- A
Ensure that all Microsoft Defender services are onboarded to the same tenant and that the incidents feature is enabled
Microsoft Defender XDR automatically correlates alerts from onboarded services into incidents when all services are in the same tenant and the feature is enabled by default.
- B
Configure a custom detection rule in Microsoft 365 Defender
Why wrong: Custom detection rules are for creating custom alerts, not for automatic correlation of existing alerts.
- C
Create an advanced hunting query to join alerts from different data sources
Why wrong: Advanced hunting is for proactive hunting, not automatic correlation.
- D
Enable Microsoft Sentinel and configure incident creation rules
Why wrong: Microsoft Sentinel is a SIEM, but automatic correlation within Defender XDR does not require Sentinel.
Quick Answer
The answer is to ensure that all Microsoft Defender services are onboarded to the same tenant and that the incidents feature is enabled. This is correct because Microsoft Defender XDR automatic incident correlation is a built-in capability of the Microsoft 365 Defender backend, which fuses related alerts from services like Defender for Endpoint and Defender for Office 365 into a single incident based on shared entities and attack signals—no extra connectors or manual rules are required. On the SC-900 exam, this concept tests your understanding of how XDR unifies detection across the Microsoft security stack; a common trap is assuming you need to configure a separate correlation rule or third-party tool. Remember, the key is tenant unity: if all Defender workloads live under the same tenant and incidents are turned on, the correlation happens automatically. Memory tip: “One tenant, one incident view—no extra glue needed.”
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 is deploying Microsoft Defender XDR to detect and respond to advanced threats. You need to ensure that security alerts from Microsoft Defender for Endpoint are automatically correlated with alerts from Microsoft Defender for Office 365. What should you 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
Ensure that all Microsoft Defender services are onboarded to the same tenant and that the incidents feature is enabled
Microsoft Defender XDR automatically correlates alerts from different Microsoft Defender services (e.g., Defender for Endpoint and Defender for Office 365) when they are onboarded to the same tenant and the incidents feature is enabled. This built-in correlation uses the Microsoft 365 Defender backend to fuse related alerts into a single incident, providing a unified view of the attack chain without additional configuration.
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.
- ✓
Ensure that all Microsoft Defender services are onboarded to the same tenant and that the incidents feature is enabled
Why this is correct
Microsoft Defender XDR automatically correlates alerts from onboarded services into incidents when all services are in the same tenant and the feature is enabled by default.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Configure a custom detection rule in Microsoft 365 Defender
Why it's wrong here
Custom detection rules are for creating custom alerts, not for automatic correlation of existing alerts.
- ✗
Create an advanced hunting query to join alerts from different data sources
Why it's wrong here
Advanced hunting is for proactive hunting, not automatic correlation.
- ✗
Enable Microsoft Sentinel and configure incident creation rules
Why it's wrong here
Microsoft Sentinel is a SIEM, but automatic correlation within Defender XDR does not require Sentinel.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates may think additional tools like Sentinel or custom rules are needed for correlation, but Microsoft Defender XDR provides automatic cross-service correlation by default when all services are in the same tenant and incidents are enabled.
Detailed technical explanation
How to think about this question
Under the hood, Microsoft Defender XDR uses a correlation engine that analyzes signals from all onboarded Defender services (e.g., Defender for Endpoint, Defender for Office 365, Defender for Identity) and applies machine learning models to fuse alerts that share common entities like user accounts, devices, or IP addresses. This incident fusion happens in real time, reducing alert fatigue by presenting a single incident for a multi-stage attack, such as a phishing email that leads to endpoint compromise.
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
Got this wrong? Here's your next step.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
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Describe the capabilities of Microsoft security solutions — study guide chapter
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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: Ensure that all Microsoft Defender services are onboarded to the same tenant and that the incidents feature is enabled — Microsoft Defender XDR automatically correlates alerts from different Microsoft Defender services (e.g., Defender for Endpoint and Defender for Office 365) when they are onboarded to the same tenant and the incidents feature is enabled. This built-in correlation uses the Microsoft 365 Defender backend to fuse related alerts into a single incident, providing a unified view of the attack chain without additional configuration.
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.
About these practice questions
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Last reviewed: Jun 24, 2026
This SC-900 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-900 exam.
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