SC-900 Conditional Access Practice Question
A company uses Microsoft Entra ID. They want to require users to perform multifactor authentication (MFA) every 30 days on devices that are marked as compliant, but require MFA for every sign-in attempt on non-compliant devices. Which Conditional Access control should they configure to meet this requirement?
⚠ Common exam trap
Test-takers frequently confuse 'Grant controls' (which enforce MFA) with 'Session controls' (which manage sign-in frequency), leading them to pick 'Require MFA' instead of 'Sign-in frequency' when the question specifically asks about controlling the frequency of MFA prompts.
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
✓
Session control: Sign-in frequency
The requirement specifies different MFA frequency based on device compliance: every 30 days for compliant devices and every sign-in for non-compliant devices. This is achieved by configuring a Session control called 'Sign-in frequency' in a Conditional Access policy, which allows administrators to set the reauthentication interval (e.g., 30 days) and can be scoped to specific conditions like device state (compliant vs. non-compliant). Grant controls like 'Require MFA' enforce MFA but do not control the frequency of re-prompting.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Grant control: Require MFA
Why it's wrong here
The 'Require MFA' grant control forces MFA for every sign-in that matches the policy conditions. It does not allow periodic re-authentication; it always requires MFA.
- ✓
Session control: Sign-in frequency
Why this is correct
Sign-in frequency session control allows the administrator to specify how often a user must re-authenticate. This can be set to every 30 days for compliant devices and to 0 (every time) for non-compliant devices to achieve the goal.
- ✗
Conditions: Device state
Why it's wrong here
The device state condition is used to include or exclude devices based on compliance status, but it does not control the frequency of authentication. It identifies which devices the policy applies to.
- ✗
Session control: Application restrictions
Why it's wrong here
Application restrictions session control is used to enforce application-level policies, such as blocking downloads or limiting access to certain apps. It does not affect authentication frequency.
Go deeper
Related to this question
Learn chapter
Compliance Concepts
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.
Key term
Compliance
Compliance is the process of ensuring that an organization follows laws, regulations, standards, and internal policies that apply to its operations and data handling.
About these practice questions
Courseiva writes every SC-900 question from scratch — 1,250 in total, each with an explanation and a wrong-answer breakdown. None are copied from real exams or dumps. Learn why practice questions differ from exam dumps →
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.