Quick Answer
The answer is Microsoft Entra Conditional Access. This feature is correct because it enforces compliance-based access control at the authentication layer, integrating directly with Intune compliance policies to block or allow device access to corporate email, such as Exchange Online, based on real-time compliance status. On the Microsoft Cybersecurity Architect exam, this scenario tests your understanding of how Conditional Access acts as the policy engine that evaluates device health before granting access, often appearing in questions about securing hybrid or cloud email environments. A common trap is confusing Intune compliance policies themselves with the enforcement mechanism—remember, Intune defines the rules, but Conditional Access enforces them at the login gate. Memory tip: think of Conditional Access as the bouncer checking your ID (compliance status) at the door, while Intune is the ID issuer.
This SC-100 practice question tests your understanding of design solutions that align with security best practices and priorities. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. 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.
A company uses Microsoft Intune to manage devices. They want to ensure that all devices accessing corporate email are compliant with security policies before they can connect. Which feature should they enable?
Microsoft Entra Conditional Access
Conditional Access can require device compliance from Intune.
Microsoft Defender for Endpoint
Why wrong: Defender for Endpoint is for threat detection, not access control.
Microsoft Intune App Protection Policies
Why wrong: App protection policies protect app data, not device-level access.
Mobile Device Management (MDM) enrollment
Why wrong: MDM enrollment alone does not enforce conditional access.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
Microsoft Entra Conditional Access
Microsoft Entra Conditional Access is the correct feature because it enforces compliance-based access control at the authentication layer. By integrating with Intune compliance policies, Conditional Access can block or allow device access to corporate email (e.g., Exchange Online) based on real-time compliance status, ensuring only compliant devices can connect.
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.
Microsoft Entra Conditional Access
Why this is correct
Conditional Access can require device compliance from Intune.
Related concept
Read the scenario before looking for a memorised answer.
Microsoft Defender for Endpoint
Why it's wrong here
Defender for Endpoint is for threat detection, not access control.
Microsoft Intune App Protection Policies
Why it's wrong here
App protection policies protect app data, not device-level access.
Mobile Device Management (MDM) enrollment
Why it's wrong here
MDM enrollment alone does not enforce conditional access.
Common exam traps
The trap here is that candidates often confuse Intune compliance policies themselves with the enforcement mechanism, not realizing that compliance policies only mark a device as compliant or non-compliant—they do not block access; Conditional Access is the gate that enforces the block.
Detailed technical explanation
Conditional Access uses signals such as device compliance (from Intune), user risk (from Identity Protection), and location to evaluate access in real time via the Entra ID authentication pipeline. Under the hood, it issues an access token only after the device presents a valid compliance certificate (issued by Intune) during the OAuth 2.0 flow. In a real-world scenario, if a device falls out of compliance (e.g., missing a required patch), Conditional Access can immediately revoke access without waiting for a periodic sync.
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.
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FAQ
Design solutions that align with security best practices and priorities — This question tests Design solutions that align with security best practices and priorities — Read the scenario before looking for a memorised answer..
The correct answer is: Microsoft Entra Conditional Access — Microsoft Entra Conditional Access is the correct feature because it enforces compliance-based access control at the authentication layer. By integrating with Intune compliance policies, Conditional Access can block or allow device access to corporate email (e.g., Exchange Online) based on real-time compliance status, ensuring only compliant devices can connect.
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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