MS-900 Practice Question: Describe Microsoft 365 pricing, licensing, and support
This MS-900 practice question tests your understanding of describe microsoft 365 pricing, licensing, and support. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
A multinational organization has a Microsoft 365 E5 subscription for 10,000 users. Some users in a subsidiary require only email and basic office apps. The IT department wants to reduce costs by reassigning licenses without losing any existing functionality for those users. What is the most cost-effective licensing strategy?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Downgrade those users to Microsoft 365 E3 licenses
Option B is correct because Microsoft 365 E3 provides the same core functionality as E5—Exchange Online, SharePoint, Teams, and desktop Office apps—but lacks E5's advanced security and analytics features (e.g., Microsoft Defender for Office 365 Plan 2, Microsoft Purview, Power BI Pro). Downgrading users who need only email and basic Office apps to E3 reduces per-user licensing cost while preserving all required functionality, making it the most cost-effective strategy.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
✗
Keep all users on E5 but reduce the number of licenses
Why it's wrong here
This does not address the requirement to reduce costs for specific users.
✓
Downgrade those users to Microsoft 365 E3 licenses
Why this is correct
E3 provides email and Office apps at a lower cost than E5.
Related concept
Read the scenario before looking for a memorised answer.
✗
Switch to Microsoft 365 E1 licenses for those users
Why it's wrong here
E1 does not include desktop Office apps.
✗
Assign Microsoft 365 Business Basic licenses to those users
Why it's wrong here
Business Basic does not include desktop Office apps, which are required.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates may assume E1 is sufficient because it includes Exchange Online and web apps, but they overlook the explicit requirement for 'basic office apps'—which in Microsoft's licensing context means the desktop Office suite, available only in E3/E5 or Business versions, not in E1.
Detailed technical explanation
How to think about this question
Microsoft 365 E3 includes the Office 365 E3 suite plus Enterprise Mobility + Security (EMS) E3, providing identity and device management via Azure AD P1 and Intune, but excludes E5's advanced threat protection (e.g., Microsoft Defender for Office 365 Plan 2, Microsoft Sentinel) and compliance features (e.g., Microsoft Purview Audit (Premium), Communication Compliance). In real-world scenarios, organizations often use E3 as a baseline for users who need standard productivity tools, reserving E5 for high-value or security-sensitive roles, which can reduce licensing costs by up to 30% while maintaining compliance with Microsoft's licensing terms.
KKey Concepts to Remember
Read the scenario before looking for a memorised answer.
Find the constraint that changes the correct option.
Eliminate answers that are true in general but not in this case.
TExam Day Tips
→Watch for words such as best, first, most likely and least administrative effort.
→Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
How this comes up in practice
A startup's cloud architect reviews their monthly bill and notices costs are higher than expected for a long-running batch job. Switching from on-demand instances to Reserved Instances — or using Spot/Preemptible VMs — can reduce compute costs by up to 72 %. Questions like this test whether you understand the tradeoffs between commitment, flexibility, and cost across cloud pricing models.
Related glossary terms
Concepts from this question explained
These glossary pages explain the core terms tested in this MS-900 question in full detail.
Describe Microsoft 365 pricing, licensing, and support — This question tests Describe Microsoft 365 pricing, licensing, and support — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Downgrade those users to Microsoft 365 E3 licenses — Option B is correct because Microsoft 365 E3 provides the same core functionality as E5—Exchange Online, SharePoint, Teams, and desktop Office apps—but lacks E5's advanced security and analytics features (e.g., Microsoft Defender for Office 365 Plan 2, Microsoft Purview, Power BI Pro). Downgrading users who need only email and basic Office apps to E3 reduces per-user licensing cost while preserving all required functionality, making it the most cost-effective strategy.
What should I do if I get this MS-900 question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Question Discussion
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