What does installing separate breaker boxes for each office area do to eletrical nois

[Mancora]

:you talking about isolated ground?

Im not sure, they didnt say these, were some sample questions from a Cisco networking test, so that might give you and idea of where their coming from.

:njdevs95

I seem to remember them talking about somethig similar to that, that you could get EMI from having something like a fridge/washing machine and a hub pluged into the same socket... but wait is that right? Wouldn't the problems be mostly because the fridge/washing machine sucks out a ton of juice when it starts thus causing the lights to dim?

Might not the scrambled picture come more from the EMI produced via the unit itself rather what wallsocket it was pluged into?