what is PPTP protocol?what is WAN?What is Ethearnet?

Answer 1

The Point-to-Point Tunneling Protocol (PPTP) is a method for implementing virtual private networks

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wide area network (WAN) is a computer network that covers a broad geographical area

i.e.,
any network whose communications links cross metropolitan, regional, or national boundaries

Or, less formally, a network that uses routers and public communications links

so "" WANs are used to connect (LANs) and other types of networks together, so that users and computers in one location can communicate with users and computers in other locations ""

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Ethernet is a large, diverse family of frame-based computer networking technologies for local area networks (LANs).

Ethernet has been standardized as IEEE 802.3.

Answer 2

Point-to-Point Tunneling Protocol (PPTP) is a method for implementing virtual private networks.

Wide Area Network (WAN) is a computer network that covers a broad geographical area (i.e., any network whose communications links cross metropolitan, regional, or national boundaries)

Ethernet is a large, diverse family of frame-based computer networking technologies for local area networks (LANs). The name comes from the physical concept of the ether. It defines a number of wiring and signaling standards for the physical layer, through means of network access at the Media Access Control (MAC)/Data Link Layer, and a common addressing format.

Answer 3

Try looking up your networking and other computer terminology questions at http://www.webopedia.com - it's an excellent resource.