Which are the correct explanations of the different internet access methods?
dial-up is the fastest form of internet access. it uses existing telephone lines for internet access.
isdn utilizes switched telephonic lines that enable simultaneous internet and voice access.
cable internet access requires the setting up of fiber cables. it is the fastest type of internet access technology.
wi-fi technologies provide internet access to buildings or institutions. however, at higher frequencies, they can cover large geographic areas, such as a town.