Which one of the following is correct definition of Wide Area Network (WAN)?
1) It is a programming language with strong abstraction from the details of the computer.
2) It is a collection of computers interconnected with each other through cables to share their data, information and other common hardware resources.
3) A computer network that covers a broad area (i.e., any network, whose communications links cross metropolitan, regional or national boundaries).
4) Computer network covering a small physical area like a home, office or small groups of buildings, such as a school or an airport.- Voclasses