Ok, so you may have set up AD, done your Domain and it all works and the world is a happy place. But Alas! You now have to deal with the Branch Office. Dead easy. You got your connection to it? Check. You know the name you want to use? Check. You got the subnet? Check.
Read these and be done with it!
There considerations such as the Cost (really for multiple sites) and the Replication schedule. I’ve always found the traffic/bandwidth use, to be minimal, but your mileage may vary depending on those underground wires you’re connected to. Or satellite. Or point to point laser link (Pew pew! Aw it’s foggy it doesn’t work anymore!)
Kibble Network 