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Free AB-900 practice test
Know why every answer is right or wrong.
What AB-900 covers: Microsoft 365 Services, Admin Centers, Identity, And Access (38%) • Data Protection, Governance, Compliance, And Responsible AI (36%) • Copilot Administration, Agents, Usage, Billing, And Adoption (26%)
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AB-900
Microsoft 365 Copilot and Agent Administration Fundamentals (AB-900)
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- A real AB-900 question first, not a wall of copy
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Which of the following is true regarding Agent Builder in Microsoft 365 Copilot?
A. Correct: This because Agent Builder offers an immediate, interactive AI development experience that's perfect for quick and straightforward projects.
B. Incorrect: This because Agent Builder is designed to be accessible without requiring advanced programming skills.
C. Incorrect: This because Agent Builder is not available on mobile versions of the apps and sites listed in the article.
D. Incorrect: This because you can test the agent before deploying it for use in your conversations with Microsoft 365 Copilot.
Which Data access governance activity report tracks sites where content was shared with Everyone except external users in the last 28 days?
A. Correct: The EEEU activity report tracks sites where content was shared broadly with internal users in the last 28 days.
B. Incorrect: The site permissions report is a snapshot report that shows the current permission structure, not recent EEEU activity.
C. Incorrect: The sensitivity label for files report identifies labeled content, not EEEU sharing activity.
D. Incorrect: Site access review is a remediation action, not the activity report that tracks EEEU sharing.
You are tasked with evaluating your organization's identity security posture and receiving recommendations for improvement. Which Microsoft Entra feature would you use to achieve this?
A. Incorrect: App registrations are used for managing applications that your organization uses, not for evaluating security posture.
B. Incorrect: PIM is used to manage and monitor privileged access within the organization but does not provide a dashboard for overall identity security evaluation.
C. Incorrect: Sign-in logs allow you to review user sign-in activities but do not offer insights or recommendations for improving the security of your identity environment.
D. Correct: Identity Secure Score provides a dashboard with insights and recommendations for improving the security posture of your identity environment.
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Which admin center is required to assign Microsoft 365 Copilot licenses?
A. Correct: The Microsoft 365 admin center is used to assign Copilot licenses, as mentioned in the .
B. Incorrect: The SharePoint admin center is used for specific tasks related to SharePoint but not for assigning Copilot licenses.
C. Incorrect: The Microsoft Purview portal is involved in data governance and compliance but not directly in assigning Copilot licenses.
D. Incorrect: Microsoft Entra ID (AAD) manages identities and access but does not handle the assignment of Microsoft 365 Copilot licenses.
Which Microsoft Purview feature applies labels that stay with files and emails so protection can travel with the content?
A. Correct: Sensitivity labels travel with the labeled content and can keep protection attached to the file or email.
B. Incorrect: DLP applies policies to detect and protect sensitive data, but it is not the labeling feature that stays with the content.
C. Incorrect: Information Barriers restrict collaboration paths rather than labeling content.
D. Incorrect: Insider Risk Management investigates risky activity, not content labeling that travels with files and emails.
Which section of the Microsoft 365 admin center allows you to create and manage groups such as Microsoft 365 group, Teams, distribution group, security group, or shared mailbox?
A. Incorrect: Manage users focuses on adding, deleting, or resetting passwords for individual users rather than creating groups.
B. Correct: It directly allows you to create and manage different types of groups such as Microsoft 365 group, Teams, distribution group, security group, or shared mailbox.
C. Incorrect: Roles are related to assigning built-in roles in Microsoft Entra ID for access control rather than creating groups.
D. Incorrect: Billing handles financial aspects like viewing and managing subscriptions but does not involve the creation of groups.
In the Microsoft 365 admin center, which page shows how many Microsoft 365 Copilot licenses are available before you assign them?
A. Correct: Billing > Licenses shows the available licenses for the product before assignment.
B. Incorrect: Active users is where admins manage licenses for specific users after choosing the product licenses to assign.
C. Incorrect: Settings & options does not show the product license inventory used for Copilot assignment.
D. Incorrect: Security & compliance is unrelated to reviewing available Copilot license quantities.
Which of the following best describes how Microsoft 365 Copilot ensures it does not overshare sensitive information within an organization?
A. Incorrect: This because Microsoft 365 Copilot operates within existing permissions and access controls, preventing oversharing of sensitive information.
B. Correct: This because while data residency rules are important for compliance, they do not directly address the issue of oversharing sensitive information.
C. Incorrect: This because although encryption is crucial for protecting user communications, it does not specifically prevent oversharing based on existing permissions and access controls.
D. Incorrect: This because while a multi-layered security approach is part of Microsoft's defense-in-depth strategy, it is not the primary control that prevents oversharing.
As a Microsoft 365 administrator, which action is prohibited when attempting to assign licenses for a subscription purchased by an individual user through self-service?
A. Incorrect: Assigning licenses directly from the Active Users page is allowed as long as it's not for a self-service purchase subscription.
B. Incorrect: Taking over and managing a purchase or trial subscription allows you to assign or unassign licenses after taking control of the subscription.
C. Incorrect: Adding users and assigning licenses simultaneously can be done through the admin center, but this option does not address the limitation with self-service purchases.
D. Correct: Cannot assign licenses for a self-service purchase subscription because administrators are restricted from modifying these subscriptions directly.
When setting up Microsoft 365 Copilot pay-as-you-go billing, what is the initial step an administrator needs to take to configure usage-based pricing for specific scenarios?
A. Incorrect: This because enabling user access is not the initial step; it follows after setting up the billing policy.
B. Incorrect: This because setting spending budgets and turning off services are management actions, not setup steps.
C. Correct: This because adding a billing policy is the first required step to initiate pay-as-you-go billing.
D. Incorrect: This because understanding adoption patterns is part of evaluating usage but not an initial setup action.
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238 verified questions are currently in the live bank. Questions updated at May 13, 2026, 5:25 AM CDT. The daily set rotates at 10:00 AM local time, and each explanation links back to the source used to write it. Use the web set for quick practice, then switch to the app when available for larger banks and deeper review.
AB-900 is most useful when your work touches Microsoft 365 Copilot, agent administration, governance, adoption, or business-side AI rollout.
- Role examples: Microsoft 365 administrator, Copilot rollout lead, enablement specialist, and business systems analyst.
- Where it shows up: AI adoption, productivity tooling, M365 administration, governance, and internal enablement.
- On-the-job payoff: you need to explain where Copilot and agent controls fit inside the Microsoft stack.
- Typical next step: It sits well beside AI-901 and the business-AI Microsoft exams when adoption and governance matter more than model engineering.
AB-900 is really an administration-and-governance exam. It rewards knowing where Microsoft 365 Copilot and agent controls fit inside the stack, not broad AI theory.
- Current emphasis in this bank: Microsoft 365 Services, Admin Centers, Identity, And Access (38%).
- Slow down on questions where Copilot features sound similar but the real distinction is tenant control, admin scope, security posture, or rollout responsibility.
- Best official starting point: Microsoft Certified: Microsoft 365 Copilot and Agent Administration Fundamentals.
The fastest path is to turn this exam into a repeatable pattern-recognition loop instead of a one-time cram session.
- Start with the free daily set closed-book so you can see which parts of the cloud and it lane still feel weak.
- Use every explanation as a checkpoint for why the right answer fits the scenario and why the other answer choices do not.
- Open the official Microsoft source when a concept keeps missing so you fix the gap at the source instead of rereading generic notes.
- Use the nearby cert pages when you need broader context around the same job path or technology stack.
The usual misses happen when learners recognize keywords but do not slow down enough to match the scenario to the exact decision the exam is testing.
- Reading for one familiar keyword and skipping the deeper clue that tells you which cloud and it concept actually fits.
- Memorizing isolated terms without checking why the right answer wins over the other answer choices in the same scenario.
- Ignoring the official Microsoft source after a miss and hoping the next question will feel easier on its own.
- Studying this page in isolation when one nearby cert page could clear up the broader pattern much faster.
The fastest path is simple: answer the set, review the reasoning, then use the score history and source links to decide what to hit next.
- Answer the free set first without looking anything up so the score reflects what is actually sticking.
- Read every explanation, especially the wrong answer choices, so the weaker options stop looking plausible next time.
- Open the linked source when a concept feels weak, then come back and repeat the question flow while the wording is fresh.
- Use the 7-day score keeper, related cert links, and comparison pages to decide what to study next instead of guessing.
- Move into the app when you want the full bank, timed reps, readiness tracking, and a steadier mobile study loop.
Use these official Microsoft resources alongside the daily practice set. They cover the provider's own exam page, study guide, or prep material.
Need adjacent Microsoft practice pages too? Microsoft practice hub.
How are AB-900 questions generated?
dotCreds builds AB-900 practice questions from Microsoft Learn documentation and product references, with official or primary sources preferred first. The questions are written for realistic study practice, not copied from exam dumps.
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Each question includes a source-backed explanation and a link to the documentation or reference used to validate the answer. If an official page is too broad, dotCreds uses a reputable answer-level reference instead of pretending a generic page proves the answer.
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The page tracks today's answered count and accuracy for the 10-question daily set, then saves a 7-day score history on this device so you can see your recent practice trend.
Why use this site?
The site is the fastest way to start AB-900 practice without installing anything. It is built for daily recall, quick weak-topic discovery, and source-backed explanations you can review immediately.
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The web page is the quick free sampler. If a dotCreds app is available for AB-900, the app is better for larger banks, focused weak-domain drills, longer review sessions, and mobile study routines.