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A computer network, also known as a data network, is a series of interconnected nodes that can send, receive and exchange data, voice, and video traffic. The devices use a variety of protocols and algorithms to determine precisely how endpoints should send and receive data. For example, the Ethernet standard sets a common language for wired network communications and the 802.11 standard does the same for wireless local area networks (WLAN).To establish a standard means of communication, all packet-switched networks use TCP / IP. Ea... more