Which device is responsible for routing data between networks?

The device responsible for routing data between networks is a router. Routers connect multiple networks and direct data packets between them, ensuring that the data sent from one network arrives at the correct destination across other networks. They use routing tables and protocols to determine the best path for the data to travel, which is crucial for efficient network communication.

In contrast, a switch operates within a single network and manages the data traffic within that network by forwarding data to the specific device it is intended for, based on MAC addresses. A hub simply broadcasts data to all connected devices without filtering, which can lead to collisions and inefficient use of bandwidth. An access point serves as a bridge between a wired network and wireless devices, allowing wireless devices to connect and access the network but does not perform routing functions between different networks.