What is the difference between a LAN and WAN? how do these two networks interact?​

A LAN, abbreviated from Local Area Network, is a network that covers a small geographical area such as homes, offices, and groups of buildings. Whereas a WAN, abbreviated from Wide Area Network, is a network that covers larger geographical areas that can span the globe.

A Wide Area Network (WAN) operates over a much larger area, as they interconnect LANs to allow them to exchange data.