Quick Answer
The answer is Microsoft Defender for Cloud. This is the correct choice because it integrates directly with Azure Container Registry to scan container images for vulnerabilities as part of a DevOps pipeline, using the Qualys scanner to detect CVEs on image push or on demand, enabling you to block vulnerable images before production deployment. On the Microsoft Cybersecurity Architect exam, this question tests your understanding of how Defender for Cloud’s workload protection plans extend into CI/CD workflows, often appearing as a scenario where you must choose between Defender for Cloud, Azure Policy, or Azure Security Center—a common trap is confusing Azure Security Center’s legacy role with Defender for Cloud’s unified, pipeline-ready scanning. Remember the memory tip: “Defender for Cloud defends the container before it’s deployed,” linking the service name directly to its pre-deployment vulnerability scanning function in Azure DevOps.
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.
Your organization is implementing a secure DevOps pipeline for a critical application. You need to design a solution that scans container images for vulnerabilities before they are deployed to production. Which Azure service should you integrate into the pipeline?
Azure Key Vault
Why wrong: Key Vault securely stores secrets, not scanning.
Azure Policy
Why wrong: Azure Policy enforces rules but does not scan for vulnerabilities.
Microsoft Defender for Cloud
Defender for Cloud provides vulnerability scanning for container images in ACR.
Azure Security Center
Why wrong: Azure Security Center is now integrated into Microsoft Defender for Cloud.
Answer choices
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 (formerly Azure Security Center) provides integrated vulnerability assessment for container images stored in Azure Container Registry (ACR). When integrated into a DevOps pipeline, Defender for Cloud can scan images on push or on demand, using the Qualys scanner to detect CVEs and generate detailed security reports. This allows the pipeline to block or flag vulnerable images before they reach production, directly addressing the requirement for pre-deployment vulnerability scanning.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
For each option: why learners choose it and why it is or isn't the right answer here.
Azure Key Vault
Why it's wrong here
Key Vault securely stores secrets, not scanning.
Azure Policy
Why it's wrong here
Azure Policy enforces rules but does not scan for vulnerabilities.
Microsoft Defender for Cloud
Why this is correct
Defender for Cloud provides vulnerability scanning for container images in ACR.
Related concept
Read the scenario before looking for a memorised answer.
Azure Security Center
Why it's wrong here
Azure Security Center is now integrated into Microsoft Defender for Cloud.
Common exam traps
The trap here is that candidates may confuse the old name 'Azure Security Center' with the current service 'Microsoft Defender for Cloud', or assume that Azure Policy can perform vulnerability scanning when it only enforces configuration compliance, not image-level security analysis.
Detailed technical explanation
Defender for Cloud's vulnerability assessment for ACR uses the Qualys agentless scanner, which extracts the image layers and compares the installed package versions against the National Vulnerability Database (NVD). The scan results are surfaced as security recommendations (e.g., 'Container images in ACR should have vulnerability findings resolved'), and the pipeline can use the Azure CLI command 'az acr task run' with the '--scan' flag or the Defender for Cloud REST API to query findings and enforce gating. In a real-world scenario, a pipeline might fail the build if any critical or high-severity CVE is detected, preventing the image from being deployed to Kubernetes clusters.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
A cloud solutions architect for a retail company is evaluating services for a new workload. The correct answer here reflects best practice for the specific scenario described — not a general cloud recommendation. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Cloud exam questions reward reading the constraint carefully: the same technology can be right or wrong depending on the use case.
What to study next
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FAQ
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..
The correct answer is: Microsoft Defender for Cloud — Microsoft Defender for Cloud (formerly Azure Security Center) provides integrated vulnerability assessment for container images stored in Azure Container Registry (ACR). When integrated into a DevOps pipeline, Defender for Cloud can scan images on push or on demand, using the Qualys scanner to detect CVEs and generate detailed security reports. This allows the pipeline to block or flag vulnerable images before they reach production, directly addressing the requirement for pre-deployment vulnerability scanning.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Read the scenario before looking for a memorised answer.
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Last reviewed: Jun 24, 2026
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