You are building a Docker image in Azure Pipelines. You want to ensure the image is automatically pushed to Azure Container Registry (ACR), and you want ACR to automatically build and patch the image whenever the base OS image (e.g., Ubuntu) is updated in the public Docker Hub registry. Which feature achieves this?

Direct Answer (Verified)Reviewed by Sunny (Senior Cloud Engineer)

Correct Answer: ACR Tasks (Base image update triggers)

ACR Tasks supports automated container image builds in the cloud. You can configure a base image update trigger. When the base image (like Alpine, Ubuntu, or Node) is updated in it...

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Real Exam ScenarioContainer DevOps

You are building a Docker image in Azure Pipelines. You want to ensure the image is automatically pushed to Azure Container Registry (ACR), and you want ACR to automatically build and patch the image whenever the base OS image (e.g., Ubuntu) is updated in the public Docker Hub registry. Which feature achieves this?

✓ Correct Answer & ExplanationContainer DevOps

Correct Answer

ACR Tasks (Base image update triggers)

Why This Answer Is Correct

ACR Tasks supports automated container image builds in the cloud. You can configure a base image update trigger. When the base image (like Alpine, Ubuntu, or Node) is updated in its upstream registry, ACR Tasks automatically triggers a rebuild of your application image to ensure it includes the latest OS-level security patches.

📚 What This Question Tests

This question evaluates your knowledge of Container DevOps — a core concept tested in Microsoft Certified: DevOps Engineer Expert (AZ-400). Understanding Container DevOps is essential for designing scalable, secure, and cost-effective cloud architectures. Mastery of this topic will help you answer scenario-based questions confidently on exam day.

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More Container DevOps Practice Questions

You are modernizing an application to run in Azure Kubernetes Service (AKS). Developers use Windows 10 laptops. They want to write code, test it in a local container, and debug it as if it were running natively on their machines, without having to build and push the container image to ACR for every code change. Which tool should they use?

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