[arch-general] Configure / Set a Hostname

I have read on Google searches and on all over so many different ways to properly set a FQDN on Arch Linux and am more confused than I was before I started looking this up. I don't ever get prompted during the Arch installer to enter a 'hostname' but rather do so in /etc/rc.conf which appears to make no difference because it's superseded by /etc/hosts. Can someone tell me if I want my Arch machine called "bishop.mydomain.tld", how does one properly and officially achieve this task in Arch? Thanks!