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Definition of TCP/IP

TCP/IP (The Transmission Control Protocol/Internet Protocol) is the protocol suite that drives the Internet. Specifically, TCP/IP handles network communications between network nodes (computers, or nodes, connected to the Internet).

The suite is actually composed of several protocols:

• IP handles the movement of data between host computers,
• TCP manages the movement of data between applications,
• UDP manages the movement of data between applications but is less complex than TCP, and
• ICMP transmits error messages and network traffic statistics.