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

The smallest deployable unit in Kubernetes, consisting of one or more containers that share storage, network, and lifecycle.

SaaS (Software as a Service)

A cloud delivery model where software applications are hosted and managed by a provider and accessed by users over the internet.

Serverless Computing

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

A storage architecture that manages data as objects with metadata and unique identifiers, ideal for unstructured data at scale.

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

Kubernetes Service

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

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