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.
Adventure Works is a global manufacturing company with 10,000 employees using Microsoft 365 E3. They have a hybrid identity setup with Microsoft Entra Connect syncing on-premises Active Directory to Microsoft Entra ID. The company wants to implement a zero-trust security model and has identified that many users still use weak passwords and do not use MFA. They want to enforce MFA for all users, but they also want to allow users to register for MFA on their own using the Microsoft Authenticator app. The security team is concerned about phishing attacks and wants to use a more secure MFA method. Additionally, they want to ensure that any new user created in on-premises AD is automatically enabled for MFA within 24 hours. What should you recommend?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Create a Conditional Access policy that requires MFA for all users and configure authentication methods policy to allow only Microsoft Authenticator.
Option D is correct. A Conditional Access policy with 'Require multifactor authentication' for all users is the best approach. Combined with a 'Security Defaults' or MFA registration policy, users can self-register. Using 'Microsoft Authenticator' as the authentication method can be enforced via authentication methods policy. For new users, the Conditional Access policy will apply automatically when they sign in. Option A (per-user MFA) is outdated and not scalable. Option B (identity protection) is for risk-based policies, not blanket MFA. Option C (SSPR) does not enforce MFA.
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.
✗
Configure Identity Protection to enforce MFA for risky sign-ins.
Why it's wrong here
This only applies to risky sign-ins, not all users.
✗
Enable per-user MFA in the Microsoft 365 admin center for all users.
Why it's wrong here
Per-user MFA is deprecated and does not provide granular control or self-service registration.
✗
Enable self-service password reset (SSPR) and require MFA for password changes.
Create a Conditional Access policy that requires MFA for all users and configure authentication methods policy to allow only Microsoft Authenticator.
Why this is correct
This enforces MFA for all sign-ins and uses a secure method. New users are automatically covered.
Related concept
Read the scenario before looking for a memorised answer.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Many certification questions include familiar terms but test a specific constraint. Read the exact wording before choosing an answer that is generally true but wrong for this case.
Detailed technical explanation
How to think about this question
This question should be treated as a scenario, not a definition check. Identify the problem, the constraint and the best action. Then compare each option against those facts.
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.
Use explanations to understand the rule behind the answer.
TExam Day Tips
→Underline the problem statement mentally.
→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.
Identify which MS-900 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
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: Create a Conditional Access policy that requires MFA for all users and configure authentication methods policy to allow only Microsoft Authenticator. — Option D is correct. A Conditional Access policy with 'Require multifactor authentication' for all users is the best approach. Combined with a 'Security Defaults' or MFA registration policy, users can self-register. Using 'Microsoft Authenticator' as the authentication method can be enforced via authentication methods policy. For new users, the Conditional Access policy will apply automatically when they sign in. Option A (per-user MFA) is outdated and not scalable. Option B (identity protection) is for risk-based policies, not blanket MFA. Option C (SSPR) does not enforce MFA.
What should I do if I get this MS-900 question wrong?
Identify which MS-900 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
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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