- A
Create a custom detection rule to tune the detection logic.
Custom detections allow fine-tuning to reduce false positives.
- B
Create a suppression rule for the alert.
Why wrong: Suppression hides but doesn't fix the detection logic.
- C
Use an automation rule to automatically close the false positive incidents.
Why wrong: Automation handles incidents post-generation, doesn't prevent alerts.
- D
Disable the built-in detection rule.
Why wrong: Disabling removes detection entirely, not ideal.
Question 936 of 1,639
SC-200 Manage a security operations environment Practice Question
This SC-200 practice question tests your understanding of manage a security operations environment. 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 Microsoft Defender XDR environment is experiencing high false positive rates for a specific type of alert. You need to reduce the noise without completely disabling the alert. What is the most effective method?
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Create a custom detection rule to tune the detection logic.
Creating a custom detection rule allows you to refine the detection logic by adding specific conditions, such as excluding known benign processes or IP addresses, thereby reducing false positives while retaining the alert's core detection capability. This approach directly tunes the detection mechanism rather than masking or disabling it, aligning with the goal of reducing noise without completely disabling the alert.
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 to tune the detection logic.
Why this is correct
Custom detections allow fine-tuning to reduce false positives.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Create a suppression rule for the alert.
Why it's wrong here
Suppression hides but doesn't fix the detection logic.
- ✗
Use an automation rule to automatically close the false positive incidents.
Why it's wrong here
Automation handles incidents post-generation, doesn't prevent alerts.
- ✗
Disable the built-in detection rule.
Why it's wrong here
Disabling removes detection entirely, not ideal.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often confuse suppression rules (which hide alerts) with tuning the detection logic itself, leading them to choose Option B because they think hiding the alert is equivalent to reducing noise, but it does not reduce the underlying detection rate or resource consumption.
Detailed technical explanation
How to think about this question
Custom detection rules in Microsoft Defender XDR are built using Advanced Hunting queries (Kusto Query Language) that can incorporate exclusion logic, such as filtering out processes signed by specific certificates or excluding network traffic to trusted IP ranges. This allows fine-grained tuning at the detection layer, whereas suppression rules operate at the alert display layer and automation rules at the incident response layer, neither of which reduces the actual detection rate. In a real-world scenario, a custom rule might exclude a legitimate administrative tool like PsExec from triggering a lateral movement alert by checking the parent process or command-line arguments.
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 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.
What to study next
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FAQ
Questions learners often ask
What does this SC-200 question test?
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: Create a custom detection rule to tune the detection logic. — Creating a custom detection rule allows you to refine the detection logic by adding specific conditions, such as excluding known benign processes or IP addresses, thereby reducing false positives while retaining the alert's core detection capability. This approach directly tunes the detection mechanism rather than masking or disabling it, aligning with the goal of reducing noise without completely disabling the alert.
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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Last reviewed: Jul 4, 2026
This SC-200 practice question is part of Courseiva's free Microsoft certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the SC-200 exam.
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