I was reading on Technet about how to put Exchange on the Internet via the Hub Transport Server role. The article explains that though this is not the best or recommended way of doing things they also know not everyone has two servers to split up Exchange services.
But how do I know if what I am reading on Microsoft's site is supported or just telling me how to do something? If I call them with a problem later one will they say, "that's not supported"? I can't tell.
This is not really an Exchange question, just an example, and how do I know if something is supported or not.