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. Match the stated requirement to the specific cloud service, access model, or configuration option — many options are valid in isolation but not for this scenario. 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 administrator needs to apply encryption and usage restrictions to confidential documents. Which Microsoft 365 capability is the best fit?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue: "best"
Why it matters: Signals that multiple options may be partially correct. Choose the option that most directly solves the exact problem described, not the one that sounds most complete.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Sensitivity labels
Sensitivity labels from Microsoft Purview Information Protection are the correct choice because they allow the compliance administrator to apply both encryption and usage restrictions (such as 'Do Not Forward' or custom permissions) directly to confidential documents. This capability integrates with Microsoft 365 apps to enforce protection persistently, even when the document is shared outside the organization.
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.
✗
OneDrive sync client
Why it's wrong here
The sync client synchronizes files and does not implement this control by itself.
✓
Sensitivity labels
Why this is correct
Sensitivity labels classify and protect content, including encryption and access restrictions.
Clue confirmation
The clue word "best" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
✗
Microsoft Bookings
Why it's wrong here
Bookings schedules appointments and is unrelated to this security requirement.
✗
Microsoft Teams live events
Why it's wrong here
Teams events are for communication, not this compliance/security requirement.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often confuse the OneDrive sync client's ability to sync encrypted files with the ability to apply encryption itself, or they mistakenly think Microsoft Teams live events can restrict document usage because it is a 'live' feature with attendee controls.
Detailed technical explanation
How to think about this question
Sensitivity labels use Azure Rights Management (Azure RMS) to apply encryption via the AD RMS cryptographic stack, supporting AES-256 for content protection. When a label is applied, the document is encrypted and bound to a usage policy that can enforce restrictions like 'View Only' or 'Edit' permissions, which are enforced by the Microsoft 365 Rights Management Service even when the file is saved to a non-Microsoft location. A real-world scenario is a legal team labeling a merger agreement as 'Confidential - Attorney-Client Privilege' to prevent forwarding and editing while allowing read-only access to external counsel.
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 — Sensitivity labels from Microsoft Purview Information Protection are the correct choice because they allow the compliance administrator to apply both encryption and usage restrictions (such as 'Do Not Forward' or custom permissions) directly to confidential documents. This capability integrates with Microsoft 365 apps to enforce protection persistently, even when the document is shared outside the organization.
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.
Are there clue words in this question I should notice?
Yes — watch for: "best". Signals that multiple options may be partially correct. Choose the option that most directly solves the exact problem described, not the one that sounds most complete.
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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