When installing Tableau Server in an air-gapped environment, which of the following steps is essential...

Using a physical medium to transfer the Tableau Server installation files to the environment In an air-gapped environment, where there is no direct internet connection, using a physical medium (like a USB drive or external hard disk) to transfer the Tableau Server installation files is essential. This method ensures that the necessary software can be securely introduced into the isolated environment for installation. Option A is incorrect because direct internet access is typically not possible or allowed in an air-gapped environment. Option C is incorrect as a proxy server implies some level of external network access, which is not available in an air-gapped setup. Option D is incorrect because implementing a VPN is not feasible in a truly air-gapped environment where no external network connections are allowed.