The answer is that users must access the SharePoint site through Microsoft Entra ID application proxy to apply real-time monitoring. This condition is required because Microsoft Defender for Cloud Apps session controls rely on the proxy to act as a reverse proxy, intercepting user traffic at the application layer so that policies can be inspected and enforced on the fly. Without routing traffic through the Entra ID proxy, Defender for Cloud Apps cannot intercept SharePoint Online sessions for real-time control. On the SC-200 exam, this concept tests your understanding of how session controls differ from API-based controls—a common trap is assuming conditional access policies alone suffice, but the proxy is the mandatory gateway. Remember the mnemonic “Proxy for Proxy” — you need the Entra ID Application Proxy to enable the Defender for Cloud Apps reverse proxy for session monitoring.
SC-200 Manage a security operations environment Practice Question
This SC-200 practice question tests your understanding of manage a security operations environment. The scenario asks you to isolate a root cause — eliminate options that address a different problem before choosing. 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 configuring Microsoft Defender for Cloud Apps session controls for a SharePoint site containing sensitive data. Which condition must be met to apply real-time monitoring?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Users must access the site through Microsoft Entra ID application proxy.
Microsoft Defender for Cloud Apps session controls for SharePoint require traffic to be routed through Microsoft Entra ID (formerly Azure AD) to enable real-time monitoring and control. The Microsoft Entra ID application proxy acts as a reverse proxy that intercepts user requests, allowing Defender for Cloud Apps to inspect and apply policies on the fly. Without this proxy, the session control cannot intercept traffic at the application layer for SharePoint Online.
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.
✗
The SharePoint site must be added as a custom app in Defender for Cloud Apps.
Why it's wrong here
SharePoint is already recognized; no custom app needed.
✓
Users must access the site through Microsoft Entra ID application proxy.
Why this is correct
Session control uses reverse proxy; Entra ID app proxy is required.
Related concept
Read the scenario before looking for a memorised answer.
✗
A browser extension must be installed on all client devices.
Why it's wrong here
Extension is for on-premises web apps, not cloud apps.
✗
Users must be configured with Conditional Access policies from Microsoft Entra ID.
Why it's wrong here
Conditional Access is required, but not app proxy.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often assume a browser extension is needed for session control, but Microsoft Entra ID application proxy provides the server-side interception required for SharePoint without client-side software.
Detailed technical explanation
How to think about this question
Session control works by redirecting user traffic through the Microsoft Entra ID application proxy, which acts as a reverse proxy. The proxy decrypts and inspects HTTPS traffic, then re-encrypts it before forwarding to SharePoint. This allows Defender for Cloud Apps to apply data loss prevention (DLP) policies, such as blocking downloads or masking sensitive data, in real time. A common subtlety is that the proxy must be configured for the specific SharePoint site collection, not just the tenant, to avoid performance overhead on non-sensitive sites.
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 SC-200 question in full detail.
Manage a security operations environment — This question tests Manage a security operations environment — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Users must access the site through Microsoft Entra ID application proxy. — Microsoft Defender for Cloud Apps session controls for SharePoint require traffic to be routed through Microsoft Entra ID (formerly Azure AD) to enable real-time monitoring and control. The Microsoft Entra ID application proxy acts as a reverse proxy that intercepts user requests, allowing Defender for Cloud Apps to inspect and apply policies on the fly. Without this proxy, the session control cannot intercept traffic at the application layer for SharePoint Online.
What should I do if I get this SC-200 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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