Review Microsoft MS-900 replacement guidance, Microsoft 365 fundamentals practice options, and current recommended alternatives such as AB-900, SC-900, and PL-900.
MS-900 retired on March 31, 2026. This page stays live for candidates who still search the older Microsoft 365 Fundamentals exam code.
If your goal is Microsoft 365 Copilot and agent administration fundamentals, start with AB-900 . If your goal is security, compliance, identity, or Power Platform fundamentals, compare SC-900 and PL-900 before studying.
Practice option: Legacy route
Start with the 12 sample questions on this page. Dedicated practice for MS-900 replacement guidance is not currently included as a full web-app practice page; enter your email to get updates when full practice becomes available or expands for this exam.
Need live practice now? See AB-900 Microsoft 365 Copilot and Agent Administration Fundamentals.
| Area | Practical focus |
|---|---|
| Old MS-900 recognition | Use this page to translate older Microsoft 365 Fundamentals preparation into current Microsoft route choices. |
| Copilot and agent administration | Use AB-900 when your target is Microsoft 365 Copilot and agent administration fundamentals. |
| Security, compliance, and identity | Use SC-900 when your fundamentals goal is security, compliance, and identity. |
| Business-app fundamentals | Use PL-900 when your fundamentals goal is Power Platform, Dataverse, apps, and automation. |
| If you need practice now | Start here |
|---|---|
| AB-900 Microsoft 365 Copilot and Agent Administration Fundamentals | Best comparison if your old MS-900 search is now about Copilot, agents, tenant readiness, and administration fundamentals. |
| SC-900 Security Fundamentals | Best comparison if your fundamentals need is security, compliance, and identity. |
| PL-900 Power Platform Fundamentals | Best comparison if your fundamentals need is business apps, Dataverse, and automation. |
| Microsoft 365 hub | Use this if you need Microsoft 365 admin, Teams, endpoint, or Copilot exam context. |
Try these 12 original exam-selection questions for Microsoft MS-900. They are designed to help you recognize older Microsoft 365 Fundamentals scope and choose the current exam; they are not official exam questions.
Topic: cloud concepts
A company wants productivity services without managing Exchange or SharePoint servers. Which Microsoft 365 value is most relevant?
Best answer: A
Explanation: MS-900 focuses on Microsoft 365 fundamentals. The cloud service model reduces infrastructure management for productivity workloads.
What this tests: Recognizing Microsoft 365 cloud-service value.
Topic: identity basics
A user should sign in once and access Outlook, Teams, and SharePoint with the same organization identity. What enables this?
Best answer: B
Explanation: Microsoft 365 relies on Microsoft Entra ID for identity, authentication, and access to cloud services.
What this tests: Understanding identity in Microsoft 365.
Topic: collaboration services
A team needs persistent chat, meetings, channels, and file collaboration. Which Microsoft 365 service is the closest fit?
Best answer: C
Explanation: Teams is the collaboration hub for chat, meetings, channels, apps, and files in Microsoft 365.
What this tests: Matching user needs to Microsoft 365 services.
Topic: security and compliance
A business needs to protect sensitive files and apply retention policies. Which Microsoft 365 area should be reviewed?
Best answer: D
Explanation: Microsoft 365 includes information protection, compliance, auditing, and retention capabilities. These are core MS-900 themes.
What this tests: Recognizing Microsoft 365 security and compliance areas.
Topic: licensing
A user cannot access a Microsoft 365 service that other users can use. What should an admin verify first?
Best answer: A
Explanation: Licensing and service-plan assignment determine access to many Microsoft 365 workloads.
What this tests: Understanding basic licensing behavior.
Topic: endpoint and device management
A company wants to manage device compliance and app protection for Microsoft 365 access. Which product area is relevant?
Best answer: B
Explanation: Microsoft Intune supports device management, compliance, and app protection policies.
What this tests: Connecting endpoint management to Microsoft 365 access.
Topic: admin centers
An administrator needs to manage users, licenses, and service settings. What should they use?
Best answer: C
Explanation: Microsoft 365 administration is performed through the Microsoft 365 admin center and specialized admin centers.
What this tests: Recognizing Microsoft 365 administration surfaces.
Topic: service health
Users report that Teams meetings are failing across the tenant. What should an admin check?
Best answer: D
Explanation: Service health can show Microsoft-side incidents or advisories, while tenant settings can reveal local issues.
What this tests: Checking service health and tenant impact.
Topic: shared responsibility
In Microsoft 365, what remains a customer responsibility?
Best answer: A
Explanation: Cloud services shift infrastructure work to Microsoft, but customers still manage identities, access, data, and configuration.
What this tests: Understanding shared responsibility.
Topic: Copilot readiness
A company wants Microsoft 365 Copilot later. What should be prepared first?
Best answer: B
Explanation: Copilot quality and safety depend on existing Microsoft 365 data and permission hygiene.
What this tests: Recognizing Copilot readiness basics.
Topic: support path
A user bought a subscription but sees a locked feature. What should be checked?
Best answer: C
Explanation: Access issues are often account, license, subscription, or service-state problems.
What this tests: Troubleshooting basic Microsoft 365 access.
Topic: route fit
A candidate is new to Microsoft 365 services, identity, licensing, and cloud productivity. Which route is closest?
Best answer: A
Explanation: MS-900 was the Microsoft 365 Fundamentals route, but it is retired. The safest current answer is to translate the old fundamentals intent into the appropriate current Microsoft route.
What this tests: Choosing the Microsoft 365 fundamentals route.
Use this map to connect older Microsoft 365 Fundamentals preparation to current Microsoft route choices.
flowchart LR
S1["Cloud productivity need"] --> S2
S2["Identify Microsoft 365 services"] --> S3
S3["Review identity and security basics"] --> S4
S4["Understand compliance and privacy"] --> S5
S5["Compare pricing and support"] --> S6
S6["Choose current Microsoft route"]
| Cue | What to remember |
|---|---|
| Service families | Recognize Microsoft 365 productivity, collaboration, endpoint, identity, security, and compliance services. |
| Cloud concepts | Know SaaS, shared responsibility, availability, updates, and subscription models. |
| Identity | Understand tenants, users, groups, MFA, Conditional Access, and Microsoft Entra basics. |
| Compliance | Recognize Purview, retention, eDiscovery, audit, and information protection at a high level. |
| Commercial basics | Review licensing, support, service lifecycle, and admin-center responsibilities. |
Use this page to review legacy exam context, use the Notify me form if your team still references MS-900, and compare related IT Mastery pages before studying.