On which processes should database drivers be installed in a Tableau Server environment?

Database drivers are essential in a Tableau Server environment as they facilitate the connection between Tableau and various database systems for data extraction and visualization. When considering which processes require the installation of database drivers, it's important to recognize the roles of different server components.

The Application Server provides the web service interface for Tableau Server but does not directly interact with external databases. The Backgrounder is responsible for running scheduled tasks, including Tableau Extract refreshes and subscriptions. For these tasks to function correctly, they need to connect to the data sources specified in the extracts.

The Data Server manages published data sources, while the VizQL Server generates the visualizations based on user queries. Both of these components interact directly with data sources; therefore, they require the relevant database drivers to ensure successful data access.

Installing database drivers on the Application Server, Backgrounder, Data Server, and VizQL Server ensures that all key components involved in data processing and visualization can communicate with the necessary databases. This comprehensive approach guarantees that the entire Tableau Server environment functions optimally, allowing for seamless data handling and reporting.

In summary, the correct choice highlights the necessity of installing database drivers across the components that directly interact with databases—enabling effective data connectivity and processing for the overall system.