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

S3 (Simple Storage Service)

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

AWS (Amazon Web Services)

The world's largest cloud computing platform, offering hundreds of services for compute, storage, networking, and more.

Cloud Monitoring

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

IaaS (Infrastructure as a Service)

A cloud service model providing virtualized computing resources like servers, storage, and networking over the internet.

Region and Availability Zone

Geographic locations where cloud providers operate data centers, with zones providing redundancy within a region.

A computing environment that combines on-premises infrastructure with public cloud services, allowing data and applications to move between them.

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