In regards to computer networking
1) If you have 20 stations all connected to the same wire and all using digital transmission. What method of sharing the media must be used? Why do you need a sharing method?
2) Wiring specifications for a protocol such as Ethernet have a maximum length for a wire between two stations. Why does there have to be a maximum length for a wire?
3) What transmission impairment(s) are improved when moving from twisted pair to coax cable.