What type of Internet connection uses all-digital networks?

Digital Subscriber Line (DSL) connections utilize all-digital networks by transmitting digital data over existing telephone lines. This technology allows for higher speeds and better performance compared to the traditional dial-up connections, which rely on analog signals. DSL converts digital data from a computer into a format that can travel over the phone lines but remains in a digital form throughout the transmission process, making it efficient for internet usage.

In contrast, dial-up connections use analog signals, requiring modems to convert digital data to analog and back again, which slows down the connection. Leased lines, while providing dedicated bandwidth and faster speeds, may not always operate purely on all-digital networks, depending on the specific technology in use. Wireless broadband can also deliver high-speed internet but frequently interfaces with both digital and analog systems when connecting to the internet. Therefore, DSL stands out as the connection type that operates solely within an all-digital framework, providing a more efficient and faster internet experience.