Editing AWS Lambda (section)

== Remembering (Knowledge / Recall) ==
🧠 At this level, an expert can **define** AWS Lambda and **name** its core components, terminology, and usage contexts.

* '''Core terminology & definitions'''
** '''[https://en.wikipedia.org/wiki/AWS_Lambda AWS Lambda]''' – Amazon Web Services’ serverless compute platform that executes functions in response to events.
** '''[https://en.wikipedia.org/wiki/Serverless_computing Serverless computing]''' – A cloud execution model where infrastructure, scaling, and capacity are fully managed by the provider.
** '''[https://en.wikipedia.org/wiki/Function_as_a_Service Function-as-a-Service (FaaS)]''' – A cloud model where applications run as stateless functions invoked on demand.
** '''[https://en.wikipedia.org/wiki/Event-driven_programming Event-driven programming]''' – A programming paradigm in which execution is triggered by external events.
** '''[https://en.wikipedia.org/wiki/Amazon_Web_Services Amazon Web Services (AWS)]''' – The cloud platform that provides Lambda and related services.

* '''Key components & services involved'''
** '''[https://en.wikipedia.org/wiki/Amazon_S3 Amazon S3]''' – Can trigger Lambda functions on object events.
** '''[https://en.wikipedia.org/wiki/Amazon_DynamoDB Amazon DynamoDB]''' – Can invoke Lambda on table streams.
** '''[https://en.wikipedia.org/wiki/Amazon_API_Gateway Amazon API Gateway]''' – Routes API requests to Lambda.
** '''[https://en.wikipedia.org/wiki/Amazon_CloudWatch Amazon CloudWatch]''' – Stores logs and metrics for Lambda.

* '''Canonical tools & frameworks'''
** '''[https://en.wikipedia.org/wiki/AWS_CloudFormation AWS CloudFormation]''' – Infrastructure-as-code deployment.
** '''[https://en.wikipedia.org/wiki/Amazon_Web_Services#Developer_tools AWS CLI / SDKs]''' – Programmatic Lambda management.
** '''[https://en.wikipedia.org/wiki/Integrated_development_environment IDEs]''' – Used to write, package, and test Lambda code.
** '''[https://en.wikipedia.org/wiki/Continuous_delivery CI/CD pipelines]''' – Commonly automate Lambda deployments.

* '''Where AWS Lambda is commonly used'''
** Serverless APIs, microservices, backend automation
** Data processing pipelines and batch jobs
** Real-time file, stream, or database event handling
** Cloud automation and DevOps workflows

* '''Typical recall-level facts'''
** Introduced by AWS in **2014**.
** Supports multiple languages (e.g., Python, Node.js, Java, Go).
** Billed based on requests and execution duration.
** Functions run in short-lived, stateless execution environments.

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