We are going to be going with AD pretty soon but I had a couple of questions about whether it would be best to use a single domain or use a sub-domain for another location. This location is over a 1Mbps connection (in Africa) so that would seem to lend itself to using a sub-domain, but when we did a test install using the same domain on both sides replication, etc. was fine.
My questions are:
what happens with the time in each location if they share the domain? Can you have both sites using different time zones?
Will things in Exchange like shared calendar and contacts work better in a single domain environment or is there no difference to Exchange in this respect?
Does AD get the clients to use the best/closest DC for the clients in the other location or is there a danger that they might come across the slow link to try and authenticate? Plus, if both domain controllers went down on the ship would they try to use that pipe or can you get them only to use the ones in there location?