A fully managed service for creating, publishing, maintaining, and securing REST, HTTP, and WebSocket APIs. It integrates natively with Lambda to build serverless APIs without managing servers.
The standard frontend for serverless architectures on SAA-C03: API Gateway → Lambda → DynamoDB. It handles authentication, throttling, caching, and API versioning. Question: expose a Lambda function as an HTTP endpoint → API Gateway.
Amazon API Gateway is a concept that can show up on the exam. Check the full guide to see it in context.