Bedrock

Amazon Bedrock is a fully managed, serverless service giving developers single-API access to a curated catalog of foundation models from AWS and third parties like Anthropic, Meta, and Mistral — no infrastructure or training required. It’s the exam’s go-to answer for the fastest, lowest-operational-overhead path to generative AI on AWS, since you switch providers by changing one API call. Know its build-on-top features: Knowledge Bases (managed RAG grounding on private data), Agents (multi-step task automation with tool calls), and Guardrails (content filtering and safety). Don’t confuse it with SageMaker, which trains, fine-tunes, and hosts custom models.