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Microsoft Certified Fundamentals

AB-900 Practice Exam: Copilot and Agent Administration Fundamentals

Fundamentals of Microsoft 365 Copilot and agent administration: core concepts, security, compliance and governance. 559 original questions with detailed explanations, smart review and progress tracking. Independent prep resource, not affiliated with Microsoft.

559
Questions
50
Per exam
70%
Pass mark
3
Domains

AB-900 exam domains

M365 concepts and security
30-35%
Data security and compliance
35-40%
Copilot and agent administration
25-30%

Why practice with EarnYourCert

Detailed explanations on every question, not just the right answer.
Smart spaced-repetition review (SRS) to reinforce what you get wrong.
Progress tracking per domain and over time.
Free to start, no sign-up required.

AB-900 sample questions

Five real questions from our 559-question bank. Try to answer before revealing the solution.

1. Which tool would you use to review administrative actions performed across SharePoint, Exchange, and Teams from a central location?

  1. Mail flow rules
  2. Entra Sign-in diagnostics
  3. Microsoft Purview Audit
  4. Viva Insights Copilot Analytics
Show answer

Correct answer: C. Microsoft Purview Audit centralizes logging of user and admin activity across all M365 workloads. Sign-in diagnostics is for authentication, Copilot Analytics for adoption, and mail flow rules for routing.

2. An organization needs to centrally assign Microsoft 365 licenses to employees. Which admin center does it use?

  1. The Microsoft Teams admin center
  2. The Microsoft Purview compliance portal
  3. The Microsoft 365 admin center
  4. The Microsoft Defender security portal
Show answer

Correct answer: C. Licenses are centrally assigned in the Microsoft 365 admin center. Teams manages teams, Purview manages compliance, and Defender manages security.

3. Complete the sentence: Microsoft Purview Information Protection consists of, among others, [___].

  1. The mailboxes, the distribution lists, and the accepted domains of the current tenant
  2. The teams, the channels, and the chats that users create to collaborate in their daily work
  3. PIM, Conditional Access, and the Identity Secure Score that Microsoft Entra offers for identity
  4. Data classification, sensitivity labels, and the Information Protection scanner
Show answer

Correct answer: D. Information Protection includes data classification, sensitivity labels, and the scanner. The other options are Exchange/Teams objects or identity features.

4. Your org wants only the Marketing department to generate PAYG agent charges. How do you configure this?

  1. Apply a retention policy to the content the Marketing department generates
  2. Create a PAYG billing policy scoped to a specific security group (Marketing)
  3. Create a sensitivity label for Marketing and apply it to its content
  4. Assign E5 licenses only to the users in the tenant's Marketing department
Show answer

Correct answer: B. A PAYG policy scoped to a specific security group restricts consumption charges to that group. E5, labels, and retention do not control PAYG billing scope.

5. An admin needs to enable or disable access to Microsoft 365 Copilot Chat for certain users. What primarily controls this access?

  1. A retention label that controls how long the conversations are kept
  2. The license assignment and the Copilot settings in the Microsoft 365 admin center
  3. A DLP policy that detects and blocks sensitive content in the user's prompts
  4. The Microsoft Defender portal, via a threat protection policy
Show answer

Correct answer: B. Access to Copilot experiences is managed via license assignment and Copilot settings in the Microsoft 365 admin center. DLP, retention, and Defender do not control Copilot Chat access.

Frequently asked questions

How many questions does the AB-900 practice exam have?

The question bank has 559 original questions. Each practice exam draws 50 questions weighted by domain, just like the official exam.

What's the passing score for AB-900?

Microsoft's official AB-900 exam requires a score equivalent to 70% to pass. We use the same threshold in our practice exams so you train under realistic conditions.

What domains does the AB-900 exam cover?

Three domains: M365 concepts and security (30-35%), data security and compliance (35-40%), and Copilot and agent administration (25-30%).

Is the AB-900 practice exam free?

Yes, you can practice for free without signing up. Creating a free account adds progress tracking and smart review (SRS); the Pro tier removes daily question limits.

Are these the official Microsoft exam questions?

No. These are original questions written based on Microsoft's official "Skills measured" guide for AB-900, not extracts from the real exam or "exam dumps".