MS-900 Describe Microsoft 365 pricing and support Practice Question
This MS-900 practice question tests your understanding of describe microsoft 365 pricing 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 with 5,000 users is licensed with Microsoft 365 E3. They need to comply with a regulation that requires retaining all Exchange Online mailbox content for 7 years and providing advanced eDiscovery capabilities (including predictive coding) to search through that data. Which Microsoft 365 add-on license should they purchase to meet these requirements most cost-effectively?
Correct. This add-on provides advanced eDiscovery (including predictive coding) and retention capabilities needed for litigation and compliance.
B
Exchange Online Archiving for Exchange Online Plan 2
Why wrong: Incorrect. Archiving only expands mailbox storage; it does not provide advanced eDiscovery or retention policy customization.
C
Microsoft 365 E5 (full suite upgrade)
Why wrong: Incorrect. Upgrading all users to E5 includes many unnecessary features (e.g., advanced analytics) and is more expensive than the E5 Compliance add-on.
D
Microsoft Purview Audit (Standard) add-on
Why wrong: Incorrect. Audit logs are for tracking user activities, not for retaining mailbox content or providing advanced eDiscovery search.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Microsoft 365 E5 Compliance add-on
Microsoft 365 E5 Compliance add-on provides the required 7-year retention via retention policies and advanced eDiscovery (including predictive coding) without upgrading the entire E3 suite. This add-on is the most cost-effective way to meet regulatory retention and advanced search needs while keeping the existing E3 licensing.
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.
✓
Microsoft 365 E5 Compliance add-on
Why this is correct
Correct. This add-on provides advanced eDiscovery (including predictive coding) and retention capabilities needed for litigation and compliance.
Related concept
Read the scenario before looking for a memorised answer.
✗
Exchange Online Archiving for Exchange Online Plan 2
Why it's wrong here
Incorrect. Archiving only expands mailbox storage; it does not provide advanced eDiscovery or retention policy customization.
✗
Microsoft 365 E5 (full suite upgrade)
Why it's wrong here
Incorrect. Upgrading all users to E5 includes many unnecessary features (e.g., advanced analytics) and is more expensive than the E5 Compliance add-on.
✗
Microsoft Purview Audit (Standard) add-on
Why it's wrong here
Incorrect. Audit logs are for tracking user activities, not for retaining mailbox content or providing advanced eDiscovery search.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often confuse the basic archiving or audit capabilities (Options B and D) with the advanced eDiscovery and retention features that require the E5 Compliance add-on, or they mistakenly think a full E5 suite upgrade is necessary when a targeted add-on is more cost-effective.
Detailed technical explanation
How to think about this question
The E5 Compliance add-on includes Microsoft Purview eDiscovery (Premium) with predictive coding models that use machine learning to rank and prioritize relevant content, and retention policies that can enforce 7-year holds via Preservation Lock. Under the hood, these features leverage Azure Cognitive Services and the unified audit log, ensuring compliance with regulations like SEC 17a-4 or GDPR. In a real-world scenario, an organization with 5,000 users can apply a default retention label to all Exchange mailboxes, and eDiscovery Premium can process terabytes of data with near-real-time indexing.
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 and support — This question tests Describe Microsoft 365 pricing and support — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Microsoft 365 E5 Compliance add-on — Microsoft 365 E5 Compliance add-on provides the required 7-year retention via retention policies and advanced eDiscovery (including predictive coding) without upgrading the entire E3 suite. This add-on is the most cost-effective way to meet regulatory retention and advanced search needs while keeping the existing E3 licensing.
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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