MS-900 Describe Microsoft 365 apps and services Practice Question
Your organization, Contoso Ltd., uses Microsoft 365 E5 licenses and has 10,000 users. The company is planning to deploy Microsoft Copilot for Microsoft 365 to all users. The IT department has identified the following requirements: 1. Users must be able to use Copilot across Microsoft Teams, Word, Excel, PowerPoint, and Outlook. 2. Copilot must be able to access user data from Exchange Online, SharePoint Online, and Microsoft Graph. 3. The deployment must comply with the company's data residency policy, which requires that all data processed by Copilot remains within the European Union (EU). 4. The company wants to use a phased rollout, starting with a pilot group of 500 users. Which configuration should the IT administrator implement to meet these requirements?
⚠ Common exam trap
Candidates often confuse Microsoft Purview's compliance features with the Copilot-specific data residency setting in the Microsoft 365 admin center, or assume that a separate tenant is required for regional data residency, when in fact a single tenant can enforce EU data residency via the admin center configuration.
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Assign Microsoft Copilot for Microsoft 365 licenses to the pilot group, and in the Microsoft 365 admin center, configure the data storage location to 'EU'.
The Microsoft 365 admin center provides a tenant-level setting to configure the data storage location for Microsoft Copilot for Microsoft 365, ensuring all processed data remains within the EU. Assigning licenses to the pilot group enables the phased rollout, while the data residency setting satisfies the compliance requirement without needing a separate tenant or manual user configuration.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Assign Microsoft Copilot for Microsoft 365 licenses to the pilot group, and in Microsoft Purview, create a data residency policy that restricts data to the EU.
Why it's wrong here
Assigning Copilot licenses to a pilot group is the right idea, but creating a 'data residency policy' in Microsoft Purview is the wrong mechanism. Purview is a governance, compliance, and information-protection suite; it does not control where tenant data is stored. The data storage location for the tenant (including Copilot's underlying data) must be configured in the Microsoft 365 admin center under Settings > Org settings > Security & privacy > Data location. Therefore this option fails because it uses the wrong portal for the residency setting.
- ✗
Enable Microsoft Copilot for Microsoft 365 in the Microsoft 365 admin center for all users, then ask each user to customize their Copilot permissions in Graph.
Why it's wrong here
Enabling Copilot for all users at once contradicts the phased, pilot-group approach, and there is no per-user 'Copilot permissions' customization in Graph. In reality, you control who gets Copilot by assigning or withholding the Copilot for Microsoft 365 license via group-based licensing, and permissions to Microsoft Graph data are governed by tenant-wide admin roles (e.g., the Copilot administrator role), not by individual users. Also, there is no separate 'enable in admin center' toggle that selectively applies to some users; the license assignment itself is the enablement mechanism. Thus this option mismanages both rollout scope and the permission model.
- ✓
Assign Microsoft Copilot for Microsoft 365 licenses to the pilot group, and in the Microsoft 365 admin center, configure the data storage location to 'EU'.
Why this is correct
This is the correct approach because it combines the right licensing strategy (assign the Copilot add-on license to a pilot group for phased rollout) with the correct data-residency configuration. The tenant's data storage location is set in the Microsoft 365 admin center under Settings > Org settings > Security & privacy > Data location, and choosing 'EU' ensures that core data, including Copilot-related data, is stored at rest in Microsoft's European datacenters. Because this setting is at the tenant level, it applies to all users, which is exactly what a pilot rollout needs before broader deployment.
- ✗
Create a separate Microsoft 365 tenant in the EU region, move pilot users to that tenant, and assign Copilot licenses there.
Why it's wrong here
Creating a separate EU tenant is an unnecessarily heavy-handed solution and does not reflect how Microsoft 365 data residency actually works. The existing tenant's storage location can be set to EU via the admin center, so a new tenant is not required to meet residency requirements. Additionally, moving pilot users to a new tenant would sever their existing identities, domains, and access to already-provisioned services, forcing you to manage two tenants for a simple, phased pilot. A single tenant with the data-location setting is the intended, far less disruptive path.
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Key term
Copilot for Microsoft 365
Copilot for Microsoft 365 is an AI assistant integrated into Microsoft 365 apps that helps users create documents, analyze data, summarize communications, and automate tasks using natural language prompts.
Key term
Microsoft 365 admin center
The Microsoft 365 admin center is a web-based portal where IT administrators manage users, subscriptions, security, and settings for an organization's Microsoft 365 services.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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