Which type of modem uses ADSL technology?

A DSL modem is the correct choice because it is specifically designed to use Asymmetric Digital Subscriber Line (ADSL) technology. ADSL is a type of DSL technology that allows for high-speed internet access over traditional copper telephone lines while enabling simultaneous voice and data transmission. The modem modulates and demodulates the signals to facilitate this process, converting digital data from a computer into analog for transmission over the telephone lines and vice versa.

In contrast, cable modems utilize coaxial cables to connect to internet service provided by cable television companies, which is fundamentally different from the ADSL approach. Wireless modems typically refer to devices that provide wireless connectivity and may use various technologies, including cellular data, but do not specifically implement ADSL. Satellite modems operate using satellite connections, providing internet access via satellite communication, which is also unrelated to ADSL technology. Thus, a DSL modem is uniquely suited for operating on ADSL lines, making it the definitive answer.