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 company with 500 users is currently licensed with Microsoft 365 E3. The compliance team needs to add advanced eDiscovery capabilities (including predictive coding and legal hold) and the ability to retain data for up to 7 years. What is the most cost-effective licensing addition?
This add-on includes advanced eDiscovery and retention features, specifically designed to meet compliance needs without the full E5 suite.
B
Microsoft 365 E5 Security add-on
Why wrong: The Security add-on focuses on advanced threat protection and endpoint security, not eDiscovery or retention.
C
Microsoft 365 E5
Why wrong: While E5 includes both Compliance and Security features, it is more expensive than the Compliance add-on alone and includes unnecessary security features.
D
Office 365 E5
Why wrong: Office 365 E5 includes some compliance capabilities but does not include the full Microsoft 365 E5 Compliance add-on features like advanced eDiscovery.
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
Option A is correct because the Microsoft 365 E5 Compliance add-on provides advanced eDiscovery capabilities (including predictive coding and legal hold) and the ability to retain data for up to 7 years via retention policies. This add-on is the most cost-effective way to add these specific compliance features to an existing Microsoft 365 E3 subscription, as it avoids the higher cost of upgrading the entire suite to 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.
✓
Microsoft 365 E5 Compliance add-on
Why this is correct
This add-on includes advanced eDiscovery and retention features, specifically designed to meet compliance needs without the full E5 suite.
Related concept
Read the scenario before looking for a memorised answer.
✗
Microsoft 365 E5 Security add-on
Why it's wrong here
The Security add-on focuses on advanced threat protection and endpoint security, not eDiscovery or retention.
✗
Microsoft 365 E5
Why it's wrong here
While E5 includes both Compliance and Security features, it is more expensive than the Compliance add-on alone and includes unnecessary security features.
✗
Office 365 E5
Why it's wrong here
Office 365 E5 includes some compliance capabilities but does not include the full Microsoft 365 E5 Compliance add-on features like advanced eDiscovery.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often confuse the E5 Compliance add-on with the full E5 suite, assuming they need to upgrade the entire license when a targeted add-on is sufficient and more cost-effective.
Detailed technical explanation
How to think about this question
Advanced eDiscovery in Microsoft 365 leverages Azure Cognitive Search and machine learning models for predictive coding, which automatically identifies relevant documents based on user-tagged examples. The 7-year retention capability is enforced through Microsoft Purview retention policies that use Preservation Lock to prevent tampering, ensuring compliance with regulatory requirements like SEC Rule 17a-4. In a real-world scenario, a legal team could use predictive coding to reduce review time by up to 70% while maintaining defensibility in court.
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 — Option A is correct because the Microsoft 365 E5 Compliance add-on provides advanced eDiscovery capabilities (including predictive coding and legal hold) and the ability to retain data for up to 7 years via retention policies. This add-on is the most cost-effective way to add these specific compliance features to an existing Microsoft 365 E3 subscription, as it avoids the higher cost of upgrading the entire suite to 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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Question Discussion
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