MS-900 Practice Question: Describe Microsoft 365 pricing, licensing, and support
Your organization has 500 users and needs to comply with data residency requirements in the EU. You plan to purchase Microsoft 365 E3 subscriptions. Which licensing option should you choose to ensure data is stored only in EU datacenters?
⚠ Common exam trap
A common mix-up: candidates assume higher-tier plans like E5 automatically include all compliance features, but data residency requires a specific add-on regardless of the base plan tier.
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
✓
Microsoft 365 E3 with Data Residency add-on
Microsoft 365 E3 with the Data Residency add-on ensures that customer data at rest is stored only in EU datacenters, meeting EU data residency requirements. The base Microsoft 365 E3 subscription does not guarantee EU-only storage; the add-on provides the necessary data location commitment and compliance controls.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Microsoft 365 Business Basic
Why it's wrong here
Microsoft 365 Business Basic is a small-business plan that provides core productivity apps and email, but it intentionally omits the advanced compliance features required for regulated data, such as eDiscovery, legal hold, and data loss prevention (DLP). It also lacks the Premium Compliance capabilities and does not support Microsoft's Data Residency add-on, so customer data may be stored in any datacenter region, failing geographic residency mandates. With 500 users and explicit compliance needs, this plan is not a viable option.
- ✓
Microsoft 365 E3 with Data Residency add-on
Why this is correct
Microsoft 365 E3 combined with the Data Residency add-on is the correct choice because E3 natively includes the full compliance suite—eDiscovery, retention policies, sensitivity labels, and DLP—while the add-on guarantees that content at rest is stored within the specified geographic boundary (e.g., EU datacenters). This pairing meets both the functional compliance tooling and the data residency requirement without paying for advanced security capabilities that are unnecessary for this scenario. It also includes Windows and Enterprise Mobility + Security, which Office 365 E3 lacks.
- ✗
Office 365 E3
Why it's wrong here
Office 365 E3 offers many compliance tools, but it is a productivity-only suite that excludes Windows Client and Enterprise Mobility + Security components. More critically, it does not inherently guarantee data residency; any residency assurance would require separate, potentially complex add-on purchases, and even then, coverage may be limited to specific workloads. Although Office 365 E3 can meet some regulatory requirements, the separate add-on and the absence of integrated endpoint management make it a less comprehensive option than Microsoft 365 E3 for a 500-user organization focused on compliance.
- ✗
Microsoft 365 E5
Why it's wrong here
Microsoft 365 E5 is unnecessarily expensive for this requirement. While E5 provides the most advanced security features—like Microsoft Defender for Identity, Insider Risk Management, and Advanced eDiscovery—the organization's stated requirement is simply to comply with data residency rules, which E3 with the Data Residency add-on already satisfies. E5 also requires a substantial per-user licensing investment, and without the Data Residency add-on, it does not by itself guarantee geo-residency either. Therefore, E5 addresses a broader set of compliance and security needs but is overkill and not the most technically or financially appropriate answer here.
Go deeper
Related to this question
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Retention Labels and Compliance
Key term
Microsoft 365
Microsoft 365 is a subscription-based cloud service from Microsoft that combines productivity tools like Office apps with security, device management, and online storage.
Key term
Subscription
A subscription is a payment model where you pay a recurring fee to access a product or service instead of buying it once and owning it forever.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This MS-900 practice question is part of Courseiva's free Microsoft certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the MS-900 exam.