Updated for 2026 Exam Objectives

AB-900 Practice Test

The Purview governance and Copilot licensing questions trip most candidates. We prepare you for exactly those.

Our 500 AB-900 questions go deep on DSPM for AI, sensitivity labels, Copilot licensing models, and agent lifecycle management — the exact areas where M365-experienced candidates still fail.

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Is this for you?

Your AB-900 exam is in the next 2-4 weeks
You've studied the concepts but aren't sure you'll pass
You want questions harder than the real exam
You want to understand why answers are correct, not just memorize

This is NOT for you if:

You're looking for braindumps or exam leaks
You haven't started studying the concepts yet
Most successful candidates start practice 2-3 weeks before their exam
Updated for April 2026 exam blueprint

AB-900 Exam Details

What to expect on exam day

Questions

40-60 questions

Duration

60 minutes

Passing Score

700/1000

Exam Cost

$99 USD

Exam Domains Covered

Master all topics tested on the AB-900 exam

1

Identify the core features and objects of Microsoft 365 services (30-35%)

2

Understand data protection and governance tasks for Microsoft 365 and Copilot (35-40%)

3

Perform basic administrative tasks for Copilot and agents (25-30%)

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5 Free AB-900 Questions

See how ready you are for the AB-900 exam. Each question includes a detailed explanation so you learn as you go.

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Why Practice with MSCertQuiz?

Microsoft Learn teaches concepts. We prepare you for the actual exam.

1

Full coverage of M365 admin center, Exchange Online, SharePoint, and Teams administration

2

Deep Purview data governance — DLP, sensitivity labels, Insider Risk, and Compliance Manager

3

Copilot licensing, pay-as-you-go billing, analytics, and agent lifecycle management

4

Updated for the latest 2026 exam objectives — no outdated material

Not sure if you're ready for the AB-900 exam?

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What Our Users Say

95% pass rate — Based on users who completed at least 2 practice exams

“The Purview and Copilot governance questions were exactly what the exam covered. The explanations helped me understand DSPM for AI and Compliance Manager in depth. Passed first try!”

KL

Karen L.

AB-900 Certified

“As an M365 admin, I thought I knew most of this. The Copilot licensing and pay-as-you-go billing questions exposed real gaps in my knowledge. MSCertQuiz filled those gaps perfectly.”

NP

Nathan P.

Microsoft 365 Administrator

“The agent administration and Copilot Analytics questions were detailed and realistic. I passed with 810 — well above the 700 threshold.”

SM

Sophie M.

Passed AB-900 first try

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Official Microsoft Resources

Our practice questions are aligned with official Microsoft exam objectives. We recommend studying with Microsoft Learn first, then using MSCertQuiz to test your readiness.

View Official AB-900 Exam Details

AB-900 Frequently Asked Questions

Everything you need to know about the AB-900 Microsoft 365 Copilot and Administration Fundamentals certification

What is the AB-900 exam?
AB-900 is a Microsoft fundamentals certification that validates knowledge of Microsoft 365 services, data protection and governance for Microsoft 365 and Copilot, and basic administrative tasks for Copilot and agents. It's designed for IT professionals and administrators who work with Microsoft 365 and Microsoft Copilot environments.
How hard is the AB-900 exam?
AB-900 is moderately difficult for most IT professionals — the Purview governance and Copilot licensing domains catch many candidates off guard even with M365 experience. It's a fundamentals-level exam, but topics like DSPM for AI, sensitivity label scoping, and Copilot pay-as-you-go billing require specific study. Expect 2–3 weeks of preparation. Our practice questions are calibrated slightly harder than the real exam so you're over-prepared on test day.
What does AB-900 cover?
AB-900 covers three main domains: Microsoft 365 core services including Exchange Online, SharePoint, Teams, and Entra ID (30-35%); data protection and governance tasks for Microsoft 365 and Copilot including Microsoft Purview, DLP, sensitivity labels, and DSPM for AI (35-40%); and basic Copilot and agent administration including licensing, billing, usage monitoring, and agent lifecycle management (25-30%).
Is AB-900 worth getting in 2026?
Yes. As Microsoft Copilot adoption grows rapidly in enterprises, administrators who understand Copilot governance, data protection, and agent management are in high demand. AB-900 validates the foundational skills needed to manage Copilot deployments responsibly and securely, making it increasingly valuable for M365 administrators.
What score do I need to pass AB-900?
You need 700 out of 1000 to pass. Microsoft uses scaled scoring, so it's not a simple 70%. Our practice tests help you consistently score above 80% so you have a comfortable margin on exam day.
How much does the AB-900 exam cost?
The AB-900 exam costs $99 USD. This is standard pricing for all Microsoft Fundamentals-level certifications. Pricing may vary slightly by region — confirm the current price on the official Microsoft Learn scheduling page before booking. Microsoft occasionally offers free exam vouchers through events like Microsoft Ignite and Microsoft Learn challenges.
Does the AB-900 certification expire?
No. AB-900 is a Fundamentals-level certification and does not expire. Like AZ-900, MS-900, and other Microsoft Fundamentals certifications, it is valid for life once earned. You never need to renew it, though staying current with Microsoft 365 and Copilot developments is always recommended as the platform evolves.
How long should I study for AB-900?
Most candidates need 2–3 weeks of preparation. If you already have Microsoft 365 administration experience, focus on the Copilot governance and Purview domains — these are where M365-experienced candidates most often have gaps. If you're new to M365 entirely, budget 3–4 weeks starting with Microsoft Learn, then use practice tests for the final 1–2 weeks.
What are the prerequisites for AB-900?
There are no formal prerequisites. AB-900 is a Fundamentals-level certification open to anyone. Microsoft recommends familiarity with Microsoft 365 services and basic cloud concepts. Hands-on experience with the Microsoft 365 admin center helps you answer the scenario-based Copilot and Purview questions more confidently.
How is AB-900 different from MS-900?
MS-900 covers Microsoft 365 broadly — cloud concepts, M365 apps, security, compliance, and pricing. AB-900 overlaps significantly on the M365 services domain but adds two areas MS-900 doesn't cover: Microsoft Purview data governance in the context of AI (DSPM for AI, sensitivity labels applied to Copilot), and Copilot and agent administration (licensing models, pay-as-you-go billing, Copilot Analytics, agent lifecycle management). If you've already passed MS-900, AB-900 is a natural next step. If you haven't, AB-900 alone is sufficient for the Copilot administrator path.
Is AB-900 harder than AI-900?
They are comparable in difficulty — both are Fundamentals-level exams — but they test different domains. AI-900 focuses on Azure AI services: machine learning, computer vision, NLP, and generative AI on Azure. AB-900 focuses on Microsoft 365, Purview governance, and Copilot administration. AB-900 will feel harder to Azure-focused candidates who lack M365 experience, and easier for M365 admins new to AI concepts.
What is DSPM for AI in the AB-900 exam?
DSPM for AI (Data Security Posture Management for AI) is a Microsoft Purview feature that detects sensitive data users might share with AI tools including Microsoft Copilot. It surfaces data oversharing risks and integrates with Purview's compliance controls. AB-900 tests your understanding of how DSPM for AI identifies risky interactions and what remediation options administrators have. It's one of the more specific AB-900 topics that Microsoft Learn doesn't cover in depth — making it a common blind spot.

AB-900 Exam Cost 2026

The AB-900 exam costs $99 USD. This is the standard price for all Microsoft Fundamentals-level certifications. Pricing may vary slightly by region — confirm the current price on the official Microsoft Learn scheduling page before booking.

There are no formal prerequisites, and the AB-900 certification does not expire once earned. Microsoft occasionally offers free exam vouchers through events like Microsoft Ignite. At $99, AB-900 is one of the most targeted ways to validate Copilot administration skills as enterprises accelerate Microsoft 365 Copilot deployments.

AB-900 vs MS-900: What's the Difference?

Both certifications cover Microsoft 365, but they serve different purposes. Here's how to decide which one to take:

AB-900MS-900
FocusM365 + Copilot governance + AI data protectionM365 apps, cloud concepts, pricing, security basics
Unique topicsDSPM for AI, Copilot licensing, agent administration, Copilot AnalyticsCloud service models (IaaS/PaaS/SaaS), Teams/Exchange/SharePoint overview
Best forM365 admins managing Copilot deploymentsAnyone new to Microsoft 365 or cloud services
Cost$99 USD$99 USD
Expires?NoNo

If you've already passed MS-900, AB-900 is the logical next step. If you haven't taken either, AB-900 alone is sufficient for the Copilot administrator path.

AB-900 Exam Topics: Domain Breakdown

Domain 1: Microsoft 365 Core Services

30–35%

Exchange Online, SharePoint Online, Microsoft Teams, OneDrive for Business, Microsoft Entra ID basics, Microsoft 365 admin center tasks.

Domain 2: Data Protection and Governance

35–40%

Microsoft Purview DLP policies, sensitivity labels, Insider Risk Management, Compliance Manager, DSPM for AI (data oversharing risks in Copilot), eDiscovery basics.

Domain 3: Copilot and Agent Administration

25–30%

Copilot licensing models (per-user vs. pay-as-you-go), Copilot Analytics, Microsoft Copilot Studio agent lifecycle (create, publish, manage), agent governance and data connections.

Also Preparing For

Candidates studying AB-900 often prepare for these certifications next.

MS-900

Microsoft 365 Fundamentals

Practice test →MS-102

Microsoft 365 Administrator

Practice test →SC-300

Microsoft Identity and Access Administrator

Practice test →