Community Q&A
AZ-400 — frequently asked questions
Community-vetted answers to 3 common questions about this exam, each traced back to a specific practice question.
Questions from real practice questions
Each Q&A comes from a specific question — follow the link for the full analysisWhich agent pool builds an IIS Docker app in Azure Pipelines
Why can't a standard hosted Windows agent build an IIS Docker image?
Standard hosted Windows agents build Linux containers; the Windows Containers feature needed for an IIS image is only preconfigured in the Hosted Windows Container pool (or a self-hosted agent you configure yourself).
Is the Default pool ever acceptable for this build?
Only if a self-hosted agent in the Default pool has Docker enabled for Windows containers and the required build tools. By default it does not, so the statement as written is inaccurate.
Why is Hosted macOS not an option?
macOS hosted agents do not support running or building Docker containers, and IIS cannot run on macOS at all.
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