Which device is an example of a router?

The AirPort base station is a device that functions as a router, providing the capability to connect multiple devices to a network and manage their data communications. It serves as a central hub that can forward data packets between devices on a local network and also connect those devices to the internet.

Routers like the AirPort base station are responsible for directing traffic within a network, assigning IP addresses to connected devices, and ensuring that data packets reach their intended destinations efficiently. In addition to routing, the AirPort base station often includes features such as wireless access for devices, firewall protection, and sometimes even network storage capabilities.

The other devices mentioned have distinct roles in networking, with a network switch primarily focusing on directing data between devices within the local network without performing routing functions. A modem connects a network to an internet service provider and translates signals, while a wireless access point serves to extend a wired network by adding wireless capabilities without performing routing tasks. Therefore, the AirPort base station stands out as the example of a routing device among the choices given.