Cloud Computing Intermediate

What is Lambda Function (Cloud)?

An AWS serverless compute service that runs code in response to events without provisioning or managing servers.

AWS Lambda executes functions triggered by events: API Gateway requests, S3 uploads, DynamoDB changes, SQS messages, scheduled events, and more. You pay only for execution time (billed per millisecond) with no idle costs.

Functions have memory (128MB-10GB), timeout (up to 15 minutes), and concurrent execution limits. Cold starts (first invocation delay) can be mitigated with provisioned concurrency. Lambda supports Python, Node.js, Java, Go, Ruby, .NET, and custom runtimes via containers.

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Related Terms

Cloud Computing

The delivery of computing services over the internet, including servers, storage, databases, and software on demand.

Cloud Monitoring

Services that collect, analyze, and alert on metrics, logs, and traces from cloud infrastructure and applications.

A strategy of using services from multiple cloud providers to avoid vendor lock-in and leverage best-of-breed capabilities.

Kubernetes Service

An abstraction that provides a stable network endpoint for accessing a group of Pods, handling load balancing and service discovery.

Automatically adjusting the number of computing resources based on current demand to maintain performance and optimize costs.

S3 (Simple Storage Service)

An AWS object storage service that stores and retrieves any amount of data from anywhere on the web.

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