What is Amazon DynamoDB?

Amazon DynamoDB is a fully managed NoSQL database service offered by AWS that provides fast and predictable performance with seamless scalability. It allows users to store and retrieve any amount of data and serves high request rates without the need to manage servers or infrastructure. DynamoDB supports both key-value and document data structures, making it suitable for a wide range of applications, including web, mobile, gaming, and IoT. It also offers features such as built-in security, backup and restore, and in-memory caching.