SC-100 Practice Question: Design solutions that align with security best practices and priorities
This SC-100 practice question tests your understanding of design solutions that align with security best practices and priorities. 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.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Blocks sign-ins from users with high user risk
The policy JSON specifies `"userRiskLevels": ["high"]` under the conditions block, which means it targets only users whose user risk level is assessed as high by Microsoft Entra ID Protection. The grant control is set to `"builtInControls": ["block"]`, so the policy blocks sign-ins for those high-risk users. Option B is correct because the policy explicitly blocks sign-ins from users with high user risk, not sign-in risk or all users.
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.
✗
Blocks sign-ins from locations with high sign-in risk
Why it's wrong here
Sign-in risk is not configured.
✓
Blocks sign-ins from users with high user risk
Why this is correct
The policy targets high user risk and blocks.
Related concept
Read the scenario before looking for a memorised answer.
✗
Blocks all sign-ins from any user
Why it's wrong here
It only blocks users with high user risk, not all users.
✗
Requires multifactor authentication for high-risk users
Common exam trap: answer the scenario, not the keyword
Microsoft often tests the distinction between `userRiskLevels` and `signInRiskLevels` in Conditional Access policies, and candidates frequently confuse the two, thinking a high user risk policy blocks sign-in risk events rather than user account risk.
Detailed technical explanation
How to think about this question
User risk in Microsoft Entra ID Protection is calculated based on signals such as leaked credentials, anomalous sign-in patterns, or impossible travel, and is stored as a property of the user object in the directory. The Conditional Access policy evaluates this risk at sign-in time by querying the risk level from the Identity Protection service; if the user risk is high, the block control is enforced before any authentication token is issued. In a real-world scenario, an organization might combine this with a separate policy that requires MFA for medium-risk users, creating a layered risk-based access strategy.
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 SC-100 question in full detail.
Design solutions that align with security best practices and priorities — This question tests Design solutions that align with security best practices and priorities — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Blocks sign-ins from users with high user risk — The policy JSON specifies `"userRiskLevels": ["high"]` under the conditions block, which means it targets only users whose user risk level is assessed as high by Microsoft Entra ID Protection. The grant control is set to `"builtInControls": ["block"]`, so the policy blocks sign-ins for those high-risk users. Option B is correct because the policy explicitly blocks sign-ins from users with high user risk, not sign-in risk or all users.
What should I do if I get this SC-100 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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