Servers connection differences/uses

Hi,

I've read the multiplayer tutorial on I-phone but some questions remains ....

What are these three different types used for ?

The game that I want to create should work this way :

A server can host 100 games simultaneously. All of this instances (map generated games) should be parameterized and host 10 to 16 player.

I've also some others questions:

What will be the differences between the client and the server ? (apart from the games handler scripts like map generator, Level/xp/unlocks handler, matchmaking etc ...)

Thanks.

I'm surprised that no one have answers lol

The reason you have no answers is that this is a VERY general question asked about one of the most complicated topics in Unity. If you can make your answer a little bit more specific, you’d be much more likely to get an answer.