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 Cost Optimization

Strategies and practices to reduce and control cloud computing expenses while maintaining performance and availability.

Elastic Load Balancing

An AWS service that automatically distributes incoming application traffic across multiple targets like EC2 instances and containers.

Cloud Computing

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

IaaS (Infrastructure as a Service)

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

Cloud Migration

The process of moving applications, data, and workloads from on-premises infrastructure to cloud computing environments.

Serverless Computing

A cloud execution model where the provider manages servers and dynamically allocates resources, charging only for actual usage.

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