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AZ-204 · Question #253

Drag and Drop Question You are developing an Azure Function app. The app must meet the following requirements: - Enable developers to write the functions by using the Rust language. - Declaratively…

The correct answer is Custom handler; Trigger. A Custom Handler is used to support languages not natively supported by Azure Functions (like Rust, Go, or any other language) by allowing the function host to communicate with an external process via HTTP. For declaratively connecting to Azure Blob Storage, a Trigger…

Submitted by packet_pusher· Mar 30, 2026Implement Azure Functions - specifically configuring custom handlers for unsupported languages and using triggers/bindings for declarative service integration (AZ-204: Develop Azure compute solutions)

Question

Drag and Drop Question You are developing an Azure Function app. The app must meet the following requirements: - Enable developers to write the functions by using the Rust language. - Declaratively connect to an Azure Blob Storage account. You need to implement the app. Which Azure Function app features should you use? To answer, drag the appropriate features to the correct requirements. Each feature may be used once, more than once, or not at all. You may need to drag the split bar between panes or scroll to view content. NOTE: Each correct selection is worth one point. Answer:

Exhibit

AZ-204 question #253 exhibit

Answer Area

Drag items

Custom handlerExtension bundleTriggerRuntimePolicyHosting plan

Correct arrangement

  • Custom handler
  • Trigger

Explanation

A Custom Handler is used to support languages not natively supported by Azure Functions (like Rust, Go, or any other language) by allowing the function host to communicate with an external process via HTTP. For declaratively connecting to Azure Blob Storage, a Trigger (specifically a Blob Storage trigger) or Binding is used - in this context 'Trigger' represents the declarative connectivity mechanism that binds the function to Azure Blob Storage without writing explicit connection code. These two features together satisfy both requirements: custom language support and declarative storage connectivity.

Topics

#Azure Functions#Custom Handlers#Blob Storage Bindings#Serverless Development

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