What does the AWS Glue Data Catalog primarily do?

The AWS Glue Data Catalog is designed to store metadata, which includes information about data sources, schema, and associated data classifications. This metadata allows users to discover and manage their data more effectively. By providing a centralized repository for metadata, the Data Catalog enables data discovery, making it easier for users to search for and access the needed data across various data lakes, warehouses, and databases. This function is crucial for organizations managing large volumes of data from different sources, as it streamlines the process of finding and utilizing data for analytics and reporting.

The other options do not accurately describe the primary function of the AWS Glue Data Catalog. While it does not store application logs, process streaming data, or manage user permissions directly, these tasks might be handled by other services within the AWS ecosystem, like CloudWatch for logs or IAM for user permissions. However, the distinguishing feature of the Glue Data Catalog is its role in managing metadata for efficient data discovery and integration.