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.
Your organization uses Microsoft Defender XDR. A user reports that their device is behaving erratically, with unexpected pop-ups and high CPU usage. You suspect malware infection. You need to collect forensic data from the device for analysis. What should you do?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Initiate a live response session on the device from the Microsoft 365 Defender portal.
Initiating a live response session in the Microsoft 365 Defender portal allows you to collect forensic data, run commands, and investigate the device in real-time. Option A is incorrect because a full scan does not collect forensic data. Option C is incorrect because the device is already onboarded. Option D is incorrect because a custom detection rule is for automated detection, not forensic collection.
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.
✗
Create a custom detection rule in Microsoft Defender for Endpoint to capture the behavior.
Why it's wrong here
Custom detection rules are for automated alerts, not immediate forensic collection.
✗
Offboard the device and re-onboard it to trigger a fresh investigation.
Why it's wrong here
Offboarding and re-onboarding does not collect forensic data.
✓
Initiate a live response session on the device from the Microsoft 365 Defender portal.
Why this is correct
Live response provides remote shell access to collect forensic artifacts.
Related concept
Read the scenario before looking for a memorised answer.
✗
Run a full antivirus scan using Microsoft Defender Antivirus.
Why it's wrong here
A scan detects malware but does not collect forensic data for analysis.
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 cloud solutions architect for a retail company is evaluating services for a new workload. The correct answer here reflects best practice for the specific scenario described — not a general cloud recommendation. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Cloud exam questions reward reading the constraint carefully: the same technology can be right or wrong depending on the use case.
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: Initiate a live response session on the device from the Microsoft 365 Defender portal. — Initiating a live response session in the Microsoft 365 Defender portal allows you to collect forensic data, run commands, and investigate the device in real-time. Option A is incorrect because a full scan does not collect forensic data. Option C is incorrect because the device is already onboarded. Option D is incorrect because a custom detection rule is for automated detection, not forensic collection.
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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