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1. Local-Area Network (LAN); is a computer network located in a single building or in nearby buildings e.g. a school, a department, or a number of offices. Typically the computers are connected by copper cables.
2. Wide-Area Network (WAN); is a network which serves computers located at far away distances - across towns and countries. Communication between the various computers is usually carried out via telephone lines, fibre-optic links, radio link, satellite etc.
3. Virtual Private Network (VPN); is a private network that is built over a public infrastructure typically the Internet. A VPN is similar to a WAN in that it enables users to connect to a private network that may be located at far away distances, however VPN uses the Internet for such connections. Several companies enable their employees to connect to the company’s private network (LAN) from their homes via VPN connections. Employees will be able to access data and other resources securely on the company’s network as if they are at the office.
Dominic M answered the question on May 16, 2018 at 09:48
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