What is a wide area network (WAN)?

A wide area network (WAN) is characterized by its ability to connect multiple remote locations that may be geographically separated, such as cities or even countries. It allows for the exchange of data over significant distances, utilizing various transmission technologies, such as leased lines, satellite connections, or the internet. This connectivity enables organizations to establish network communications across multiple offices or branches, promoting collaboration and resource sharing.

The choice you provided accurately reflects the definition and scope of a WAN, emphasizing its role in linking diverse and distant locations. By contrast, other types of networks focus on more limited geographical areas: local area networks (LANs) are confined to a single building or specific campus, while personal area networks (PANs) concentrate on connecting personal devices within a very short range, such as within a room.