What is the primary capability of AWS Datasync?

The primary capability of AWS DataSync is to facilitate data transfer between on-premises storage and AWS services, which is precisely why the chosen answer stands out. AWS DataSync automates the process of moving large amounts of data quickly and securely, making it suitable for scenarios like migrating active data to AWS or syncing data for cloud-based applications. This service supports transferring data between on-premises storage systems and various AWS storage services, such as Amazon S3 and Amazon EFS, streamlining workflows that involve hybrid environments.

The other options do not align with AWS DataSync's core functionality. For instance, real-time data processing pertains to services designed to analyze data streams on the fly, while data visualization for analytics relates to services that help represent data graphically. Infrastructure management involves the oversight and administration of cloud resources, which is a broader topic that covers various AWS management tools, but is not specific to DataSync's primary function. Therefore, focusing on the data transfer capabilities of AWS DataSync provides a clear understanding of its main purpose in the AWS ecosystem.