I don't have a specific URL for you (other than for the authoritative source, the DNS RFCs) but a good example would be how clients in an Active Directory envir

I don't have a specific URL for you (other than for the authoritative source, the DNS RFCs) but a good example would be how clients in an Active Directory environment find a Domain Controller to log on to -- I'm sure there's plenty of documentation and examples of that on the web! Hint: This same method (SRV RRs and priorities/weights) so that a client communicates with a Domain Controller down the hall, instead of another one halfway across the country. Then, just imagine that it's a web browser connecting to a web server, instead of a workstation connecting to a DC.