It’s recursive so it’s more like gnugnugnugnugnugnugnugnugnugnugnugnugnugnugnugnugnugnugnugnugnugnugnugnugnugnugnugnugnugnugnugnugnugnugnugnugnugnugnugnu…

TCP/IP is also the name of a model different from OSI. It has 4 layers instead of 7: https://www.hostwinds.com/blog/osi-vs-tcpip-differences-and-similarities

In other breaking news, snow is in fact white!

As someone who does systems administration which includes numerous government owned database servers, this is news to me.