The answer is Microsoft Defender for Cloud, Microsoft Defender for Identity, and Microsoft Sentinel. These three solutions work together to provide comprehensive threat detection and response across hybrid cloud environments by unifying security signals from Azure, on-premises, and other cloud platforms like AWS and GCP. Microsoft Defender for Cloud delivers continuous assessment and adaptive protections for workloads, while Defender for Identity uses on-premises Active Directory signals to detect lateral movement and identity-based attacks, and Sentinel acts as a cloud-native SIEM to correlate alerts across the entire hybrid landscape. On the Microsoft Cybersecurity Architect exam, this triad tests your understanding of how Microsoft’s security portfolio layers detection capabilities rather than relying on a single tool—a common trap is choosing only Defender for Cloud and forgetting the identity and SIEM components. Memory tip: think “Cloud, Identity, Sentinel” as the three pillars of hybrid threat detection.
SC-100 Practice Question: Design solutions that align with security best practices and priorities
This SC-100 practice question tests your understanding of design solutions that align with security best practices and priorities. 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.
Which THREE Microsoft security solutions can be used to detect and respond to threats across hybrid cloud environments? (Choose three.)
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 Cloud
Microsoft Defender for Cloud is correct because it provides unified security management and threat protection across hybrid cloud workloads, including Azure, on-premises, and other cloud platforms like AWS and GCP. It uses integrated vulnerability assessment, just-in-time access, and adaptive application controls to detect and respond to threats in real time, leveraging Microsoft Defender plans for servers, SQL, storage, and containers.
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 this is correct
Provides threat detection for workloads across clouds and on-premises.
Related concept
Read the scenario before looking for a memorised answer.
✓
Microsoft Sentinel
Why this is correct
SIEM that collects security data from hybrid environments.
Related concept
Read the scenario before looking for a memorised answer.
✗
Microsoft Defender for Office 365
Why it's wrong here
Focused on email and collaboration threats, not hybrid cloud infrastructure.
✗
Microsoft Intune
Why it's wrong here
Device management, not threat detection.
✓
Microsoft Defender for Identity
Why this is correct
Detects threats in on-premises Active Directory.
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 Office 365 with a broader hybrid cloud security solution, but it is limited to the Microsoft 365 suite and does not cover compute, network, or identity threats across hybrid cloud workloads.
Detailed technical explanation
How to think about this question
Under the hood, Microsoft Defender for Cloud integrates with Azure Arc to extend security policies and threat detection to on-premises servers and other clouds, using the Log Analytics agent or Azure Monitor Agent to collect security events. Microsoft Sentinel acts as a SIEM/SOAR, ingesting logs from multiple sources via connectors (e.g., Syslog, CEF, AWS CloudTrail) and applying analytics rules for correlation. Microsoft Defender for Identity uses on-premises Active Directory signals, such as Kerberos authentication and NTLM relay attempts, to detect lateral movement and privilege escalation, then feeds alerts to Microsoft 365 Defender and Sentinel for unified 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 media company stores terabytes of video archives that are accessed once a year for audit purposes. Moving these objects to a cold storage tier (Azure Archive, S3 Glacier, or Google Nearline) costs a fraction of hot storage. Questions like this test whether you understand storage tiers, access frequency tradeoffs, and retrieval latency requirements.
Related glossary terms
Concepts from this question explained
These glossary pages explain the core terms tested in this SC-100 question in full detail.
Design solutions that align with security best practices and priorities — This question tests Design solutions that align with security best practices and priorities — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Microsoft Defender for Cloud — Microsoft Defender for Cloud is correct because it provides unified security management and threat protection across hybrid cloud workloads, including Azure, on-premises, and other cloud platforms like AWS and GCP. It uses integrated vulnerability assessment, just-in-time access, and adaptive application controls to detect and respond to threats in real time, leveraging Microsoft Defender plans for servers, SQL, storage, and containers.
What should I do if I get this SC-100 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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Question Discussion
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