The answer is to suspend the user, revoke the user’s access to the third-party app, and add the third-party app to the blocked apps list in Defender for Cloud Apps. These three actions directly contain a data exfiltration incident by cutting off the user’s ability to continue uploading sensitive files, removing their current access to the malicious app, and preventing any further use of that app across the organization. On the SC-200 exam, this scenario tests your ability to distinguish containment from recovery or classification—common traps include choosing to remove files from the third-party app (which is post-incident cleanup, not containment) or applying sensitivity labels (a preventive classification step). Remember the containment triad: stop the user, revoke the app session, block the app entirely. A useful mnemonic is “S-R-B” for Suspend, Revoke, Block.
SC-200 Respond to security incidents Practice Question
This SC-200 practice question tests your understanding of respond to security incidents. 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.
You are investigating a data exfiltration incident in Microsoft Defender for Cloud Apps. The investigation reveals that a user downloaded sensitive files from SharePoint and uploaded them to a third-party cloud storage app. Which THREE actions should you take to contain the incident?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Apply a session policy to block uploads to unauthorized apps.
Options A, B, and D are correct because suspending the user, revoking access, and blocking the app contain the threat. Option C is wrong because removing files from the third-party app may be recovery but not containment. Option E is wrong because applying sensitivity labels is a classification action, not immediate containment.
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.
✓
Apply a session policy to block uploads to unauthorized apps.
Why this is correct
Session policies can block uploads in real-time.
Related concept
Read the scenario before looking for a memorised answer.
✓
Suspend the user account in Microsoft 365 Defender.
Why this is correct
Suspending the account stops all access immediately.
Related concept
Read the scenario before looking for a memorised answer.
✓
Add the third-party app to the blocked apps list in Defender for Cloud Apps.
Why this is correct
Blocking the app prevents future uploads.
Related concept
Read the scenario before looking for a memorised answer.
✗
Delete the files from the third-party cloud app.
Why it's wrong here
Deleting files is a recovery step; containment should focus on preventing further access.
✗
Apply a sensitivity label to the files to prevent sharing.
Why it's wrong here
Labels are preventive, not immediate containment.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Many certification questions include familiar terms but test a specific constraint. Read the exact wording before choosing an answer that is generally true but wrong for this case.
Detailed technical explanation
How to think about this question
This question should be treated as a scenario, not a definition check. Identify the problem, the constraint and the best action. Then compare each option against those facts.
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.
Use explanations to understand the rule behind the answer.
TExam Day Tips
→Underline the problem statement mentally.
→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 media company stores terabytes of video archives that are accessed once a year for audit purposes. Moving these objects to a cold storage tier (Azure Archive, S3 Glacier, or Google Nearline) costs a fraction of hot storage. Questions like this test whether you understand storage tiers, access frequency tradeoffs, and retrieval latency requirements.
Related glossary terms
Concepts from this question explained
These glossary pages explain the core terms tested in this SC-200 question in full detail.
Identify which SC-200 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
Respond to security incidents — This question tests Respond to security incidents — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Apply a session policy to block uploads to unauthorized apps. — Options A, B, and D are correct because suspending the user, revoking access, and blocking the app contain the threat. Option C is wrong because removing files from the third-party app may be recovery but not containment. Option E is wrong because applying sensitivity labels is a classification action, not immediate containment.
What should I do if I get this SC-200 question wrong?
Identify which SC-200 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Question Discussion
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