MS-900 Describe Microsoft 365 apps and services Practice Question
Which of the following are included as part of Microsoft 365 E3 or E5 subscriptions? Choose all that apply. (There are four correct answers.)
⚠ Common exam trap
Microsoft often tests the misconception that Azure AD Premium P1 is the only identity tier in E3/E5, but E5 actually includes P2, and that Microsoft 365 Personal is a valid enterprise license, when it is a consumer-only product.
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 Teams
Microsoft 365 E3 and E5 subscriptions include Microsoft Teams as a core collaboration service, Exchange Online with a 100 GB mailbox and unlimited archive storage via auto-expanding archiving, Windows 10/11 Enterprise E3 for device management and security, and Microsoft Defender for Office 365 (in E5, and as an add-on for E3 but included in the E5 suite). These are standard components of the enterprise-grade plans.
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 Teams
Why this is correct
Microsoft Teams is a fully integrated collaboration hub that is automatically included in every Microsoft 365 E3 and E5 subscription. It provides persistent chat, online meetings, calling, and file sharing through SharePoint and OneDrive, with no separate licensing or additional fees. Teams is a core application in the enterprise bundle, ensuring organizations can deploy modern communication without purchasing a standalone product.
- ✓
Exchange Online with 100 GB mailbox and unlimited storage via archiving
Why this is correct
Exchange Online is a fundamental workload in Microsoft 365 E3/E5, providing enterprise-grade email, calendaring, and compliance features. Every user mailbox receives a 100 GB primary quota, and when you enable the included online archive, the archive mailbox uses auto-expanding archiving that can scale to effectively unlimited storage. These archiving capabilities are part of the subscription, so you don't need to add a separate Exchange Online Archiving license.
- ✓
Windows 10/11 Enterprise E3
Why this is correct
Microsoft 365 E3 and E5 include a license for Windows 10/11 Enterprise E3, which is Microsoft's advanced desktop operating system designed for large organizations. It adds enterprise-specific security and management features such as Windows Update for Business, AppLocker, Microsoft BitLocker Administration, and Credential Guard, which are not available in Windows Pro or Home. This entitlement is bundled directly into Microsoft 365, eliminating the need for a separate Windows Enterprise agreement.
- ✓
Microsoft Defender for Office 365
Why this is correct
Microsoft Defender for Office 365 is included in both E3 and E5, with the E5 plan providing the more advanced Plan 2 capabilities such as Threat Explorer, Attack Simulation Training, and automated incident response. Even in E3, you get essential email protection features like Safe Links, Safe Attachments, and anti-phishing policies that safeguard against malware and zero-day threats in Exchange Online, SharePoint Online, and Teams. This service is part of the subscription, so no add-on purchase is required.
- ✗
Azure Active Directory Premium P1 only (not P2)
Why it's wrong here
This statement is incorrect because it suggests that only Azure Active Directory Premium P1 is included across Microsoft 365 E3 and E5, but that depends on the edition. While E3 includes Azure AD Premium P1, E5 actually includes Azure AD Premium P2, which adds identity protection and privileged identity management capabilities. Since the question asks about both E3 and E5, the blanket claim of 'P1 only' is false for E5, making this option wrong.
- ✗
Microsoft 365 Personal (single user) license
Why it's wrong here
Microsoft 365 Personal is a consumer-grade subscription designed for single users and home use, not a business or enterprise plan. It is not included as part of Microsoft 365 E3 or E5 subscriptions; rather, E3/E5 are separate enterprise offerings that include business-grade security, compliance, and admin controls. Even if a user holds a Microsoft 365 Personal license, it cannot be used as a substitute for or within an E3/E5 enterprise tenant because those plans require a different licensing model and identity management with Azure AD.
Go deeper
Related to this question
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Cloud Service Types for MS-900
Key term
Office 365
Office 365 is a cloud-based subscription service from Microsoft that provides access to productivity applications like Word, Excel, and Outlook, along with other cloud services, for a monthly or annual fee.
Key term
Defender for Office 365
Microsoft Defender for Office 365 is a cloud-based email security service that protects organizations against advanced threats like phishing, malware, and business email compromise by scanning emails, attachments, and links in real time.
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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.