- A
Fusion rule
Why wrong: Fusion uses machine learning to correlate alerts, not custom aggregation logic.
- B
ML Behavior Analytics rule
Why wrong: ML Behavior Analytics is for UEBA, not custom aggregation thresholds.
- C
Scheduled query rule
Scheduled query rules allow custom KQL with time windows and aggregation.
- D
Near-real-time (NRT) query rule
Why wrong: NRT rules run every minute and cannot aggregate over a 5-minute window.
Question 102 of 1,411
SC-900 Practice Question: Describe the capabilities of Microsoft security solutions
This SC-900 practice question tests your understanding of describe the capabilities of microsoft security solutions. 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.
Your organization uses Microsoft Sentinel to detect threats. A security analyst needs to create a custom analytics rule that triggers an incident when a user accesses more than 1000 files from an external IP address within 5 minutes. Which rule type should the analyst configure?
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
✓
Scheduled query rule
A scheduled query rule is the correct choice because it allows the analyst to define a custom KQL query that counts file access events from external IPs and triggers an incident when the threshold of 1000 files within 5 minutes is exceeded. This rule type supports aggregation, time windows, and custom thresholds, making it ideal for detecting specific behavioral patterns like high-volume access from external sources.
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.
- ✗
Fusion rule
Why it's wrong here
Fusion uses machine learning to correlate alerts, not custom aggregation logic.
- ✗
ML Behavior Analytics rule
Why it's wrong here
ML Behavior Analytics is for UEBA, not custom aggregation thresholds.
- ✓
Scheduled query rule
Why this is correct
Scheduled query rules allow custom KQL with time windows and aggregation.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Near-real-time (NRT) query rule
Why it's wrong here
NRT rules run every minute and cannot aggregate over a 5-minute window.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates confuse near-real-time (NRT) rules with scheduled rules, assuming NRT can handle any time window, but NRT rules are limited to a 1-minute lookback and cannot aggregate over longer periods like 5 minutes.
Detailed technical explanation
How to think about this question
Scheduled query rules in Microsoft Sentinel use Kusto Query Language (KQL) to define the detection logic, and they support configurable run frequencies (e.g., every 5 minutes) and lookback periods (e.g., 5 minutes) to aggregate events. The rule evaluates the query result count against a threshold, and when exceeded, it creates an incident with customizable severity and tactics. A subtle behavior is that the query must be designed to handle time windows correctly, often using the `bin()` function or `where TimeGenerated > ago(5m)` to ensure accurate aggregation within the specified duration.
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.
What to study next
Got this wrong? Here's your next step.
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FAQ
Questions learners often ask
What does this SC-900 question test?
Describe the capabilities of Microsoft security solutions — This question tests Describe the capabilities of Microsoft security solutions — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Scheduled query rule — A scheduled query rule is the correct choice because it allows the analyst to define a custom KQL query that counts file access events from external IPs and triggers an incident when the threshold of 1000 files within 5 minutes is exceeded. This rule type supports aggregation, time windows, and custom thresholds, making it ideal for detecting specific behavioral patterns like high-volume access from external sources.
What should I do if I get this SC-900 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
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