How to become a computer Network Engineer????? Computer network engineers, also known as network architects, plan and construct data communication networks, such as local area network (LAN) and wide area network (WAN) systems. This can involve selecting the hardware and software, determining the layout of cables, and overseeing other IT professionals to create networks.
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Wide area networks cover a large geographic area like a city, a country or multiple countries. WANs normally connect multiple LANs and other smaller-scale area networks. WANs are built by large telecommunication companies and other corporations using highly-specialized equipment not found in consumer stores. The Internet is an example of a WAN that joins local and metropolitan area networks across the world.