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AB-650 Exam Questions & Answers

Administering Microsoft 365 and AI Services  •  Microsoft

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Sample AB-650 Questions

Practice with real exam-style questions, each with the verified correct answer and explanation.

Q1 MultipleChoice

You have a Microsoft 365 E5 subscription that uses Microsoft Exchange. The subscription contains a mail-enabled security group named Group1 and a user named User1.

User1 has a mailbox named Mailbox1 that is 42 GB in size.

User1 is transferred to a new role and will no longer use Mailbox1.

You need to modify Mailbox1 to meet the following requirements:

Preserve access to historical email.

Enable the users in Group1 to open Mailbox1.

Enable the Group1 users to send email messages that appear to be sent from Mailbox1.

Which two actions should you perform? Each correct answer presents part of the solution.

NOTE: Each correct selection is worth one point.

Correct Answer: B, C
Explanation:

Microsoft Exchange Online supports converting an existing user mailbox to a shared mailbox while retaining its historical email content. This is appropriate when the original user no longer needs direct access but other employees must continue using the mailbox.

Option C is correct because converting Mailbox1 into a shared mailbox preserves the existing email messages and enables delegated access for other users.

The mailbox contains 42 GB of data, which is below the standard 50 GB unlicensed shared mailbox limit. Therefore, an additional mailbox license is not required solely because of its current size, provided no separately licensed features are necessary.

Option B is correct because Full Access permission allows Group1 members to open the mailbox and manage existing items. Send As permission enables them to send messages that appear to originate directly from Mailbox1.

Option E is incorrect because Send on Behalf permission displays the individual delegate's identity, whereas the requirement specifies that messages must appear to come from Mailbox1.

Option D is incorrect because Litigation Hold is designed for preservation and compliance purposes, not for providing collaborative mailbox access.

Option A is unnecessary for a standard shared mailbox of this size.

Therefore, converting the mailbox and granting Full Access and Send As permissions satisfies all three requirements.

Microsoft Reference:

https://learn.microsoft.com/microsoft-365/admin/email/convert-user-mailbox-to-shared-mailbox

https://learn.microsoft.com/en-us/exchange/collaboration/shared-mailboxes/create-shared-mailboxes

Q2 MultipleChoice

You have a Microsoft 365 subscription that uses Microsoft 365 Copilot. The subscription contains a SharePoint site named Site1 and a security group named Group1.

Site1 contains sensitive project documents. Some users that are outside of Group1 have direct permissions or sharing links to the documents in Site1.

You need to ensure that only the users in Group1 can open the Site1 documents. The solution must meet the following requirements:

The Group1 users must require existing SharePoint permissions to access the documents.

Authorized users must continue to access the documents by using Microsoft 365 Copilot.

Existing SharePoint permissions must be preserved.

What should you configure?

Correct Answer: B
Explanation:

Microsoft SharePoint Restricted Access Control enables administrators to restrict access to a SharePoint site and its content to members of designated Microsoft Entra security groups or Microsoft 365 groups.

Option B is correct because Restricted Access Control adds an additional authorization requirement without replacing the site's existing SharePoint permissions.

When Group1 is configured as the restricted access control group for Site1, users must satisfy two conditions before accessing its documents: they must belong to Group1 and possess appropriate existing SharePoint permissions.

Users outside Group1 are denied access even when they previously received direct permissions or sharing links.

This protection also applies to Microsoft 365 Copilot and organization-wide search experiences. Microsoft Copilot respects the effective SharePoint authorization boundaries, preventing unauthorized users from accessing restricted content through Copilot responses.

Option A is incorrect because Microsoft 365 Archive is intended for inactive content storage rather than enforcing group-based authorization.

Option C is incorrect because Restricted SharePoint Search controls content discoverability, not the underlying ability to open files.

Option D is incorrect because Restricted Content Discovery limits search and Copilot discovery without enforcing the required group-based access restrictions.

Restricted Access Control therefore satisfies the complete requirement while preserving the existing permission structure.

Microsoft Reference:

https://learn.microsoft.com/en-us/sharepoint/restricted-access-control

Q3 MultipleChoice

You have a Microsoft 365 E5 subscription.

You create a data loss prevention (DLP) policy named DLP1.

You need to ensure that endpoint rule actions are available in the advanced DLP rules for DLP1.

To which location should you apply DLP1?

Correct Answer: C
Explanation:

Microsoft Purview Endpoint Data Loss Prevention (Endpoint DLP) protects sensitive information on managed endpoint devices. To make endpoint-specific rule actions available when configuring advanced DLP rules, the policy must include the Devices location.

Endpoint DLP enables organizations to monitor and restrict how users interact with sensitive information on supported Windows and macOS devices. Its policy actions can control activities such as copying sensitive files to USB storage, printing documents, transferring files through network shares, and uploading information through supported applications or browsers.

When administrators select Devices as the DLP policy location, the relevant endpoint-specific conditions and actions become available for rule configuration.

Option A, Instances, relates to connected cloud application instances and does not activate endpoint DLP rule actions.

Option B, On-premises repositories, applies to information protection scenarios involving on-premises data repositories rather than endpoint activity controls.

Option D, OneDrive accounts, enables DLP protection for files stored in OneDrive for Business but does not provide the endpoint-specific controls required by the question.

Therefore, DLP1 must be applied to the Devices location to expose and configure endpoint rule actions.

Microsoft Reference:

https://learn.microsoft.com/en-us/purview/endpoint-dlp-create-policy-device-scoping

Q4 MultipleChoice

You have a Microsoft 365 subscription that contains a Microsoft SharePoint communication site named Site1 and a security group named Group1.

Some users that are outside of Group1 have direct permissions or sharing links to the content in Site1.

You need to ensure that users can access Site1 and its content only when they meet both of the following conditions.

The user is a member of Group1.

The user has SharePoint permissions to the content.

The solution must meet the following requirements:

Apply only to Site1.

Preserve the existing SharePoint permissions.

Minimize administrative effort.

What should you do?

Correct Answer: C
Explanation:

Microsoft SharePoint Restricted Access Control (RAC) provides an additional authorization boundary for SharePoint sites. It restricts site and content access to members of designated Microsoft Entra security groups or Microsoft 365 groups while preserving existing SharePoint permissions.

Option C is correct because configuring Restricted Access Control for Site1 and specifying Group1 satisfies both conditions simultaneously. Users must belong to Group1 and already possess appropriate SharePoint permissions. Membership in Group1 alone does not grant access.

Users outside Group1 are denied access even if they have direct permissions or previously received sharing links. Restricted Access Control can be configured for an individual communication site without modifying its existing permission assignments.

Option A is incorrect because sharing restrictions primarily control sharing operations rather than comprehensively enforcing the existing-content access boundary required.

Option B is incorrect because Restricted Content Discovery limits content visibility in organization-wide search and Microsoft 365 Copilot but does not prevent users with existing permissions from directly accessing files.

Option D is incorrect because manually changing SharePoint permissions could achieve access restrictions but would violate the requirement to preserve existing permissions and minimize administrative effort.

Therefore, configuring Restricted Access Control specifically for Site1 is the appropriate solution.

Microsoft Reference: Microsoft Learn --- Restrict SharePoint site access.

Q5 MultipleChoice

You have a Microsoft 365 subscription.

You need to create a data loss prevention (DLP) policy that is configured to use the Set headers action.

To which location can the policy be applied?

Correct Answer: B
Explanation:

Microsoft Purview Data Loss Prevention (DLP) policies support different actions depending on the Microsoft 365 workload to which a policy is applied. Administrators must select a supported location before configuring a particular DLP action.

Option B is correct because the Set headers action is supported specifically for Exchange Online email.

This action allows administrators to add or modify an email message header when the message matches the conditions of a DLP rule. For example, an organization can configure a rule that detects sensitive financial information and adds a custom header indicating that the email requires additional handling.

Microsoft documents Set headers as a non-halting action, meaning it does not automatically stop subsequent DLP rule processing.

Option A is incorrect because OneDrive policies govern files and sharing activities rather than Exchange transport message headers.

Option C is incorrect because SharePoint DLP policies primarily protect stored documents and control access to sensitive content.

Option D is incorrect because Teams chat and channel messages do not expose the Exchange-specific Set headers action.

Therefore, the DLP policy must include the Exchange email location to support Set headers.

Microsoft Reference: Microsoft Learn --- Data Loss Prevention policy reference.

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Frequently Asked Questions

The AB-650 is Microsoft's certification exam for Administering Microsoft 365 and AI Services. It validates the skills needed to manage Microsoft 365 tenants, configure services, and implement AI solutions within an enterprise environment.

This exam is designed for IT administrators, system administrators, and professionals responsible for managing Microsoft 365 environments and deploying AI services. It's ideal for those with experience in cloud administration and enterprise technology management.

The exam covers Microsoft 365 administration, AI service integration, security and compliance, user and group management, tenant configuration, and monitoring. It also includes content on implementing and managing Microsoft Copilot and other AI services within Microsoft 365.

Microsoft recommends studying official training materials, taking practice exams, and gaining hands-on experience with Microsoft 365 and AI services. You can use Microsoft Learn modules, official documentation, and authorized training courses to prepare effectively.

The passing score for the AB-650 exam is typically 700 out of 1000 points, though Microsoft may adjust this score based on exam difficulty. You should check the official Microsoft certification website for the most current passing score requirements.
Exam Details
  • Exam CodeAB-650
  • VendorMicrosoft
  • Total Questions90
  • LanguageEnglish
  • Last UpdatedOct 19, 2026
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