Final answer:
In cable modem technologies, data transmission frequencies are determined by upstream and downstream channels, which are separated to prevent interference.
Step-by-step explanation:
In cable modem technologies, the frequencies dedicated to data transmission are specified by upstream channels and downstream channels. Upstream channels are used for sending data from the user to the Internet service provider, while downstream channels receive data from the provider to the user. These channels occupy different portions of the frequency spectrum allocated for cable modem service to avoid interference.
In cable modem technologies, the frequencies dedicated to data transmission are specified by downstream channels.Upstream channels are used for sending data from the user to the Internet service provider, while downstream channels receive data from the provider to the user. These channels occupy different portions of the frequency spectrum allocated for cable modem service to avoid interference.