- A
Microsoft Intune
Why wrong: Intune is for device management, not threat detection.
- B
Microsoft Defender for Cloud Apps
Why wrong: Defender for Cloud Apps focuses on cloud apps, not endpoints.
- C
Microsoft Purview
Why wrong: Purview is for governance and compliance, not threat detection.
- D
Microsoft Sentinel
Sentinel provides SIEM and SOAR capabilities across multiple sources.
- E
Microsoft Defender XDR
Defender XDR provides integrated detection and response across domains.
Question 904 of 1,411
Microsoft Sentinel and Defender XDR for Cross-Domain Threat Detection
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 Microsoft security solutions can be used to detect and respond to threats across email, endpoints, and identities? (Choose two.)
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 Sentinel
Microsoft Sentinel (option D) is correct because it is a cloud-native SIEM and SOAR platform that ingests logs from across the entire environment—including email, endpoints, and identity sources—to detect and respond to threats using analytics and automated playbooks. Microsoft Defender XDR (option E) is correct because it is a unified, pre- and post-breach detection and response solution that correlates signals across email (Exchange Online), endpoints (Microsoft Defender for Endpoint), and identities (Microsoft Defender for Identity).
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.
- ✗
Microsoft Intune
Why it's wrong here
Intune is for device management, not threat detection.
- ✗
Microsoft Defender for Cloud Apps
Why it's wrong here
Defender for Cloud Apps focuses on cloud apps, not endpoints.
- ✗
Microsoft Purview
Why it's wrong here
Purview is for governance and compliance, not threat detection.
- ✓
Microsoft Sentinel
Why this is correct
Sentinel provides SIEM and SOAR capabilities across multiple sources.
Related concept
Read the scenario before looking for a memorised answer.
- ✓
Microsoft Defender XDR
Why this is correct
Defender XDR provides integrated detection and 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 often confuse Microsoft Defender for Cloud Apps (a CASB focused on cloud app security) with a cross-domain detection and response solution, but it does not natively cover email or endpoint threat detection, making it an incorrect choice for this question.
Detailed technical explanation
How to think about this question
Under the hood, Microsoft Defender XDR uses a shared signals architecture where alerts from Defender for Endpoint, Defender for Identity, Defender for Office 365, and Defender for Cloud Apps are automatically correlated into a single incident, enabling automated investigation and response (AIR) across domains. Microsoft Sentinel ingests data via connectors like the Microsoft 365 Defender connector and the Azure Active Directory connector, then applies built-in analytics rules and UEBA to detect multi-stage attacks such as lateral movement from a compromised identity to an endpoint. A real-world scenario is a phishing email that delivers a malicious attachment to a user's mailbox; Defender for Office 365 detects the email, Defender for Endpoint blocks the payload on the endpoint, Defender for Identity flags the compromised account, and Sentinel correlates all these alerts into a single incident for SOC triage.
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: Microsoft Sentinel — Microsoft Sentinel (option D) is correct because it is a cloud-native SIEM and SOAR platform that ingests logs from across the entire environment—including email, endpoints, and identity sources—to detect and respond to threats using analytics and automated playbooks. Microsoft Defender XDR (option E) is correct because it is a unified, pre- and post-breach detection and response solution that correlates signals across email (Exchange Online), endpoints (Microsoft Defender for Endpoint), and identities (Microsoft Defender for Identity).
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
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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