Functions with HTTP triggers in Azure - Cheat Sheet & Quick Revision

Recall & Review

beginner

What is an HTTP trigger in Azure Functions?

An HTTP trigger starts an Azure Function when it receives an HTTP request, like when you open a webpage or call an API.

beginner

How does an Azure Function respond to an HTTP trigger?

It processes the request and sends back a response, such as data or a status message, just like a web server replying to a browser.

intermediate

What HTTP methods can trigger an Azure Function?

Common methods include GET (to get data), POST (to send data), PUT, DELETE, and others, depending on what the function is set to accept.

intermediate

Why use HTTP triggers in serverless functions?

They let you run code only when needed, saving resources and costs, and make it easy to build APIs or webhooks without managing servers.

advanced

How do you secure an Azure Function with an HTTP trigger?

You can use keys, tokens, or Azure Active Directory to control who can call the function, protecting it from unwanted access.

What happens when an HTTP request triggers an Azure Function?

A The function shuts down

B The function sends an email

C The function runs and returns a response

D The function creates a virtual machine

An HTTP trigger causes the function to run and respond to the request.

Which HTTP method is commonly used to retrieve data from an Azure Function?

A GET

B POST

C DELETE

D PUT

GET is used to request data without changing anything.

How can you restrict access to an HTTP-triggered Azure Function?

A By deleting the function

B By turning off the function

C By changing the function name

D By using function keys or authentication tokens

Function keys and tokens control who can call the function.

What is a benefit of using HTTP triggers in serverless functions?

A They require manual server management

B They run code only when needed, saving costs

C They always run continuously

D They cannot respond to web requests

HTTP triggers run functions on demand, which saves resources and money.

Which of these is NOT a typical HTTP method for Azure Functions?

A CONNECT

B POST

C GET

D DELETE

CONNECT is rarely used in Azure Functions; GET, POST, and DELETE are common.

Explain how an HTTP trigger works in Azure Functions and why it is useful.

Think about how a website or app calls a function to get or send data.

Describe methods to secure an Azure Function that uses an HTTP trigger.

Consider how you keep a door locked so only certain people can enter.