MS-900 Describe Microsoft 365 apps and services Practice Question
This MS-900 practice question tests your understanding of describe microsoft 365 apps and services. 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 marketing department uses Microsoft 365 Copilot to generate content. The compliance officer is concerned about data leakage when users interact with Copilot. Which Microsoft Purview feature should the admin implement to prevent sensitive data from being used in Copilot prompts?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Microsoft Purview Data Loss Prevention (DLP) for Copilot
Microsoft Purview Data Loss Prevention (DLP) for Copilot is the correct feature because it specifically inspects and blocks sensitive data (e.g., credit card numbers, PII) from being included in Copilot prompts or generated content. DLP policies can be applied to Copilot interactions to prevent data leakage by evaluating the content in real time against sensitive information types and enforcing actions like blocking or warning the user.
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 Purview Data Loss Prevention (DLP) for Copilot
Why this is correct
DLP policies can scan and block sensitive data in Copilot interactions.
Related concept
Read the scenario before looking for a memorised answer.
✗
Microsoft Purview Audit (Standard)
Why it's wrong here
Audit logs record events but don't prevent data leakage.
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Microsoft Purview Information Rights Management (IRM)
Why it's wrong here
IRM protects documents, not Copilot prompts.
✗
Microsoft Purview Sensitivity labels
Why it's wrong here
Sensitivity labels classify data but don't block Copilot prompts.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often confuse sensitivity labels (which classify and protect static content) with DLP (which actively monitors and blocks data in motion), leading them to choose Option D instead of the correct preventive control.
Detailed technical explanation
How to think about this question
Under the hood, Microsoft Purview DLP for Copilot integrates with the Microsoft 365 data classification service and uses sensitive information types (e.g., predefined or custom regex patterns) to scan prompt text and responses. When a DLP policy match occurs, the action is enforced at the Microsoft 365 service layer before the prompt reaches the AI model, effectively blocking the data from being processed. In a real-world scenario, a marketing user might accidentally paste a customer's Social Security number into a Copilot prompt; DLP would block that interaction and log the incident in the Microsoft Purview compliance portal.
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 cloud solutions architect for a retail company is evaluating services for a new workload. The correct answer here reflects best practice for the specific scenario described — not a general cloud recommendation. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Cloud exam questions reward reading the constraint carefully: the same technology can be right or wrong depending on the use case.
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 apps and services — This question tests Describe Microsoft 365 apps and services — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Microsoft Purview Data Loss Prevention (DLP) for Copilot — Microsoft Purview Data Loss Prevention (DLP) for Copilot is the correct feature because it specifically inspects and blocks sensitive data (e.g., credit card numbers, PII) from being included in Copilot prompts or generated content. DLP policies can be applied to Copilot interactions to prevent data leakage by evaluating the content in real time against sensitive information types and enforcing actions like blocking or warning the user.
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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