AZ-204 Certification Practice Question #80

Question

You are developing an Azure Function app for scalability and integration with Azure Blob Storage.

You must run the code in an Azure production environment that allows the function to scale based on demand, providing instance size selection and higher concurrency control.

The function must connect to other Azure services secured inside a virtual network, scale to zero instances when there are no incoming events and minimize costs.

You need to select a hosting plan to meet the requirement.

Which plan should you use?

Accepted Answer

The **Flex Consumption** hosting plan is the only Azure Functions plan that meets all requirements: it supports outbound virtual network (VNet) integration, scales to zero instances when idle (unlike the Premium plan, which requires at least one pre-warmed instance), supports custom instance memory size selection, provides advanced concurrency controls, and minimizes costs by billing only for actual resource consumption.

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