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 global company needs to ensure that only employees in the 'HR' security group can access a specific set of HR documents stored in SharePoint. If a user outside the group attempts to view or copy the content, it must be blocked. The protection must persist even if someone downloads the files and shares them externally, or if the files are saved to a personal device. Which Microsoft Purview solution should be used?
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 encryption and permission settings
Sensitivity labels with encryption and permission settings are the correct solution because they allow you to apply persistent protection that travels with the file, regardless of where it is stored or shared. By configuring a sensitivity label to restrict access to only members of the 'HR' security group and enabling encryption, the protection remains intact even if the file is downloaded, saved to a personal device, or shared externally. This meets the requirement for persistent access control that blocks unauthorized viewing or copying.
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) policy
Why it's wrong here
DLP policies can prevent sharing of sensitive data but do not encrypt the file; once downloaded, the file loses protection.
✓
Sensitivity labels with encryption and permission settings
Why this is correct
Encryption via sensitivity labels protects the file regardless of where it is stored, and permissions ensure only the 'HR' group can access it.
Related concept
Read the scenario before looking for a memorised answer.
✗
Microsoft Entra ID Conditional Access
Why it's wrong here
Conditional Access controls access to cloud apps based on user, device, or location, but does not protect the file after download.
✗
Microsoft Defender for Cloud Apps session policy
Why it's wrong here
Session policies monitor and control activity in the cloud, but do not embed persistent protection into files.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often confuse DLP policies (which only monitor and block sharing at the transport layer) with sensitivity labels (which provide persistent encryption and access control that stays with the file), leading them to choose DLP when the question explicitly requires protection that persists after download or external sharing.
Detailed technical explanation
How to think about this question
Sensitivity labels in Microsoft Purview Information Protection use Azure Rights Management (Azure RMS) to apply encryption and usage rights (e.g., view, edit, copy, print) that are bound to the file itself via a cryptographic envelope. This encryption persists even when the file is copied to a USB drive or emailed, because the decryption key is tied to the user's identity and the label's permissions, not to the location or transport method. A real-world scenario is a healthcare organization that labels patient records with 'Confidential - HR Only' and encrypts them so that only HR group members can open the file, even if it is accidentally shared with a contractor.
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 encryption and permission settings — Sensitivity labels with encryption and permission settings are the correct solution because they allow you to apply persistent protection that travels with the file, regardless of where it is stored or shared. By configuring a sensitivity label to restrict access to only members of the 'HR' security group and enabling encryption, the protection remains intact even if the file is downloaded, saved to a personal device, or shared externally. This meets the requirement for persistent access control that blocks unauthorized viewing or copying.
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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