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.
Fabrikam Inc. has 5,000 users and is currently using Microsoft 365 E3. They want to enable Microsoft Copilot for Microsoft 365 for all users. The finance team is concerned about the additional cost and wants to explore if any existing licenses include Copilot or if they can use a lower-cost option. The IT team has determined that Copilot requires a qualifying license such as E3 or E5. Fabrikam also needs to maintain their current level of service for Exchange, SharePoint, Teams, and OneDrive. They do not need any additional security or compliance features beyond what E3 provides. Which licensing strategy should they implement to enable Copilot for all users while minimizing total cost?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Keep Microsoft 365 E3 and purchase Copilot add-on licenses for all users
Option C is correct because Microsoft 365 E3 is a qualifying base license for Copilot for Microsoft 365, and the Copilot add-on can be purchased per user without changing the existing plan. This allows Fabrikam to retain their current E3 service levels for Exchange, SharePoint, Teams, and OneDrive while adding Copilot functionality at the lowest incremental cost, as they do not need the extra security or compliance features of E5.
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.
✗
Switch to Microsoft 365 Business Premium and add Copilot
Why it's wrong here
Business Premium is limited to 300 users, not feasible for 5,000.
✗
Upgrade all users to Microsoft 365 E5
Why it's wrong here
E5 is more expensive than E3 plus Copilot, and adds unnecessary features.
✓
Keep Microsoft 365 E3 and purchase Copilot add-on licenses for all users
Why this is correct
E3 qualifies for Copilot add-on, meeting requirements at minimal additional cost.
Related concept
Read the scenario before looking for a memorised answer.
✗
Purchase standalone Copilot licenses without changing the base plan
Why it's wrong here
Copilot cannot be purchased without a qualifying base license like E3.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates may assume Copilot requires an E5 license or that a Business Premium license can support 5,000 users, but Microsoft explicitly limits Business Premium to 300 users and requires a qualifying base license for Copilot, making the add-on on E3 the only cost-effective and technically valid option.
Detailed technical explanation
How to think about this question
Copilot for Microsoft 365 is an add-on that requires a qualifying base license (e.g., Microsoft 365 E3, E5, Business Standard, or Business Premium) and is licensed per user. The add-on integrates with Microsoft Graph to access user data across Exchange, SharePoint, Teams, and OneDrive, but it does not change the underlying service level or feature set of the base plan. In real-world scenarios, organizations often mistakenly assume they must upgrade their entire tenant to E5 to enable Copilot, but the add-on model allows them to layer AI capabilities on existing E3 subscriptions without incurring the cost of E5's additional security and compliance suites.
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: Keep Microsoft 365 E3 and purchase Copilot add-on licenses for all users — Option C is correct because Microsoft 365 E3 is a qualifying base license for Copilot for Microsoft 365, and the Copilot add-on can be purchased per user without changing the existing plan. This allows Fabrikam to retain their current E3 service levels for Exchange, SharePoint, Teams, and OneDrive while adding Copilot functionality at the lowest incremental cost, as they do not need the extra security or compliance features of E5.
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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