What is Amazon DynamoDB?

Amazon DynamoDB is a fully managed NoSQL database service that provides fast and predictable performance with seamless scalability. It supports both key-value and document data models and can handle more than 10 trillion requests per day. DynamoDB offers built-in security, backup and restore, and in-memory caching. It provides single-digit millisecond latency at any scale and supports global tables for multi-region, active-active deployments. DynamoDB automatically scales tables up or down to adjust for capacity and maintains consistent performance. It also supports DynamoDB Streams for capturing table activity and triggering actions.