The answer is automated investigation and response across domains, which is a core capability of Microsoft Defender XDR. This is correct because XDR, or Extended Detection and Response, is specifically designed to correlate alerts from multiple domains—such as endpoint, email, identity, and cloud apps—into a single incident, enabling cross-domain detection that reveals the full attack story in one place. On the SC-900 exam, this concept tests your understanding of how Microsoft’s security solutions integrate beyond siloed tools; a common trap is confusing XDR with a single-domain tool like Microsoft Defender for Endpoint. Remember that “X” in XDR stands for “cross-domain,” so think of it as the glue that connects alerts across email, identity, endpoints, and cloud apps. A helpful memory tip: “X marks the spot across all domains.”
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. 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.
Which TWO of the following are capabilities of Microsoft Defender XDR? (Choose two.)
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Correlate alerts from multiple domains into a single incident
Microsoft Defender XDR correlates alerts from multiple domains—such as endpoint, email, identity, and cloud apps—into a single incident. This cross-domain correlation is a core capability of the XDR (Extended Detection and Response) solution, enabling security teams to see the full attack story in one place.
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.
✓
Correlate alerts from multiple domains into a single incident
Why this is correct
Defender XDR correlates alerts across endpoints, email, etc.
Related concept
Read the scenario before looking for a memorised answer.
✗
Data loss prevention for sensitive information
Why it's wrong here
DLP is a Microsoft Purview capability.
✗
Centralized log analytics for custom queries
Why it's wrong here
Log analytics is a Microsoft Sentinel capability.
✗
Identity governance and access reviews
Why it's wrong here
Identity governance is a Microsoft Entra capability.
✓
Automated investigation and response across domains
Why this is correct
Defender XDR automates response across domains.
Related concept
Read the scenario before looking for a memorised answer.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates confuse the broad security portfolio—such as DLP, SIEM, and identity governance—with the specific cross-domain correlation and automated response capabilities that define Microsoft Defender XDR.
Detailed technical explanation
How to think about this question
Microsoft Defender XDR uses a unified data schema and automated correlation engine that ingests signals from Defender for Endpoint, Defender for Office 365, Defender for Identity, and Defender for Cloud Apps. When a suspicious email leads to a malicious file download and then lateral movement, the XDR engine automatically merges these alerts into a single incident with a common attack timeline, reducing alert fatigue and enabling faster response.
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.
Related glossary terms
Concepts from this question explained
These glossary pages explain the core terms tested in this SC-900 question in full detail.
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: Correlate alerts from multiple domains into a single incident — Microsoft Defender XDR correlates alerts from multiple domains—such as endpoint, email, identity, and cloud apps—into a single incident. This cross-domain correlation is a core capability of the XDR (Extended Detection and Response) solution, enabling security teams to see the full attack story in one place.
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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These questions test the same concept from different angles. Work through them to make sure you can recognise it however the exam phrases it.
Variation 1. Which THREE capabilities are provided by Microsoft Defender XDR? (Choose THREE.)
medium
A.Cloud security posture management
✓ B.Advanced hunting
✓ C.Automated investigation and response
✓ D.Incident management
E.Vulnerability management
Why B: Microsoft Defender XDR provides incident management (correlated alerts), automated investigation and response (self-healing), and advanced hunting (KQL queries). Vulnerability management is part of Defender for Endpoint, not the XDR platform. Cloud security posture management is from Defender for Cloud. Defender XDR is for cross-domain threat protection.
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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.
Question Discussion
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