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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A formal agreement between a service provider and customer defining guaranteed levels of service availability and performance.

An AWS service that provisions and manages cloud resources using declarative JSON or YAML templates.

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

Kubernetes Namespace

A virtual cluster within a Kubernetes cluster that provides scope for names and enables resource isolation between teams or environments.

A serverless compute service that runs code in response to events without requiring server management or infrastructure provisioning.

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

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