Apps: Low-Code Application Development
Objective 2.4
Power Automate: Workflow Automation
Objective 2.4
Power BI in Microsoft 365
Objective 2.5
Yammer and Microsoft Viva Engage
Objective 2.1
OneDrive for Business
Objective 2.3
Hybrid Exchange and Mail Migration
Objective 2.2
Microsoft Whiteboard and Collaborative Tools
Objective 2.1
Microsoft Bookings for Appointment Scheduling
Objective 2.1
Microsoft Lists for Work Tracking
Objective 2.4
Microsoft To Do and Task Management
Objective 2.4
Microsoft Project for the Web
Objective 2.4
Microsoft Sway for Presentations
Objective 2.4
Microsoft Access and Power Apps Comparison
Objective 2.4
Microsoft Teams Phone and Calling Plans
Objective 2.1
Teams Live Events and Webinars
Objective 2.1
SharePoint Modern Sites vs Classic Sites
Objective 2.3
SharePoint as Intranet: Communication Sites
Objective 2.3
OneDrive Sync Client and Known Folder Move
Objective 2.3
Microsoft Power Platform Overview
Objective 2.4
Power Virtual Agents and Chatbots
Objective 2.4
Microsoft Migration Tools: SharePoint and Exchange
Objective 2.2
Microsoft 365 Add-ins and App Integrations
Objective 2.4
Windows 365 Cloud PC
Objective 2.5
Exchange Online Architecture and Mail Flow
Objective 2.2
Microsoft Loop Components and Collaboration
Objective 2.1
Microsoft Teams Rooms and Meeting Devices
Objective 2.1
Shared Mailboxes and Distribution Lists
Objective 2.2
Microsoft 365 Connectors and Webhooks
Objective 2.4
Azure Virtual Desktop (AVD)
Objective 2.5
40 chapters
Microsoft 365 Compliance
Objective 3.2 · M365 Security
Data Governance and Retention
Objective 3.4 · M365 Security
Microsoft 365 Security Center
Objective 3.1 · M365 Security
Identity Protection in M365
Objective 3.3 · M365 Security
Exchange Online Protection (EOP)
Objective 3.1
Microsoft Defender for Office 365
Objective 3.1
MFA and Conditional Access in M365
Objective 3.3
Sensitivity Labels and Azure Information Protection
Objective 3.4
Retention Labels and Compliance
Objective 3.4
eDiscovery in Microsoft 365
Objective 3.2
Microsoft Entra ID (Azure AD) in M365
Objective 3.3
Data Loss Prevention (DLP) in Microsoft 365
Objective 3.4
Microsoft 365 Auditing and Activity Reports
Objective 3.2
Microsoft 365 Alert Policies
Objective 3.1
Microsoft Defender for Business
Objective 3.1
Intune Device Compliance and Configuration Policies
Objective 3.3
Azure AD Join vs Hybrid Azure AD Join vs Workplace Join
Objective 3.3
Microsoft Entra External Identities (B2B)
Objective 3.3
Privileged Identity Management (PIM) in M365
Objective 3.3
Entra ID Access Reviews
Objective 3.3
Identity Governance and Entitlement Management
Objective 3.3
Microsoft Defender for Endpoint in M365
Objective 3.1
Microsoft Sentinel Integration with M365
Objective 3.1
Microsoft Compliance Manager and Score
Objective 3.2
Microsoft Purview Information Protection
Objective 3.4
Records Management in Microsoft 365
Objective 3.4
Communication Compliance in Microsoft 365
Objective 3.4
Insider Risk Management in Microsoft 365
Objective 3.4
Microsoft 365 Privacy Features and Trust Centre
Objective 3.2
Microsoft 365 Governance Policies and Controls
Objective 3.2
Cross-Tenant Access Policies in Entra ID
Objective 3.3
External Sharing in SharePoint and OneDrive
Objective 3.4
Zero Trust Security Principles in Microsoft 365
Objective 3.3
Attack Simulator in Microsoft Defender
Objective 3.1
Anti-Phishing Policies in Microsoft 365
Objective 3.1
Archiving and In-Place Archive in Exchange
Objective 3.4
Securing Microsoft 365 Apps: OAuth and App Consent
Objective 3.3
M365 Data Portability and Export
Objective 3.4
Microsoft 365 Compliance Certifications (ISO, SOC)
Objective 3.2
Azure Information Protection (AIP) Labels
Objective 3.4
15 chapters
Microsoft 365 Licensing Plans
Objective 4.1 · M365 Pricing
Billing and Subscription Management
Objective 4.2 · M365 Pricing
Microsoft 365 Support Options
Objective 4.3 · M365 Pricing
M365 Business Basic, Standard, Premium vs E3/E5
Objective 4.1
Microsoft 365 Backup and Veeam Options
Objective 4.2
FastTrack for Microsoft 365 Deployment
Objective 4.3
Microsoft 365 Service Health Dashboard
Objective 4.3
Microsoft 365 Message Centre and Change Management
Objective 4.3
Microsoft 365 Apps Deployment Models
Objective 4.1
Microsoft 365 Education Plans
Objective 4.1
Microsoft 365 Frontline Worker Features
Objective 4.1
Microsoft 365 Product Lifecycle and End of Life
Objective 4.3
Microsoft 365 Usage Reports and Analytics
Objective 4.2
Microsoft 365 Roadmap and Preview Features
Objective 4.3
Microsoft 365 Admin APIs and Graph API Basics
Objective 4.2
Free MS-900 practice questions with full explanations. Test what you learn chapter by chapter.
MS-900 Practice Questions