This MS-900 practice question tests your understanding of describe microsoft 365 apps and services. 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 365 and wants to ensure that only managed devices can access corporate email in Exchange Online. Which conditional access policy setting should you configure?
Require device to be marked as compliant
This ensures only Intune-managed compliant devices can access email.
Require approved client app
Why wrong: This is for app-level protection, not device compliance.
Require device to be joined to Azure AD
Why wrong: Joined devices are not necessarily managed by Intune.
Require multi-factor authentication
Why wrong: MFA secures identity but does not check device management.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
Require device to be marked as compliant
Option A is correct because the 'Require device to be marked as compliant' setting in a Conditional Access policy integrates with Microsoft Intune to enforce that only devices meeting compliance policies (e.g., encryption, OS version, jailbreak detection) can access Exchange Online. This ensures corporate email is accessible only from managed, trusted devices, directly addressing the requirement.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
For each option: why learners choose it and why it is or isn't the right answer here.
Require device to be marked as compliant
Why this is correct
This ensures only Intune-managed compliant devices can access email.
Related concept
Read the scenario before looking for a memorised answer.
Require approved client app
Why it's wrong here
This is for app-level protection, not device compliance.
Require device to be joined to Azure AD
Why it's wrong here
Joined devices are not necessarily managed by Intune.
Require multi-factor authentication
Why it's wrong here
MFA secures identity but does not check device management.
Common exam traps
The trap here is that candidates often confuse 'device compliance' with 'device join status' or 'app protection,' mistakenly selecting Azure AD join or approved client app when the question specifically targets managed device enforcement via compliance policies.
Detailed technical explanation
Under the hood, the 'Require device to be marked as compliant' grant control uses the device's compliance status reported by Intune via the Microsoft Graph API. When a device is non-compliant, the policy can block access or allow limited access (e.g., only browser-based email) using session controls. In a real-world scenario, an organization might combine this with a 'Require approved client app' to enforce both device compliance and app-level protection for a defense-in-depth approach.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
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.
What to study next
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FAQ
Describe Microsoft 365 apps and services — This question tests Describe Microsoft 365 apps and services — Read the scenario before looking for a memorised answer..
The correct answer is: Require device to be marked as compliant — Option A is correct because the 'Require device to be marked as compliant' setting in a Conditional Access policy integrates with Microsoft Intune to enforce that only devices meeting compliance policies (e.g., encryption, OS version, jailbreak detection) can access Exchange Online. This ensures corporate email is accessible only from managed, trusted devices, directly addressing the requirement.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Read the scenario before looking for a memorised answer.
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Last reviewed: Jun 24, 2026
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