What is the function of a network switch?

A network switch plays a crucial role in managing data traffic within a local area network (LAN). Its primary function is to receive data packets from one device, process them, and then forward them to the appropriate destination device within the network. This process is essential for establishing communications between multiple devices, such as computers, printers, and servers, effectively facilitating data exchange.

Switches operate at the data link layer of the OSI model, meaning they are responsible for using MAC addresses to determine where to send the data. By intelligently directing data only to the intended recipient rather than broadcasting it to all devices, switches enhance network performance and reduce congestion. This results in a more efficient network environment, allowing for faster communication and reduced chances of collision among data packets.

The other options describe functions that are not relevant to the main role of a network switch. For instance, storing data for future use pertains more to storage devices rather than the forwarding function of switches. The conversion of analog signals to digital is a characteristic of devices like modems or audio interfaces, and increasing wireless coverage relates to access points or wireless routers rather than switches.