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What are TCP ports?

April 26, 2017ports TCP

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What are TCP ports?

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A. Data transmitted over a network using the Transport Control Protocol/Internet Protocol (TCP/IP), such as the Internet, includes address information that identifies the computer (32-bit IP address) and a port. Ports number (16-bit number) the ends of logical connections used for long-term data transfers between applications. For example port 80 is the standard File Transfer Protocol (FTP) port used by HyperText Transfer Protocol (HTTP) to send and retrieve web pages. Service contact ports or “well-known ports” are used to provide services to unknown callers.