- A
Microsoft 365 E5 Compliance add-on
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.
Question 777 of 985
Microsoft 365 E5 Compliance Add-On — Adding Advanced eDiscovery and 7-Year Retention to E3
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?
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 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.
What to study next
Got this wrong? Here's your next step.
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FAQ
Questions learners often ask
What does this MS-900 question test?
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.
About these practice questions
Courseiva creates original exam-style practice questions with explanations and wrong-answer analysis. It does not publish real exam questions, exam dumps, or protected exam content. Learn why practice questions differ from exam dumps →
Same concept, more angles
2 more ways this is tested on MS-900
These questions test the same concept from different angles. Work through them to make sure you can recognise it however the exam phrases it.
Variation 1. A company has 500 users with Microsoft 365 E3 licenses. They need to add Communication Compliance and Insider Risk Management for all users. They want to minimize additional costs while retaining their existing E3 subscriptions. What is the most cost-effective licensing approach?
medium- A.Upgrade all users to Microsoft 365 E5
- ✓ B.Purchase the Microsoft 365 E5 Compliance add-on for all users
- C.Purchase the Microsoft 365 E5 eDiscovery and Audit add-on
- D.Replace E3 with Microsoft 365 Business Premium
Why B: Microsoft 365 E5 Compliance is an add-on license for E3 that provides Communication Compliance, Insider Risk Management, and other advanced compliance features. Upgrading all users to E5 is more expensive if the advanced security features of E5 are not needed. The E5 eDiscovery and Audit add-on does not include Communication Compliance or Insider Risk Management. Business Premium plans are not compatible with enterprise E3 subscriptions and lack these features.
Variation 2. A company currently has Microsoft 365 E3 licenses for all users. They need to retain all Exchange Online mailbox data for 10 years and place legal holds for litigation. Which add-on license provides these retention and eDiscovery capabilities?
easy- ✓ A.Microsoft 365 E5 Compliance
- B.Microsoft 365 E5 Security
- C.Microsoft 365 E5
- D.Office 365 E5
Why A: Microsoft 365 E5 Compliance is the correct add-on because it includes advanced eDiscovery (e.g., eDiscovery Premium) and retention capabilities such as Preservation Lock and 10-year retention policies via Microsoft Purview. The base E3 license only provides basic retention and eDiscovery, lacking the extended 10-year retention and litigation hold features required for this scenario.
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Last reviewed: Jun 11, 2026
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