First, I don't know the answer specifically.

Some ruminations.  SQL Server has the ability to communicate (send/receive data) via serveral communications links.  I.e.  TCP/Ip, Named pipes, etc.

For a given server, you...

Appreciate you sharing your research and time on this topic.  I believe the following are true.

a.  Tempdb is created from Model DB when SQL Server is started

b.  That user procedures,...