How does a switch differ from a router?

The correct choice highlights the function of a switch in networking. A switch is designed to facilitate communication between multiple devices within a single local area network (LAN). It does this by receiving incoming data packets and directing them only to the device that needs that data, effectively creating a network where several devices can communicate with one another.

When stating that a switch can divide one connection into multiple connections, it emphasizes that a switch enables multiple devices to connect and communicate simultaneously over the same network connection. Essentially, a switch takes the single input connection from the router or network and splits it into various outputs for different devices, maintaining efficient data transmission.

This function is a key aspect of switches versus routers. While routers are tasked with directing traffic between different networks and often manage IP address assignment, switches operate primarily within a single network, managing data packets internally among connected devices.