What type of modem is commonly used for Ethernet connections?

A cable modem is designed specifically for broadband internet service delivered over coaxial cable, commonly used in residential and commercial settings. It connects to the Ethernet port on a router or directly to a computer, allowing for the transmission of high-speed data. The technology relies on the same infrastructure that delivers cable television, thereby providing a stable and fast internet connection suitable for multiple users and devices.

In contrast, dial-up modems utilize a standard telephone line to connect to the internet, which is significantly slower and not suitable for reliable and high-volume Ethernet connections. ISDN modems are based on Integrated Services Digital Network technology and are generally used in specific situations, providing digital transmission over traditional telephone lines, but are less common today due to advancements in broadband technologies. DSL modems, while also used for internet connections, rely on telephone lines and provide slower speeds compared to cable modems, making them less optimal when considering Ethernet connectivity.