What port is primarily used for access to the Tableau Web application?

The primary port used for access to the Tableau Web application is 80 for HTTP and 443 for HTTPS. Since the question specifically refers to secure web access, option 443 is the correct choice. Port 443 is the standard port designated for HTTPS traffic, which encrypts data for secure transmission over the internet. Using this port ensures that interactions with the Tableau Web application are secure, protecting sensitive data.

The alternatives mentioned do not serve the same purpose. Port 8000 is typically used by Tableau Server to communicate within the server, while port 27000 is the default port used for Tableau's licensing process. Port 8080 can be used for other web applications but is not the default port for Tableau Web access.

Understanding these port mappings is crucial for setting up and configuring Tableau Server correctly in a production environment, ensuring that data visualization tools are accessible securely to users.