- A
Microsoft Defender for Cloud
Why wrong: Microsoft Defender for Cloud provides cloud security posture management (CSPM) and workload protection, but it is not a full SIEM that aggregates logs from on-premises and third-party sources.
- B
Microsoft 365 Defender
Why wrong: Microsoft 365 Defender is an extended detection and response (XDR) solution for Microsoft 365 ecosystem (endpoints, email, identity, etc.). It does not serve as a primary SIEM for multi-source, cross-platform log collection.
- C
Microsoft Sentinel
Microsoft Sentinel is a scalable, cloud-native SIEM that collects data from any source, applies analytics and machine learning for threat detection, and supports proactive threat hunting.
- D
Microsoft Defender for Identity
Why wrong: Microsoft Defender for Identity uses on-premises Active Directory signals to detect identity-based attacks. It is not a general SIEM for diverse log sources.
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. Match the stated requirement to the specific cloud service, access model, or configuration option — many options are valid in isolation but not for this scenario. 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.
A security operations center (SOC) team needs to collect security logs from Azure services, on-premises servers, and third-party firewalls. They want a cloud-native solution that provides advanced threat detection through analytics, machine learning, and the ability to hunt for threats across all data sources. Which Microsoft solution should they deploy?
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 is the correct choice because it is a cloud-native SIEM (Security Information and Event Management) solution that ingests logs from Azure services, on-premises servers, and third-party firewalls. It provides advanced threat detection via built-in analytics, machine learning models, and a powerful query language (Kusto Query Language) for threat hunting across all data 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.
- ✗
Microsoft Defender for Cloud
Why it's wrong here
Microsoft Defender for Cloud provides cloud security posture management (CSPM) and workload protection, but it is not a full SIEM that aggregates logs from on-premises and third-party sources.
- ✗
Microsoft 365 Defender
Why it's wrong here
Microsoft 365 Defender is an extended detection and response (XDR) solution for Microsoft 365 ecosystem (endpoints, email, identity, etc.). It does not serve as a primary SIEM for multi-source, cross-platform log collection.
- ✓
Microsoft Sentinel
Why this is correct
Microsoft Sentinel is a scalable, cloud-native SIEM that collects data from any source, applies analytics and machine learning for threat detection, and supports proactive threat hunting.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Microsoft Defender for Identity
Why it's wrong here
Microsoft Defender for Identity uses on-premises Active Directory signals to detect identity-based attacks. It is not a general SIEM for diverse log sources.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is confusing Microsoft Defender for Cloud (a CSPM/CWPP tool) with Microsoft Sentinel (a cloud-native SIEM), as both appear in the Azure portal and deal with security logs, but only Sentinel provides centralized log ingestion, analytics, and threat hunting across heterogeneous sources.
Detailed technical explanation
How to think about this question
Microsoft Sentinel uses Log Analytics workspaces as its underlying data store, with connectors for Common Event Format (CEF) and Syslog to ingest third-party firewall logs. Its fusion engine applies machine learning to correlate alerts across multiple data sources, and the built-in hunting queries leverage KQL to detect advanced threats like multi-stage attacks that span on-premises and cloud environments.
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.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
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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 is the correct choice because it is a cloud-native SIEM (Security Information and Event Management) solution that ingests logs from Azure services, on-premises servers, and third-party firewalls. It provides advanced threat detection via built-in analytics, machine learning models, and a powerful query language (Kusto Query Language) for threat hunting across all data 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.
About these practice questions
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Last reviewed: Jun 11, 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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