Which network device is typically responsible for directing traffic between different networks?

The router is the network device typically responsible for directing traffic between different networks. Routers analyze incoming data packets and determine the best way to forward them to their destination across various networks. They operate at the network layer of the OSI model and utilize IP addresses to facilitate communication between devices that may be on different networks or subnets. This makes them essential for connecting multiple networks, such as linking a local area network (LAN) to a wide area network (WAN) or the internet.

In contrast, hubs and switches operate primarily within a single network. Hubs simply connect devices within a network without any intelligent traffic management, while switches connect devices based on MAC addresses but do not manage traffic between separate networks. An access point serves as a bridge to connect wireless devices to a wired network but does not route traffic between networks. Thus, the router uniquely fulfills the role of directing traffic across different networks, ensuring efficient and accurate data transmission.