Step Functions for workflows in AWS - Cheat Sheet & Quick Revision

Recall & Review

beginner

What is AWS Step Functions?

AWS Step Functions is a service that helps you coordinate multiple tasks into a workflow. It makes sure each step happens in order and handles errors automatically.

beginner

What is a state in Step Functions?

A state is a single step in a workflow. It can do things like run a task, wait, choose between paths, or end the workflow.

intermediate

How does Step Functions handle errors in workflows?

Step Functions can catch errors and retry steps or move to a different path. This helps workflows keep running smoothly even if something goes wrong.

intermediate

What is the difference between a Task state and a Choice state?

A Task state runs a job like calling a Lambda function. A Choice state decides which path to take next based on conditions.

beginner

Why use Step Functions instead of writing code to manage workflows?

Step Functions makes workflows visual and easier to manage. It handles retries, errors, and state tracking automatically, saving time and reducing mistakes.

What does a Task state in Step Functions do?

A Runs a job like a Lambda function

B Makes a decision between paths

C Waits for a set time

D Ends the workflow

A Task state runs a job such as invoking a Lambda function or other AWS service.

Which state type lets you choose the next step based on conditions?

A Task

B Wait

C Choice

D Pass

Choice states evaluate conditions and decide which path to follow next.

How does Step Functions help with errors in workflows?

A It retries or routes to error handling steps

B It sends an email only

C It ignores errors

D It stops the workflow immediately

Step Functions can retry failed steps or move to error handling states to keep workflows running.

What is the main benefit of using Step Functions?

A Writing complex code for workflows

B Visualizing and managing workflows easily

C Replacing all AWS services

D Storing large files

Step Functions provides a visual way to build and manage workflows, simplifying orchestration.

Which state type pauses the workflow for a set time?

A Fail

B Task

C Choice

D Wait

Wait states pause the workflow for a specified duration or until a time.

Explain how AWS Step Functions help manage complex workflows.

Think about how Step Functions make many steps work together smoothly.

Describe the role of different state types in Step Functions workflows.

Consider what each step in a workflow can do.