- A
Microsoft Purview
Why wrong: Data governance and compliance.
- B
Microsoft Defender for Office 365
Part of the XDR suite.
- C
Microsoft Sentinel
Why wrong: A separate SIEM product.
- D
Microsoft Defender for Identity
Identity threat detection.
- E
Microsoft Defender for Endpoint
Endpoint detection and response.
Question 893 of 1,411
SC-900 Microsoft Defender XDR Practice Question
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. A key principle to apply: microsoft Defender XDR. 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 THREE components are part of Microsoft Defender XDR? (Choose three.)
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
✓
Microsoft Defender for Office 365
Microsoft Defender XDR is a unified security operations platform that integrates threat signals across endpoints, identities, and email/collaboration tools. Its core components include Microsoft Defender for Office 365 (email and collaboration protection), Microsoft Defender for Identity (identity security), and Microsoft Defender for Endpoint (endpoint detection and response). Option A (Microsoft Purview) is a data governance and compliance solution, not part of XDR. Option C (Microsoft Sentinel) is a cloud-native SIEM that can ingest data from XDR but is not a built-in component of Defender XDR. Therefore, the correct answers are B, D, and E.
Key principle: Microsoft Defender XDR
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Microsoft Purview
Why it's wrong here
Data governance and compliance.
- ✓
Microsoft Defender for Office 365
Why this is correct
Part of the XDR suite.
Related concept
Microsoft Defender XDR
- ✗
Microsoft Sentinel
Why it's wrong here
A separate SIEM product.
- ✓
Microsoft Defender for Identity
Why this is correct
Identity threat detection.
Related concept
Microsoft Defender XDR
- ✓
Microsoft Defender for Endpoint
Why this is correct
Endpoint detection and response.
Related concept
Microsoft Defender XDR
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates confuse Microsoft Sentinel (a SIEM) as part of Defender XDR, but Sentinel is an external analytics layer that can ingest Defender XDR data, not a built-in component of the XDR suite.
Detailed technical explanation
How to think about this question
Microsoft Defender XDR unifies signals from Defender for Endpoint, Defender for Office 365, Defender for Identity, and Defender for Cloud Apps into a single incident queue. Under the hood, it uses the Microsoft 365 Defender portal's correlation engine to link alerts from these components using common entities like user accounts, device IDs, and email message IDs, enabling automated playbooks that can contain a compromised user or device without manual intervention.
KKey Concepts to Remember
- Microsoft Defender XDR
- Microsoft Defender for Office 365
- Microsoft Defender for Identity
- Microsoft Defender for Endpoint
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
Microsoft Defender XDR
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.
Review microsoft Defender XDR, then practise related SC-900 questions on the same topic to reinforce the concept.
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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 — Microsoft Defender XDR.
What is the correct answer to this question?
The correct answer is: Microsoft Defender for Office 365 — Microsoft Defender XDR is a unified security operations platform that integrates threat signals across endpoints, identities, and email/collaboration tools. Its core components include Microsoft Defender for Office 365 (email and collaboration protection), Microsoft Defender for Identity (identity security), and Microsoft Defender for Endpoint (endpoint detection and response). Option A (Microsoft Purview) is a data governance and compliance solution, not part of XDR. Option C (Microsoft Sentinel) is a cloud-native SIEM that can ingest data from XDR but is not a built-in component of Defender XDR. Therefore, the correct answers are B, D, and E.
What should I do if I get this SC-900 question wrong?
Review microsoft Defender XDR, then practise related SC-900 questions on the same topic to reinforce the concept.
What is the key concept behind this question?
Microsoft Defender XDR
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Last reviewed: Jul 4, 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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