MS-900 Practice Question: Describe security, compliance, privacy, and trust in Microsoft 365
This MS-900 practice question tests your understanding of describe security, compliance, privacy, and trust in microsoft 365. This is a configuration task: choose the command set that satisfies every stated requirement. Small differences — like 'secret' vs 'password' or 'transport input ssh' vs 'all' — change whether the answer is correct. 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 compliance officer needs to automatically detect documents stored in SharePoint Online that contain sensitive data types (e.g., credit card numbers) and apply a sensitivity label that restricts access to only certain users. The classification should occur without user intervention and the label must be applied to the document. Which Microsoft Purview solution should be configured?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Sensitivity labels with auto-labeling
Sensitivity labels with auto-labeling are the correct solution because they can automatically classify documents based on sensitive data types (such as credit card numbers) and apply a sensitivity label that enforces protection actions like restricting access to specific users. This occurs without user intervention, meeting the requirement for automatic classification and labeling in SharePoint Online.
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.
✗
Data Loss Prevention (DLP)
Why it's wrong here
DLP policies can detect sensitive data and enforce rules like blocking sharing, but they do not apply sensitivity labels.
✓
Sensitivity labels with auto-labeling
Why this is correct
Auto-labeling policies can scan content for sensitive info types and automatically apply a sensitivity label that includes encryption and permissions.
Related concept
Read the scenario before looking for a memorised answer.
✗
Retention labels
Why it's wrong here
Retention labels are used for retention and deletion of content, not for classifying and protecting based on sensitive data.
✗
Information barriers
Why it's wrong here
Information barriers restrict communication between groups but do not classify or protect documents.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often confuse DLP policies with auto-labeling, but DLP only detects and blocks sharing actions, whereas auto-labeling applies the sensitivity label and its associated protection directly to the document.
Detailed technical explanation
How to think about this question
Auto-labeling for sensitivity labels uses trainable classifiers or exact data match (EDM) to scan content in SharePoint Online, OneDrive, and Exchange; when a match is found, the label is applied automatically, and the label's encryption settings (e.g., 'Encrypt with user-defined permissions') can restrict access to only authorized users. This process leverages the Microsoft 365 unified labeling client and runs as a background service, ensuring no user interaction is required. A real-world scenario is a healthcare organization automatically labeling patient records containing Social Security numbers with a 'Highly Confidential' label that encrypts the document and limits access to the compliance team.
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 company's IT admin needs to give a contractor read-only access to production logs without sharing account credentials. Using role-based access control (RBAC) and temporary scoped permissions — not a permanent shared password — is the correct pattern. Questions like this test whether you can apply least-privilege access across cloud identity services.
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 security, compliance, privacy, and trust in Microsoft 365 — This question tests Describe security, compliance, privacy, and trust in Microsoft 365 — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Sensitivity labels with auto-labeling — Sensitivity labels with auto-labeling are the correct solution because they can automatically classify documents based on sensitive data types (such as credit card numbers) and apply a sensitivity label that enforces protection actions like restricting access to specific users. This occurs without user intervention, meeting the requirement for automatic classification and labeling in SharePoint Online.
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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