Final answer:
Amazon DynamoDB is a NoSQL DBMS designed by Amazon to address the scalability and performance limitations of traditional relational databases. It features a flexible schema-less design, automated multiregion replication, and is suited for large-scale applications demanding high throughput.
Step-by-step explanation:
Amazon DynamoDB is a NoSQL DBMS developed by Amazon to overcome the limitations of a traditional relational DBMS. DynamoDB was designed to provide low-latency performance at internet scale, making it an ideal choice for large applications that require high throughput and flexible data models.
Unlike traditional relational databases that use fixed schema and table joins, DynamoDB uses a schema-less design where each item can have any number of attributes. This makes it suitable for storing and retrieving any amount of data, with any type of structure, allowing developers to efficiently handle large-scale, unstructured, or semi-structured data.
DynamoDB also offers features such as automated multiregion replication, on-demand backup and restore, and in-memory caching with DynamoDB Accelerator (DAX). Furthermore, as a fully managed service, it reduces the operational load of running and scaling a distributed database. Thus, DynamoDB is widely used in scenarios where scalability, performance, and reliability are critical.