AZ-204 Certification Practice Question #48

Question

You are developing an Azure Function App that processes images that are uploaded to an Azure Blob container.
Images must be processed as quickly as possible after they are uploaded, and the solution must minimize latency. You create code to process images when the
Function App is triggered.
You need to configure the Function App.
What should you do?

Accepted Answer

To process images as quickly as possible and minimize latency after upload, the Function App should run in an **App Service plan** (with **Always On** enabled) rather than a Consumption plan. In the Consumption plan, if a Function App goes idle (scales down to zero), there can be up to a 10-minute delay in detecting and processing new blobs because of polling behavior. Furthermore, the correct trigger type is the **Azure Blob Storage trigger** (options A and E incorrectly refer to a non-existent "input trigger").

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