Wide Area Network

Wide area network (wan) is a computer network that covers a broad area (i. E. , any network whose communications links cross metropolitan, regional, or national boundaries. Contrast with personal area networks (pans), local area networks (lans), campus area networks (cans), or metropolitan area networks (mans) which are usually limited to a room, building, campus or specific metropolitan area (e. G. , a city) respectively. The largest and most well-known example of a wan is the internet. there are two prevailing definitions of a wide area network (wan). The book definition of a wan is a network that spans large geographical locations, usually to interconnect multiple local area networks (lans). The practical definition of a wan is a network that traverses a public network or commercial carrier, using one of several wan technologies.