What Is the MS-900?

The Microsoft 365 Fundamentals (MS-900) is the entry-level Microsoft certification for cloud productivity. It validates understanding of Microsoft 365 services and cloud concepts, Microsoft Entra ID and identity management, security and compliance capabilities in Microsoft 365, Microsoft 365 pricing models and licensing, and key Microsoft 365 apps including Teams, Exchange Online, SharePoint, OneDrive, and Intune. Ideal for IT admins, sales professionals, business analysts, and decision-makers starting their Microsoft cloud journey.

Cloud Concepts & Microsoft 365 Core Services

1 week

Cloud service models — IaaS, PaaS, SaaS and shared responsibility

Microsoft 365 tenant concept — isolated instance, custom domain

Exchange Online — email, calendar, shared mailboxes

Microsoft Teams — chat, meetings, channels, files, apps

SharePoint Online vs OneDrive for Business differences

Microsoft 365 SLA — 99.9% uptime, service health dashboard

Identity & Access Management

1 week

Microsoft Entra ID (Azure AD) — cloud identity vs on-premises AD

Hybrid identity with Entra Connect — Password Hash Sync, PTA, Federation

Multi-Factor Authentication (MFA) — factors, Microsoft Authenticator

Conditional Access — Zero Trust policy engine

Group types — M365 Group, Security Group, Distribution Group

Single Sign-On (SSO) to thousands of SaaS applications

Security & Compliance

1 week

Microsoft 365 Defender — XDR platform combining endpoint, email, identity, CASB

Microsoft Defender for Office 365 — Safe Links, Safe Attachments, anti-phishing

Microsoft Intune — MDM, MAM, BYOD scenarios, Conditional Access integration

Microsoft Purview — sensitivity labels, DLP, retention policies, eDiscovery

Compliance Manager — regulatory assessments, compliance score, improvement actions

Microsoft Secure Score — security posture measurement and improvement

Defender for Cloud Apps (CASB) — shadow IT discovery, anomaly detection

Microsoft Sentinel — cloud SIEM and SOAR platform

📚 Recommended Study Resources

Microsoft Learn (Free)

learn.microsoft.com — official MS-900 learning path is free, comprehensive, and aligned to the exam objectives

John Christopher (Udemy)

"MS-900 Microsoft 365 Fundamentals" — well-structured course with practice tests and updated for exam changes

Microsoft Official Practice Test

MeasureUp official practice test — closest to real exam question format with 150+ questions

MS-900 Study Guide

Microsoft's free MS-900 exam study guide PDF outlines exact skills measured and exam percentage weighting

Ready to Test Your Knowledge?

Take our MS-900 practice exam covering M365 services, identity, Entra ID, security, compliance, and licensing

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💼 Microsoft 365 Fundamentals (MS-900)

What Is the MS-900?

Cloud Concepts & Microsoft 365 Core Services

Identity & Access Management

Security & Compliance

Licensing, Pricing & Additional Services

📚 Recommended Study Resources

Microsoft Learn (Free)

John Christopher (Udemy)

Microsoft Official Practice Test

MS-900 Study Guide

Ready to Test Your Knowledge?