These are just my best (and generally uninformed) guesses ;)
1) The server would be able to maintain its own speed, and update the faster clients a a good rate. The slow player would appear to be slow to react from the point of view of faster clients. For the slow client, their gameplay will be heavily penalised as the server updates would come in such a low frequency, they would experience severe 'lagging', eventually, the latency would get so bad it would exceed a timeout period and the client connection will be dropped.
2) I would imagine that it is loaded in small chunks, or generated based on some algorithmic format.
3) Dunno - never played it (I said my opinion was uninformed! :D )
4) Same.
1) The server would be able to maintain its own speed, and update the faster clients a a good rate. The slow player would appear to be slow to react from the point of view of faster clients. For the slow client, their gameplay will be heavily penalised as the server updates would come in such a low frequency, they would experience severe 'lagging', eventually, the latency would get so bad it would exceed a timeout period and the client connection will be dropped.
2) I would imagine that it is loaded in small chunks, or generated based on some algorithmic format.
3) Dunno - never played it (I said my opinion was uninformed! :D )
4) Same.