The answer is to enable security defaults in Microsoft Entra ID. This is the correct choice because security defaults provide a pre-configured, risk-based MFA policy that automatically prompts users for verification when sign-ins occur from unfamiliar locations or devices, and it is included at no extra cost with Microsoft 365 Business Premium. On the SC-900 exam, this question tests your understanding of licensing boundaries: conditional access policies require Azure AD Premium P1 or P2 licenses, which are not bundled with Business Premium, making security defaults the only free, built-in option for risk-based MFA enforcement. A common trap is assuming the Microsoft Authenticator app alone enforces MFA, but it only provides the verification method—not the policy that triggers the prompt. Remember the memory tip: "Security defaults are the default security—no premium, no problem."
SC-900 Practice Question: Describe the capabilities of Microsoft security solutions
This SC-900 practice question tests your understanding of describe the capabilities of microsoft security solutions. 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.
You are the security administrator for a small business that uses Microsoft 365 Business Premium. The company wants to enable multi-factor authentication (MFA) for all users. You need to ensure that users are prompted for MFA when they sign in from unfamiliar locations or devices. The solution should be easy to deploy without additional licensing. Which of the following should you configure?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Enable security defaults in Microsoft Entra ID
Option B is correct because security defaults are a pre-configured set of security policies that include MFA based on risk. Option A is incorrect because conditional access policies require Azure AD Premium licenses, which are not included in Business Premium. Option C is incorrect because risk-based policies require Azure AD Premium P2. Option D is incorrect because the Microsoft Authenticator app alone 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.
✗
Create a conditional access policy in Microsoft Entra ID that requires MFA for all cloud apps
Why it's wrong here
Conditional access requires Azure AD Premium licenses; Business Premium includes only basic features.
✓
Enable security defaults in Microsoft Entra ID
Why this is correct
Security defaults provide a baseline of security including MFA for all users, and are included in all licensing tiers.
Related concept
Read the scenario before looking for a memorised answer.
✗
Deploy the Microsoft Authenticator app and instruct users to enable it
Why it's wrong here
This does not enforce MFA; it only provides a method.
✗
Configure identity protection to enable risk-based MFA
Why it's wrong here
Identity Protection requires Azure AD Premium P2 licenses.
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 SC-900 question in full detail.
Identify which SC-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 the capabilities of Microsoft security solutions — This question tests Describe the capabilities of Microsoft security solutions — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Enable security defaults in Microsoft Entra ID — Option B is correct because security defaults are a pre-configured set of security policies that include MFA based on risk. Option A is incorrect because conditional access policies require Azure AD Premium licenses, which are not included in Business Premium. Option C is incorrect because risk-based policies require Azure AD Premium P2. Option D is incorrect because the Microsoft Authenticator app alone does not enforce MFA.
What should I do if I get this SC-900 question wrong?
Identify which SC-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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