The correct answer is to create a conditional access policy targeting the Azure portal app requiring MFA. This is the simplest and most effective method because a Conditional Access policy allows you to precisely scope the MFA requirement to the specific cloud application—in this case, the Azure portal—while leaving other applications unaffected. On the Microsoft Cybersecurity Architect exam, this question tests your ability to differentiate between granular policy controls and broader or legacy solutions; a common trap is confusing the MFA registration policy (which only ensures users have registered methods, not that they use them) with an enforcement policy, or defaulting to per-user MFA, which is inflexible and outdated. Remember that Conditional Access is the modern, policy-driven approach for Microsoft Entra ID, giving you fine-grained control over sign-in conditions. Memory tip: think “scope and enforce”—Conditional Access lets you scope to one app and enforce MFA, while security defaults or per-user settings are either too broad or too rigid.
SC-100 Practice Question: Design security operations, identity, and compliance capabilities
This SC-100 practice question tests your understanding of design security operations, identity, and compliance capabilities. 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.
Your organization uses Microsoft Entra ID. You need to enforce multi-factor authentication (MFA) for all users accessing the Azure portal. What is the simplest way to configure this?
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 targeting the Azure portal app requiring MFA.
Option C is correct because a conditional access policy can be targeted to the Azure portal app and require MFA. Option A is wrong because per-user MFA is legacy and less flexible. Option B is wrong because MFA registration policy ensures registration but does not enforce MFA. Option D is wrong because security defaults apply to all apps, not just Azure portal, and may be too broad.
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.
Security defaults apply to all apps and may not be suitable for all scenarios.
✓
Create a conditional access policy targeting the Azure portal app requiring MFA.
Why this is correct
Conditional access allows granular enforcement.
Related concept
Read the scenario before looking for a memorised answer.
✗
Configure Microsoft Entra ID MFA registration policy.
Why it's wrong here
Registration policy ensures registration, not enforcement.
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.
Trap categories for this question
Scenario analysis trap
Security defaults apply to all apps and may not be suitable for all scenarios.
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 SC-100 question in full detail.
Identify which SC-100 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.
Design security operations, identity, and compliance capabilities — This question tests Design security operations, identity, and compliance capabilities — 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 targeting the Azure portal app requiring MFA. — Option C is correct because a conditional access policy can be targeted to the Azure portal app and require MFA. Option A is wrong because per-user MFA is legacy and less flexible. Option B is wrong because MFA registration policy ensures registration but does not enforce MFA. Option D is wrong because security defaults apply to all apps, not just Azure portal, and may be too broad.
What should I do if I get this SC-100 question wrong?
Identify which SC-100 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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