1- in LAN we can have one or more subnets, and the subnets can be in one building, or many different building spread over a geographic area. Correct?
If so,my question would be what 's the difference between LAN and WAN.
2- Site topology is based on subnets. Correct?
My questions is what determine that we need one site[intrasite] or many [ intersite]?
How physically ,intrasite/intersite, are setup? an example would help.