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About the Microsoft AB-900 exam
Microsoft AB-900 certifies the fundamentals of administering Microsoft 365 Copilot and agents, from licensing and adoption monitoring to the Microsoft Purview controls that keep tenant data safe once Copilot can read it. The exam runs 45 minutes and weights data protection and governance most heavily of the three skill areas. This course covers all three with practice questions, flashcards and interactive tasks.
10
Sample questions
45 min
Exam time limit
70%
Practice pass mark
$99
Exam voucher
Exam AB-900 is Microsoft's fundamentals certification for administering Microsoft 365 Copilot and agents. Microsoft last updated the skills measured on 22 July 2026, and the shape of the exam catches out anyone who assumes a Copilot exam is mostly about Copilot. The largest area is data protection and governance for Microsoft 365 and Copilot at 35 to 40 percent, and most of that is Microsoft Purview: sensitivity labels, data loss prevention, Insider Risk Management, Communication Compliance, retention, and Data Security Posture Management for AI. Identifying the core features and objects of Microsoft 365 services takes another 30 to 35 percent, spanning the Microsoft 365, Exchange, SharePoint, Teams and Entra admin centers along with conditional access, single sign-on, Privileged Identity Management and Identity Secure Score. Only 25 to 30 percent is the Copilot and agent administration most candidates expect to dominate: assigning licenses, managing pay-as-you-go billing, monitoring usage and adoption, and creating, approving and monitoring agents. That weighting is why people who revise Copilot features alone come up short. If you cannot say how Copilot inherits SharePoint permissions, or which tool surfaces oversharing before a tenant-wide rollout, you are exposed on two thirds of the exam. You get 45 minutes and you need 700 out of 1000 to pass. The exam may include interactive components, and fundamentals exams give you no access to Microsoft Learn while you sit them. AB-900 fits administrators and support staff who have been asked to switch Copilot on for a tenant and keep the data inside it safe.
Exam Domains Covered
Exam Format & Details
45 minutes. Passing score is 700 on a scale of 1 to 1000, which the site shows as 70 percent. Microsoft does not publish a fixed question count for AB-900; its own guidance says most certification exams contain between 40 and 60 questions. The exam is proctored and may include interactive components such as drag and drop and build list items. Unlike Microsoft's role-based exams, fundamentals exams give you no access to Microsoft Learn while you sit them. Book through Pearson VUE, or through Certiport if you are a student or educator. US list price is 99 USD, and the price you pay depends on the country or region where the exam is proctored.
Why Practice Questions Matter
AB-900 keeps asking you to identify the right admin center, the right Purview tool, or the right control for a stated requirement. Reading about sensitivity labels and DSPM for AI does not build the recall that format needs. Practice questions do, because each one forces the same choice the exam forces and then tells you why the near-miss answer was wrong. The weighting matters as much as the volume: with 35 to 40 percent of the exam sitting on data protection and governance, a bank distributed to match the blueprint keeps your revision on Purview instead of on the Copilot features that are more enjoyable to read about.
Sample Practice Questions
The following questions are a preview of the type of syllabus-aligned questions you will practise in CertCrush. They reflect the format and reasoning style of the Microsoft AB-900 exam — not actual exam content.
Q1.A Copilot licence has been purchased and now needs to reach twelve named users. Which path in the Microsoft 365 admin center opens the page where the licence is assigned?
- A.Billing > Licenses > Microsoft Copilot
- B.Reports > Usage > Microsoft Copilot
- C.Settings > Org settings > Services > Copilot
- D.Copilot > Settings > User access
Domain: Copilot and Agent Administration
Q2.An exam option points an administrator at a Researcher usage report. Why is that option wrong?
- A.No dedicated usage report exists for Researcher and Analyst
- B.The report exists but only Global Administrators can open it
- C.The report is in the Agent Registry rather than the Copilot node
- D.The report appears only after a billing policy is connected
Domain: Copilot and Agent Administration
Q3.Nine of the eleven default permission levels can be edited or removed. Which two cannot be customised or deleted? Select two.
- A.Full Control
- B.Limited Access
- C.Edit
- D.Design
- E.Read
Domain: Microsoft 365 Core Features and Objects
Q4.A contractor from a partner organization signs in to your tenant as a guest and asks to be given Copilot. What is the correct answer?
- A.Copilot licences cannot be assigned to guests or other cross-tenant users, so the contractor needs an account in your tenant
- B.Add the guest to a licensed security group so group-based licensing grants the licence
- C.Purchase an additional Copilot licence and assign it directly to the guest account
- D.Grant the guest the AI Administrator role, which includes Copilot access
Domain: Copilot and Agent Administration
Q5.By default, how are user identities presented to investigators inside Insider Risk Management?
- A.Pseudonymised, with an artificial identifier shown in place of the name
- B.Shown as the full display name to anyone with portal access
- C.Shown as the user principal name but hidden from audit logs
- D.Hidden permanently, with no way to reveal the real identity
Domain: Data Protection and Governance for Copilot
Frequently Asked Questions
What is included in the free Microsoft AB-900 sample?
The free sample includes 10 syllabus-aligned practice questions, sample flashcards, and a preview chapter from the study guide. No account or payment is required to try the sample.
How many questions are in the full Microsoft AB-900 course?
The full course includes a comprehensive question bank covering all exam domains. You can see the total question count on the Microsoft AB-900 course page.
Are these official Microsoft exam questions?
No. CertCrush questions are independently written and syllabus-aligned — they mirror the format, difficulty, and reasoning style of the official exam. We are not affiliated with or endorsed by Microsoft.
Which domains does the Microsoft AB-900 course cover?
The course covers 3 exam domains: Microsoft 365 Core Features and Objects, Data Protection and Governance for Copilot, Copilot and Agent Administration.
Can I study on mobile?
Yes. CertCrush is fully responsive and works on phones, tablets, and desktops. The timed exam, flashcards, and study guide all work on mobile without installing an app.
What happens when I create an account?
Creating a free account lets you access full courses, track your weak areas by domain, and resume practice sessions across devices. No credit card is required to register.