This CV0-004 practice question tests your understanding of deployment. 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 is deploying a containerized microservices architecture on Azure Kubernetes Service (AKS). The security team requires that all container images are scanned for vulnerabilities before deployment. Which deployment approach should the DevOps team implement to ensure only approved images are used?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Enable Azure Container Registry tasks for automatic vulnerability scanning and enforce with Azure Policy.
Option C is correct because Azure Container Registry (ACR) Tasks can automatically scan images for vulnerabilities using Microsoft Defender for Cloud, and Azure Policy can enforce that only images from approved registries or with passing scan results are deployed to AKS. This ensures that all container images are scanned before deployment and that only compliant images are used, meeting the security team's requirement.
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.
✗
Store all images in a private registry without any scanning.
Why it's wrong here
No vulnerability assessment.
✗
Use Docker Content Trust to sign images and verify signatures during deployment.
Why it's wrong here
Signing ensures integrity but not vulnerability scanning.
✓
Enable Azure Container Registry tasks for automatic vulnerability scanning and enforce with Azure Policy.
Why this is correct
ACR tasks scan images and Azure Policy can deny non-compliant deployments.
Related concept
Read the scenario before looking for a memorised answer.
✗
Deploy an admission controller that checks image signatures only.
Why it's wrong here
Missing vulnerability scanning.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often confuse image signing (e.g., Docker Content Trust or Notary) with vulnerability scanning, assuming that signing alone ensures security, but signing only verifies image origin and integrity, not the presence of vulnerabilities.
Detailed technical explanation
How to think about this question
Under the hood, ACR Tasks integrate with Microsoft Defender for Cloud to perform vulnerability scanning using the Qualys scanner, which checks images against the National Vulnerability Database (NVD). Azure Policy for AKS uses the 'Azure Policy for Kubernetes' add-on to enforce constraints like 'AllowedContainerImages' or custom policies that require images to have passed a scan, blocking deployments that do not meet the criteria. In a real-world scenario, this approach is critical for compliance with standards like PCI DSS or SOC 2, where continuous vulnerability scanning and enforcement are mandatory.
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 small business has 20 workstations on the 192.168.1.0/24 network and one public IP from its ISP. The router uses PAT (NAT overload) so all 20 devices share one public address using different source ports. NAT questions test whether you understand the four address terms and which direction each translation applies.
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.
Deployment — This question tests Deployment — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Enable Azure Container Registry tasks for automatic vulnerability scanning and enforce with Azure Policy. — Option C is correct because Azure Container Registry (ACR) Tasks can automatically scan images for vulnerabilities using Microsoft Defender for Cloud, and Azure Policy can enforce that only images from approved registries or with passing scan results are deployed to AKS. This ensures that all container images are scanned before deployment and that only compliant images are used, meeting the security team's requirement.
What should I do if I get this CV0-004 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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