The answer is Microsoft Defender for Cloud. This is the correct choice because Defender for Cloud provides integrated vulnerability assessment for container images stored in Azure Container Registry, automatically scanning each new image pushed to the registry using the Qualys scanner or Microsoft’s own threat intelligence, then generating actionable remediation recommendations. On the SC-900 exam, this scenario tests your understanding of how Defender for Cloud’s cloud workload protection extends to containerized environments like AKS, often appearing as a distractor against Azure Policy or Azure Security Center—remember that Defender for Cloud is the unified solution for vulnerability scanning and remediation guidance, not just policy enforcement. A common trap is confusing Azure Container Registry’s built-in tasks with scanning; however, only Defender for Cloud offers automated, continuous vulnerability assessment with remediation recommendations. Memory tip: think “Defender scans containers on push” to recall that the scanning trigger is the push event, not a scheduled task.
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 company runs containerized applications on Azure Kubernetes Service (AKS) and stores container images in Azure Container Registry. The security team wants to automatically scan container images for vulnerabilities every time a new image is pushed to the registry and receive recommendations for remediation. Which Microsoft security solution should they enable?
Why wrong: Defender for Endpoint provides endpoint detection and response (EDR) for devices, not for scanning container images in a registry.
B
B. Microsoft Defender for Identity
Why wrong: Defender for Identity monitors on-premises Active Directory for advanced attacks, not container image vulnerability scanning.
C
C. Microsoft Defender for Cloud
Defender for Cloud includes the Defender for Container Registries plan that automatically scans images for vulnerabilities and provides remediation recommendations.
D
D. Microsoft Defender for Office 365
Why wrong: Defender for Office 365 protects email and collaboration tools like SharePoint and Teams, not container environments.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
C. Microsoft Defender for Cloud
Microsoft Defender for Cloud provides integrated vulnerability assessment for container images stored in Azure Container Registry. When enabled, it automatically scans each new image pushed to the registry, identifies known vulnerabilities (using the Qualys scanner or Microsoft's own threat intelligence), and generates actionable remediation recommendations. This directly meets the security team's requirement for automated scanning and remediation guidance.
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.
✗
A. Microsoft Defender for Endpoint
Why it's wrong here
Defender for Endpoint provides endpoint detection and response (EDR) for devices, not for scanning container images in a registry.
✗
B. Microsoft Defender for Identity
Why it's wrong here
Defender for Identity monitors on-premises Active Directory for advanced attacks, not container image vulnerability scanning.
✓
C. Microsoft Defender for Cloud
Why this is correct
Defender for Cloud includes the Defender for Container Registries plan that automatically scans images for vulnerabilities and provides remediation recommendations.
Related concept
Read the scenario before looking for a memorised answer.
✗
D. Microsoft Defender for Office 365
Why it's wrong here
Defender for Office 365 protects email and collaboration tools like SharePoint and Teams, not container environments.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates confuse 'Defender for Cloud' (which covers workload protection including containers) with 'Defender for Endpoint' (which is device-focused), leading them to incorrectly select A because they think container scanning is an endpoint function.
Detailed technical explanation
How to think about this question
Under the hood, Defender for Cloud's vulnerability assessment for ACR uses a built-in Qualys scanner agentlessly—it pulls the image manifest and layers, then compares the software inventory against CVE databases. The scan occurs asynchronously after the push completes, and results are surfaced in the Defender for Cloud dashboard under 'Recommendations' (e.g., 'Container images should be scanned for vulnerabilities'). In a real-world CI/CD pipeline, this integrates with Azure DevOps or GitHub Actions to block vulnerable images from being deployed to AKS.
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: C. Microsoft Defender for Cloud — Microsoft Defender for Cloud provides integrated vulnerability assessment for container images stored in Azure Container Registry. When enabled, it automatically scans each new image pushed to the registry, identifies known vulnerabilities (using the Qualys scanner or Microsoft's own threat intelligence), and generates actionable remediation recommendations. This directly meets the security team's requirement for automated scanning and remediation guidance.
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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Question Discussion
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