What is the main feature of Delta Sharing?

The main feature of Delta Sharing is that it is a multicloud, open-source solution designed for sharing live data. This capability allows organizations to share data quickly and seamlessly across different cloud environments while ensuring that it remains in real-time and accessible. By leveraging an open-source framework, Delta Sharing fosters interoperability, allowing users from different platforms and providers to access data without being locked into a single vendor's ecosystem.

This multicloud approach is particularly advantageous for businesses that operate in diverse environments, as it provides flexibility and scalability. It promotes collaboration by enabling different parties to access up-to-date data shared securely, making it easier to work together on analytics, machine learning models, or any data-driven projects.

The other options either suggest limited functionality or a focus that doesn't align with the core principles of Delta Sharing. A closed-source solution would restrict access and collaboration, while a tool specific to Databricks for internal use would limit its applicability across different organizations and environments. Lastly, a method for sharing data without security measures would jeopardize data integrity and confidentiality, which is contrary to the goals of Delta Sharing.