Which functionality does not need to be installed separately in Tableau Server during the setup process?

Tableau Server itself is the core application that is installed as part of the setup process. When you run the installer for Tableau Server, it includes all the essential components required to operate the server environment. This means you do not need to install it separately, as it is packaged with the installation process.

In contrast, Tableau Desktop is a separate application that requires its own installation for users to create and publish dashboards. Similarly, PostgreSQL drivers must also be installed separately to enable connections to PostgreSQL databases. The local identity store component, while part of the Tableau Server configuration, often requires its own setup configuration but is not installed as a standalone product. Therefore, the correct answer highlights that Tableau Server is integral to the setup and does not require a separate installation.