AB-900 Microsoft 365 Copilot and Agent Administration Fundamentals Questions and Answers

The correct answer is View all the users in the Microsoft Entra tenant . In the exhibit, John is assigned the Global Reader role. Microsoft documents that the Global Reader role is intended for users who need to view administrator features and settings in admin centers that a Global Administrator can view, but without edit permissions. That makes it appropriate for read-only visibility into tenant-wide directory and admin information, including users in Microsoft Entra.

The other answer choices are not supported by the Global Reader role. Microsoft distinguishes admin-center visibility from access to content in workloads such as SharePoint sites and Exchange mailboxes . Global Reader is a read-only administrative role, not a content access role for reading all documents or mailbox items. Likewise, performing eDiscovery of Microsoft 365 Copilot prompts requires Purview eDiscovery permissions or role group membership, not merely the Global Reader role. Microsoft documents eDiscovery permissions separately in Purview role groups.

Therefore, based on the assigned role shown, the valid completion is that John can view all the users in the Microsoft Entra tenant .

The correct selections are Yes, No, Yes . Microsoft states that Microsoft 365 Copilot inherits the security, compliance, and privacy policies already configured in Microsoft 365, including Microsoft Purview sensitivity labels and other compliance controls. That makes statement 1 Yes . Microsoft also explains that Copilot respects existing access controls and compliance boundaries rather than bypassing them.

Statement 2 is No because Microsoft 365 Copilot does not ignore Microsoft Purview DLP . Microsoft documents that Copilot honors the protections applied to the underlying content and works within Microsoft 365’s existing compliance framework. DLP remains part of the environment governing how sensitive data is protected and shared.

Statement 3 is Yes because Microsoft clearly states that Copilot only surfaces content that a user is already authorized to access through existing Microsoft 365 permissions . Copilot uses Microsoft Graph to ground responses, but it does not grant new permissions or expose content outside the user’s allowed scope. Therefore, the correct hotspot answers are Yes , No , and Yes .

The correct selections are No, Yes, Yes . Microsoft documents that the Audit page in the Microsoft Defender portal can be used to search the unified audit log for user and admin actions in the organization. Microsoft also states that audit log search in the Defender portal is the same as audit log search in the Microsoft Purview portal , which means both portals can be used to review administrative actions taken in Microsoft 365.

Microsoft further explains that Microsoft Purview Audit enables organizations to search for audit records of activities that users and admins perform across Microsoft services, making it a correct tool for this requirement.

By contrast, Search & intelligence in the Microsoft 365 admin center is not the feature used to investigate administrator actions through the unified audit log. It is not Microsoft’s documented audit search tool for this purpose. Therefore, for this hotspot the right answers are No for Search & intelligence, Yes for Audit in Microsoft Defender, and Yes for Audit in Microsoft Purview.

In Microsoft 365 Copilot, you should use the Researcher agent to perform multi-step reasoning over unstructured data.

The correct answer is the Researcher agent . Microsoft describes Researcher in Microsoft 365 Copilot as an agent for complex, multi-step research that can reason across information sources and synthesize findings into structured outputs. That aligns with the phrase multi-step reasoning in the question. Microsoft’s guidance also contrasts Researcher with Analyst , which is aimed more at data analysis and spreadsheet-oriented tasks.

The other options are less suitable. Chat is general-purpose and not the specialized tool Microsoft positions for deeper multi-step research workflows. A notebook is used to organize materials and chats, not as the main reasoning engine for this scenario. The Analyst agent is better suited to structured data analysis, trends, and calculations rather than broad reasoning over unstructured data such as documents, notes, and mixed content. Based on Microsoft’s product positioning, the best fit for multi-step reasoning over unstructured information is the Researcher agent .

The correct answer is D. the Microsoft 365 admin center . Microsoft Learn states that users with a Microsoft 365 Copilot license can use Copilot capabilities, and Microsoft specifically points administrators to the Microsoft 365 admin center and its setup guidance to assign the required licenses to users. Microsoft also documents that the Researcher and Analyst agents were deployed to existing users with Microsoft 365 Copilot licenses and that administrators govern these agents through the Microsoft 365 admin center .

The other portals are not the primary place for this task. Microsoft Entra admin center focuses on identity and access, Microsoft Purview focuses on compliance and governance, and Microsoft Defender focuses on security operations and threat protection. None of those is the main admin experience Microsoft documents for assigning Microsoft 365 Copilot access and managing the availability of Researcher and Analyst. Because the goal is to enable a user to use Microsoft 365 Copilot and its Microsoft-provided agents, the correct administrative tool is the Microsoft 365 admin center .

You can use a Microsoft Entra security group to assign permissions to Microsoft Entra ID resources. Answer: Yes

You can use a Microsoft Entra security group to assign Microsoft 365 licenses. Answer: Yes

You can use a Microsoft Entra security group to assign permissions to Microsoft Exchange mailboxes. Answer: No

The correct answer is C. Microsoft Graph . Microsoft documents that Microsoft 365 Copilot combines large language models with content and context from the Microsoft Graph to generate grounded responses. Microsoft Graph provides access to organizational data and signals across Microsoft 365 services, including SharePoint , OneDrive , Exchange , Teams , calendars, chats, files, and other work content. When SharePoint data is relevant to the prompt and the user already has permission to access it, Copilot uses Microsoft Graph as the layer that retrieves and grounds that corporate data for the response.

The other options are incorrect for this question. Microsoft Intune is used for endpoint and device management. Microsoft Defender is used for threat protection and security operations. Microsoft Purview provides compliance, governance, data protection, and risk management capabilities. While Copilot honors Purview protections and Microsoft 365 permissions, the specific service it uses to access and ground responses in SharePoint-based corporate data is Microsoft Graph . Therefore, the correct answer is Microsoft Graph .

The correct answer is A. Microsoft 365 Copilot Chat. The requirement specifically asks for unlicensed users who used Copilot in Microsoft Teams. That points to Copilot Chat usage, not the standard Microsoft 365 Copilot licensed-user report. Microsoft’s usage documentation distinguishes Copilot Chat activity, including Copilot Chat work and web experiences, and lists Microsoft Teams as an entry point where users can access Copilot Chat. Microsoft also states that the Microsoft 365 Copilot usage report’s user-level table is scoped to users who were licensed for Microsoft 365 Copilot, which makes it the wrong report for identifying unlicensed Copilot Chat users. Microsoft 365 Apps and Copilot Search reports do not target this Teams Copilot Chat usage scenario.

The correct answer is B. the Microsoft 365 admin center . Microsoft documents that administrators assign product licenses to users from the Microsoft 365 admin center , including on the Active users page where you can open a user account and manage Licenses and apps . Microsoft also documents license assignment workflows there for both direct assignment and group-based licensing scenarios. That makes the Microsoft 365 admin center the standard administrative portal for giving a user access to Microsoft 365 services and features.

The other options are incorrect for this task. The Microsoft Purview portal is used for compliance, governance, data protection, eDiscovery, audit, and related Purview solutions, not for assigning Microsoft 365 product licenses. The Microsoft Teams admin center is used to manage Teams settings, policies, devices, voice, and collaboration features, but it is not the central portal for assigning tenant product licenses to users.

Therefore, when the requirement is simply to assign a license to a user in a Microsoft 365 subscription, Microsoft’s documented answer is the Microsoft 365 admin center .

The correct answer is Microsoft Defender XDR . Microsoft Learn defines Microsoft Defender XDR as a unified pre- and post-breach enterprise defense suite that natively coordinates detection, prevention, investigation, and response across endpoints, identities, email, and applications to provide integrated protection against sophisticated attacks. That wording matches the sentence in the question almost exactly, which makes this the clearly correct choice.

The other options do not fit that definition. Microsoft Entra Conditional Access is Microsoft’s Zero Trust policy engine used to evaluate signals and enforce access policies, not a cross-domain threat detection and response suite. Microsoft Entra ID Protection focuses on detecting and responding to identity risks such as risky sign-ins and risky users. Microsoft Purview is Microsoft’s portfolio for data governance, data security, and compliance. None of those products is described by Microsoft as coordinating detection, prevention, investigation, and response across endpoints, identities, email, and applications in the same integrated XDR manner. Therefore, the only answer that correctly completes the sentence is Microsoft Defender XDR .

The correct selections are Yes, Yes, No. Microsoft Purview sensitivity labels are used to classify and protect organizational data. Microsoft documents that sensitivity labels can protect content such as documents and emails, and it explicitly states that documents and emails can have sensitivity labels applied. Microsoft also supports sensitivity labels for containers, including Microsoft Teams, Microsoft 365 Groups, SharePoint sites, Viva Engage communities, and Loop workspaces. Therefore, a SharePoint site can be labeled, and an Exchange email message can be labeled. Windows 11 devices are different: they are managed and protected through endpoint management and security solutions such as Microsoft Intune and Microsoft Defender for Endpoint. Sensitivity labels apply to supported content and containers, not directly to Windows device objects.

The correct answers are A and D . Microsoft documents that with group-based licensing , licenses assigned to a group are automatically inherited by the group’s members. Therefore, if User1 is added to Group1 , User1 can receive the Microsoft 365 E3 license through group membership. Microsoft also documents that licenses can be assigned directly to individual users , so assigning a Microsoft 365 E3 license straight to User1 is also a complete solution.

Options B and C are incorrect because Conditional Access controls how users access cloud resources after sign-in; it does not grant product entitlements or service licenses. Microsoft licensing guidance separates access-policy controls from actual license assignment. In this scenario, the issue is lack of license entitlement, not access conditions. As a result, the valid solutions are either to make User1 a member of the licensed group or to assign the license directly to User1. Microsoft also notes that group-based licensing assignment can fail if required user properties such as usage location are missing, but among the available answer choices, the two complete license-granting actions are Add User1 to Group1 and Assign a license to User1 .

the Microsoft Authenticator app

The correct answer is the Microsoft Authenticator app . The image shows the familiar Microsoft MFA prompt that says “Are you trying to sign in?” and “Enter the number shown to sign in.” Microsoft documents this as number matching in Authenticator push notifications , which is part of Microsoft Entra multifactor authentication using the Microsoft Authenticator app . Microsoft explains that number matching is a security improvement for Authenticator push approvals and is used when the default sign-in method is Authenticator push notifications.

The other choices do not match the experience shown. Email OTP would involve a one-time code sent by email. SMS would send a text message code to a phone number. Temporary Access Pass is a time-limited passcode used for onboarding or recovery scenarios, not the mobile push screen shown in the image. Because the graphic specifically shows a mobile approval prompt with number matching, the MFA method is clearly the Microsoft Authenticator app .

Communications Compliance uses OCR (optical character recognition) and machine learning to detect offensive or risky text inside images , including those in SharePoint and OneDrive.

By default, Communications Compliance pseudonymizes user identities to reduce investigator bias. Admins can later deanonymize if needed.

It does not add disclaimers. It silently monitors communications and flags policy violations; disclaimers are handled by Exchange transport rules, not Communications Compliance.

The correct selections are Yes, Yes, Yes . For statement 1, Microsoft Support explains that if you are not a site owner, you might still be able to invite other people to the site , although the invitation can generate an access request that a site owner approves or declines. Microsoft also states that site users have the opportunity to invite other people to collaborate on sites , unless that feature is disabled. That makes the statement true.

For statement 2, Microsoft Learn states that in SharePoint you can give people permissions to a site by adding individual users, security groups, or Microsoft 365 groups to one of the three SharePoint groups, including the Members group. That directly supports the statement.

For statement 3, Microsoft documents that site ownership and membership can be managed by adding or removing owners, members, site owners, site members, and site visitors . For group-connected sites, Microsoft also documents that owners can manage group ownership and remove owner status. Therefore, a site owner can remove another site owner, provided at least one owner remains.

The correct answer is D. a sensitivity label policy . In Microsoft Purview, creating a sensitivity label by itself does not make it available to users. Microsoft Learn states that after you create sensitivity labels, you must publish them by creating a label policy so that users and groups can see and apply those labels in Microsoft 365 apps and services. Publishing controls which labels are available and to whom they are shown. This is why a sensitivity label policy is required to ensure that users can apply Label1 to files.

The other options do not meet the requirement. Auto-labeling policies apply labels automatically when content matches conditions, but they are not the primary mechanism for simply making a label available for user selection. A trainable classifier is used to identify content categories, not to publish a label. A retention label policy publishes retention labels for records and lifecycle purposes, which is different from sensitivity labeling for classification and protection. Therefore, the correct Microsoft-documented method to let users apply Label1 to files is to publish it using a sensitivity label policy .

To use Microsoft 365 Copilot Chat to reason over web data, you need a Microsoft 365 Copilot license. Answer: No

To use the Researcher agent in Microsoft 365 Copilot, you need a Microsoft 365 Copilot license. Answer: Yes

To add an agent in the Microsoft 365 Copilot app, you need a Microsoft 365 Copilot license. Answer: No

The correct selections are No, Yes, No . Microsoft documents that Microsoft 365 Copilot Chat is available at no additional cost for eligible Entra account users with qualifying Microsoft 365 licenses, and that it includes secure AI chat grounded in the web . That means a separate Microsoft 365 Copilot add-on license is not required just to use Copilot Chat over web data.

Statement 2 is Yes because Microsoft states that Researcher is part of the core default experience for Microsoft 365 Copilot licensed users . In other words, access to the Researcher agent requires the Microsoft 365 Copilot license.

Statement 3 is No because Microsoft documents that users can access agents and create them in the Microsoft 365 Copilot app through Copilot Chat, and Microsoft 365 service descriptions state that web-grounded agents are available at no extra cost for commercial users with a qualifying Microsoft 365 license. A Copilot add-on license is required for certain advanced capabilities, but not simply to add an agent in the app in general.

provide control over how users can access cloud apps.

The correct answer is provide control over how users can access cloud apps . Microsoft Learn defines Microsoft Entra Conditional Access as the Zero Trust policy engine that uses if-then logic to make access decisions. Microsoft states that Conditional Access policies determine who can access resources, what resources they can access, and under what conditions . These policies can require actions such as multifactor authentication, compliant devices, or other controls before allowing access to applications and services like Microsoft 365. That means Conditional Access is specifically used to control how users access cloud apps .

The other options are incorrect. Conditional Access policies are not configured by using the Microsoft Defender portal ; they are managed in the Microsoft Entra admin center . They are also not applied only to on-premises resources , because Microsoft documents Conditional Access primarily for cloud identities, cloud apps, and cloud-connected resources. Finally, Conditional Access does not require a Microsoft Exchange mailbox. It can be applied broadly across many Microsoft and third-party cloud applications integrated with Microsoft Entra.

The correct answers are C and D . Microsoft Learn explains that agents created with Agent Builder in Microsoft 365 Copilot allow you to define specific instructions that extend Microsoft 365 Copilot for a business scenario. Microsoft also documents that you can add knowledge sources such as specific public websites and SharePoint content so the agent can reason over targeted information instead of relying only on the default chat experience. Those two capabilities directly match the needs in options C and D.

Option A is incorrect because grouping chats is a Copilot notebook scenario, not the reason to build an agent. Option B is incorrect in the context of creating an agent in the Microsoft 365 Copilot app . Agent Builder supports declarative agents with instructions, knowledge, and capabilities, but Microsoft Learn describes custom AI model control as part of custom engine agents built with tools such as Copilot Studio, SDKs, or Foundry, not as a standard Agent Builder feature in the Microsoft 365 Copilot app. Therefore, when the task is specifically to create an agent in the app, the valid reasons are custom instructions and reasoning over a specific website .