The answer is to configure the alert suppression setting in the analytics rule. This setting prevents duplicate incidents by establishing a suppression window during which Microsoft Sentinel will not generate a new incident from the same set of events, even if the scheduled rule runs again and detects the identical pattern. In the SC-200 exam, this scenario tests your understanding of how scheduled analytics rules handle event deduplication; the common trap is confusing alert suppression with incident grouping or entity mapping. The key technical concept is that alert suppression stops the rule from creating a fresh alert—and thus a new incident—until the configured time window expires, directly addressing the hourly duplication the analyst observed. Remember the memory tip: “Suppress the repeat, not the rule”—you are silencing duplicate alerts, not disabling the detection logic itself.
SC-200 Mitigate threats using Microsoft Sentinel Practice Question
This SC-200 practice question tests your understanding of mitigate threats using microsoft sentinel. This is a configuration task: choose the command set that satisfies every stated requirement. Small differences — like 'secret' vs 'password' or 'transport input ssh' vs 'all' — change whether the answer is correct. 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 SOC analyst has created a custom scheduled analytics rule in Microsoft Sentinel that runs every hour and generates an incident when a certain pattern is detected. The analyst notices that the same set of events is causing a new incident every hour, leading to duplicates. What should the analyst configure to prevent duplicate incident generation from the same events?
Set the alert suppression setting in the analytics rule
Correct: Alert suppression prevents duplicate alerts from the same events within a specified period.
B
Use an automation rule to close duplicates
Why wrong: An automation rule could close duplicates after they are created, but it is not the most efficient and does not prevent the initial creation.
C
Modify the query to use the 'summarize' operator
Why wrong: The 'summarize' operator aggregates data but does not by itself prevent duplicates across multiple runs if the same events are still in the query window.
D
Change the query to use the 'take' operator
Why wrong: The 'take' operator limits the number of rows returned, which could miss relevant events and does not address duplicate incidents.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Set the alert suppression setting in the analytics rule
Option A is correct because the alert suppression setting in a Microsoft Sentinel scheduled analytics rule allows you to configure a time window during which duplicate alerts from the same events are suppressed. When enabled, Sentinel will not generate a new incident from the same set of events until the suppression window expires, preventing the hourly duplication the analyst observed.
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.
✓
Set the alert suppression setting in the analytics rule
Why this is correct
Correct: Alert suppression prevents duplicate alerts from the same events within a specified period.
Related concept
Read the scenario before looking for a memorised answer.
✗
Use an automation rule to close duplicates
Why it's wrong here
An automation rule could close duplicates after they are created, but it is not the most efficient and does not prevent the initial creation.
✗
Modify the query to use the 'summarize' operator
Why it's wrong here
The 'summarize' operator aggregates data but does not by itself prevent duplicates across multiple runs if the same events are still in the query window.
✗
Change the query to use the 'take' operator
Why it's wrong here
The 'take' operator limits the number of rows returned, which could miss relevant events and does not address duplicate incidents.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often confuse alert suppression (preventing duplicate alerts) with incident closing mechanisms (automation rules), leading them to choose Option B instead of the correct suppression setting.
Detailed technical explanation
How to think about this question
Alert suppression works by using a hashing mechanism on the event fields that define the suppression criteria (e.g., entity identifiers or custom fields). Once an alert is generated, Sentinel stores a hash of those fields and suppresses any subsequent alerts matching the same hash within the configured window. This is particularly useful for high-volume events like repeated failed logins from the same IP, where you want a single incident per time period rather than one per hour.
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.
Related glossary terms
Concepts from this question explained
These glossary pages explain the core terms tested in this SC-200 question in full detail.
Mitigate threats using Microsoft Sentinel — This question tests Mitigate threats using Microsoft Sentinel — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Set the alert suppression setting in the analytics rule — Option A is correct because the alert suppression setting in a Microsoft Sentinel scheduled analytics rule allows you to configure a time window during which duplicate alerts from the same events are suppressed. When enabled, Sentinel will not generate a new incident from the same set of events until the suppression window expires, preventing the hourly duplication the analyst observed.
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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