Which device can be used to share an internet connection among multiple devices?

A network router is designed to share an internet connection among multiple devices. It connects to an internet source, such as a modem, and enables multiple devices within a local network to access that internet connection simultaneously. The router uses IP addressing to manage traffic between devices on the network and the internet, ensuring that data packets are routed correctly to and from each device. Additionally, many modern routers also provide built-in security features, such as firewalls and network address translation (NAT), further securing the internet connection for all devices on the network.

In contrast, a network switch would only allow connected devices to communicate within a local network and does not manage internet access. A network bridge connects two segments of a network to increase performance and reduce collisions, but it does not inherently share internet connectivity. A network repeater amplifies signals to extend the range of a network but does not control or distribute internet traffic. Thus, the router is the appropriate choice for sharing an internet connection.