The answer is to enable security defaults in the Microsoft Entra admin center. This is correct because security defaults provide a pre-configured, Microsoft-recommended baseline that instantly enforces multi-factor authentication for all users, including administrators, with a single toggle—no custom conditional access policies or complex licensing configurations are needed. For a small business with 50 users on Microsoft 365 Business Premium and no existing conditional access policies, this is the fastest way to enable MFA for all users while meeting the goal of minimal configuration. On the MS-102 exam, this scenario tests your ability to distinguish between security defaults and conditional access policies; a common trap is overcomplicating the solution by creating custom policies when the simplest, built-in option suffices. Remember the mnemonic "One toggle, all secure"—security defaults are the quickest path to universal MFA enforcement.
MS-102 Deploy and manage a Microsoft 365 tenant Practice Question
This MS-102 practice question tests your understanding of deploy and manage a microsoft 365 tenant. 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 a Microsoft 365 administrator for a small business with 50 users. The company uses Microsoft 365 Business Premium. You need to ensure that all users have multi-factor authentication (MFA) enabled. The company does not have any custom conditional access policies. You want to implement MFA as quickly as possible with minimal configuration. What should you do?
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 the Microsoft Entra admin center.
Security defaults provide a pre-configured set of security policies, including requiring MFA for all users, that can be enabled with a single toggle in the Microsoft Entra admin center. This is the fastest and simplest method for a small business with no existing conditional access policies, as it requires minimal configuration and immediately enforces MFA for every user.
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.
✓
Enable security defaults in the Microsoft Entra admin center.
Why this is correct
Correct: Security defaults enable MFA for all users with minimal effort.
Related concept
Read the scenario before looking for a memorised answer.
✗
Configure MFA registration campaign for all users.
Why it's wrong here
Incorrect: This encourages registration but does not enforce MFA.
✗
Enable per-user MFA for each user.
Why it's wrong here
Incorrect: This is deprecated and not recommended.
✗
Create a conditional access policy that requires MFA for all users.
Why it's wrong here
Incorrect: This is more complex and time-consuming than security defaults.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often confuse the MFA registration campaign (which only prompts registration) with actual MFA enforcement, or they overcomplicate the solution by choosing per-user MFA or a custom conditional access policy when security defaults are the fastest and simplest answer for a tenant with no existing policies.
Detailed technical explanation
How to think about this question
Security defaults automatically enforce MFA for all users, block legacy authentication protocols (e.g., POP3, IMAP, SMTP), and require privileged roles to use MFA—all based on Microsoft's baseline protection policies. Under the hood, security defaults create a set of conditional access policies that are hidden from the user interface but are applied at the tenant level, overriding any per-user MFA settings. In a real-world scenario, a small business with 50 users and no custom policies can enable security defaults in under five minutes, whereas configuring per-user MFA or a custom conditional access policy would take significantly longer and risk misconfiguration.
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-102 question in full detail.
Deploy and manage a Microsoft 365 tenant — This question tests Deploy and manage a Microsoft 365 tenant — 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 the Microsoft Entra admin center. — Security defaults provide a pre-configured set of security policies, including requiring MFA for all users, that can be enabled with a single toggle in the Microsoft Entra admin center. This is the fastest and simplest method for a small business with no existing conditional access policies, as it requires minimal configuration and immediately enforces MFA for every user.
What should I do if I get this MS-102 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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