Free Microsoft 365 Copilot and Agent Administration Fundamentals AB-900 practice questions 2026: 20 questions without signup

1350 practice questions for Microsoft 365 Copilot and Agent Administration Fundamentals AB-900, grouped by exam domain. Every question below shows all four options, which one is correct, and why each of the other three is not — the wrong answers are where most candidates lose marks.

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Questions by domain

• Understand data protection and governance tasks for Microsoft 365 and Copilot — 513 questions →
• Identify the core features and objects of Microsoft 365 services — 446 questions →
• Perform basic administrative tasks for Copilot and agents — 391 questions →

Sample questions

A sensitivity label applied to the report: Which capability best explains the observed behavior?

1. A communication compliance policy reviewing messages.

   Communication Compliance reviews configured communications for policy violations rather than labeling finance reports.
2. A sensitivity label applied to the report. ✓

   Sensitivity labels classify content and can display markings or apply configured protection to the labeled report.
3. A retention policy controlling document preservation.

   Retention controls preservation or deletion and does not explain a visible confidentiality classification marking.
4. A DLP policy detecting sensitive information.

   DLP detects configured conditions and may alert or block, but it does not primarily apply confidentiality classification markings.

All 513 Understand data protection and governance tasks for Microsoft 365 and Copilot questions →

Check the employee’s license assignment and provisioning: What should the administrator check first?

1. Assign Global Administrator so every Microsoft 365 feature becomes available.

   Administrative roles govern management actions and do not replace required product licenses.
2. Check the employee’s license assignment and provisioning status. ✓

   A license enables entitled features, while provisioning status confirms the service became available.
3. Create a distribution group so the employee receives the licensed service.

   Distribution groups distribute mail and do not assign licenses or provision Microsoft 365 services.
4. Add the employee as a SharePoint site owner to activate service access.

   SharePoint ownership controls site permissions and does not activate an employee’s product entitlement.

All 446 Identify the core features and objects of Microsoft 365 services questions →

Connect the billing policy to the supported Copilot: What should the administrator diagnose first?

1. Increase the pay-as-you-go budget notification threshold for the finance group.

   Budget notifications do not enable service access, and changing thresholds cannot create metered usage.
2. Grant every finance user full SharePoint site permissions and remove the billing policy scope.

   Source permissions are separate, while removing policy scope would not activate pay-as-you-go service access.
3. Replace the monthly licenses with a larger monthly Copilot license assignment.

   Monthly licensing does not activate an unconnected pay-as-you-go policy or explain absent metered service access.
4. Connect the billing policy to the supported Copilot service. ✓

   A billing policy requires connection to a supported Copilot service before scoped metered access and charges can occur.

All 391 Perform basic administrative tasks for Copilot and agents questions →

A retention policy or retention label: Which capability should govern preservation?

1. A retention policy or retention label. ✓

   Retention policies and labels govern preservation or deletion, while sensitivity labels address confidentiality separately.
2. A DLP rule detecting sensitive plan content.

   DLP detects sensitive-content conditions and applies configured actions, but it does not define retention duration.
3. A sensitivity label applied to the plans.

   Sensitivity labels address classification and protection, not the required preservation or deletion schedule.
4. A SharePoint Visitors permission level.

   Visitors permissions control access to site content and do not preserve or delete content on a schedule.

All 513 Understand data protection and governance tasks for Microsoft 365 and Copilot questions →

Verify Exchange plan provisioning: What should the administrator verify?

1. Distribution-group membership

   Distribution groups distribute messages and do not create individual user mailboxes.
2. SharePoint site ownership for the research team

   SharePoint ownership provides site permissions and does not create an Exchange mailbox.
3. Verify Exchange plan provisioning ✓

   The Exchange service plan must be enabled and provisioned for the licensed user.
4. A Teams policy allowing private-channel creation

   Teams channel policies do not provision Exchange Online mailboxes.

All 446 Identify the core features and objects of Microsoft 365 services questions →

Enable Researcher in the applicable Copilot feature: Which action addresses the missing prerequisite?

1. Enable Researcher in the applicable Copilot feature control. ✓

   The team already has licensing and provisioning, so enabling the feature control addresses the stated prerequisite.
2. Assign another SharePoint site role to researchers.

   SharePoint permissions govern source access, not whether the Researcher feature is enabled for users.
3. Add all researchers to a billing policy and connect it to SharePoint agents.

   Pay-as-you-go configuration concerns supported metered services, not a disabled Researcher feature control.
4. Create a custom research agent with equivalent instructions and connected knowledge sources.

   A custom agent is an alternative capability, not the missing prerequisite for enabling Researcher.

All 391 Perform basic administrative tasks for Copilot and agents questions →

Copilot used content already available through: What should the administrator conclude?

1. The summary shows that Copilot ignored the file's permission settings.

   Copilot is not expected to bypass permissions when retrieving organizational content through Microsoft Graph.
2. Copilot used content already available through the employee's permissions. ✓

   Copilot can ground responses in organizational content available through Microsoft Graph under the signed-in user's permissions.
3. The Copilot license expanded the employee's SharePoint permissions.

   A Copilot license provides product entitlement but does not change the employee's permissions on the file.
4. Copilot indexed the file for all sales users.

   Using accessible content for one response does not make that content available to all sales users.

All 513 Understand data protection and governance tasks for Microsoft 365 and Copilot questions →

Configure site membership and permissions so only: Which action best meets the stated requirement?

1. Set permissions separately on each document folder containing product plans.

   Folder permissions can protect selected content but may leave other site content accessible.
2. Apply a sensitivity label to the site and assume every file is automatically labeled.

   A site label does not automatically label every file or establish complete site membership control.
3. Create a document library and use unique permissions for its product-plan files.

   Library permissions restrict that library, but they do not secure unrelated content across the site.
4. Configure site membership and permissions so only the project group can access the site. ✓

   Site-level permissions establish the required access boundary for all content within the product-planning site.

All 446 Identify the core features and objects of Microsoft 365 services questions →

Microsoft 365 Copilot and Agent Administration Fundamentals AB-900 exam: the facts

What topics does the Microsoft 365 Copilot and Agent Administration Fundamentals AB-900 exam cover?

3 domains: Understand data protection and governance tasks for Microsoft 365 and Copilot, Identify the core features and objects of Microsoft 365 services, Perform basic administrative tasks for Copilot and agents. Weights: Understand data protection and governance tasks for Microsoft 365 and Copilot 38%, Identify the core features and objects of Microsoft 365 services 33%, Perform basic administrative tasks for Copilot and agents 29%.

How many Microsoft 365 Copilot and Agent Administration Fundamentals AB-900 practice questions does Certsqill have?

1350, spread across 3 exam domains. Every one shows all options, which is correct, and why each of the others is not.