In a residential network, a cable modem is connected between which two points?

The cable modem serves a crucial role in connecting a residential network to the internet. By being positioned at the boundary between the Internet Service Provider (ISP) and the home network, the modem converts signals from the cable service into a form that can be understood by devices in the home.

When a user subscribes to internet service through their ISP, the cable modem acts as the gateway to that internet connection. It receives data from the ISP via the coaxial cable and then passes it along to the home router or directly to devices within the network, facilitating internet access for all connected devices.

Other scenarios, like options involving a home router connecting to computers or televisions interacting with wall outlets, do not accurately depict the role of a cable modem in this setup. The modem specifically functions to bridge the external internet infrastructure and the internal home network, making option A the correct choice.