What type of service is Amazon DynamoDB Encryption?

Amazon DynamoDB Encryption is a data encryption feature that secures data stored within the DynamoDB database service. Its primary function is to automatically encrypt your data at rest, thereby ensuring that sensitive information is protected from unauthorized access. This feature allows users to focus on other aspects of their application without having to implement their own encryption processes.

While the other options refer to different categories of tools and services, the focus on encryption specifically aligns with the concept of it being a software library designed for security purposes. In this context, it enhances the security of the data without being categorized as a general-purpose data storage service, a network security tool, or a database query language. Understanding this distinction is crucial in identifying how security and encryption play a role in database management and application development.