SC-900 Describe the capabilities of Microsoft Entra Practice Question
A user reports that they are repeatedly prompted for multifactor authentication when accessing Microsoft 365 apps from the same trusted device. What should you do to reduce the number of prompts?
⚠ Common exam trap
Test-takers frequently confuse 'changing the MFA method' (Option B) with reducing prompt frequency, not realizing that the method type has no impact on how often the prompt appears—only the session persistence settings control that.
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Configure 'Remember MFA' settings in Conditional Access
The 'Remember MFA' setting in Conditional Access allows administrators to configure the session lifetime for MFA prompts on trusted devices. By extending the 'MFA reauthentication frequency' or enabling 'Remember Multifactor Authentication' for a longer period (e.g., 30 days), users will not be repeatedly challenged on the same device, reducing friction while maintaining security.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Disable MFA for the user
Why it's wrong here
Disabling Multi-Factor Authentication (MFA) for a user would indeed stop the prompts, but it critically weakens the account's security posture. This action removes a vital layer of protection against credential compromise, making the user highly vulnerable to phishing and password spray attacks, which is contrary to modern security best practices and compliance requirements.
- ✗
Change the user's MFA method to text message
Why it's wrong here
Changing the user's MFA method, such as from an authenticator app to a text message, only alters the delivery mechanism for the second factor. It does not modify the underlying Conditional Access policy or sign-in frequency settings that dictate *when* MFA is required. Therefore, the user would still be prompted with the same frequency, just through a different channel.
- ✓
Configure 'Remember MFA' settings in Conditional Access
Why this is correct
Configuring 'Remember MFA' settings, typically through the 'Sign-in frequency' control within a Conditional Access policy, allows administrators to specify how often users are prompted for MFA. By setting a longer duration, such as 90 days, users on trusted devices can remain authenticated without repeated MFA challenges for that period. This balances security with user experience by reducing prompt fatigue while maintaining strong authentication.
- ✗
Reset the user's MFA registration
Why it's wrong here
Resetting a user's MFA registration in Azure AD would force them to re-register all their authentication methods from scratch the next time they sign in. This action would immediately trigger a series of prompts for re-registration, followed by subsequent MFA challenges, thereby increasing the immediate number of prompts rather than reducing the frequency of existing ones. It exacerbates the problem of prompt fatigue initially.
Go deeper
Related to this question
Learn chapter
Core Security Concepts
Key term
Conditional access
Conditional access is a security framework that evaluates signals like user location, device health, and risk level to grant or block access to resources in real time.
Key term
MFA
Multi-Factor Authentication (MFA) is a security method that requires a user to verify their identity using two or more different types of evidence, such as a password plus a code from a phone, before they can access an account or system.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This SC-900 practice question is part of Courseiva's free Microsoft certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the SC-900 exam.