Which processes, when installed, will also typically include an installation of Data Engine unless it already exists?

The correct choice involves the Backgrounder, VizQL Server, and Data Server. When these components are installed on a Tableau Server, they often require the installation of the Data Engine if it is not already in place. The Data Engine, also known as Hyper, serves as an in-memory database that allows these components to efficiently handle query processing and data storage.

The Backgrounder is responsible for running tasks such as extract refreshes and subscription deliveries, which typically benefit from the high-performance data handling offered by the Data Engine. The VizQL Server generates visualizations and dashboards based on data, making it essential for it to have an efficient data processing backend like the Data Engine. The Data Server handles data connections and management, which also benefits from the processing capabilities of the Data Engine.

Together, these components enhance the overall performance of Tableau Server, particularly for data-intensive operations. The need for a Data Engine arises naturally as these components depend on it to function optimally, ensuring robust and responsive data interactions.

While other combinations of components may include data management functionalities, they do not typically necessitate a Data Engine installation when they are set up, making them less relevant in this context.