fill ups 1._________ device is smarter than hub. 2. _________is used to regenerate the signals. 3.SMTP stands for ____________. 4. _____________are the physical media. 5.MAN stands for _________. 6. __________describes the way in which the elements of network are mapped . 7. ________are the mediator device that allows us to connect all computers together. 8.__________ is the design of a commucation network