What are protocols and give is characteristics
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Protocols exist at several levels in a telecommunication connection. For example, there are protocols for the data interchange at the hardware device level and protocols for data interchange at the application program level. In the standard model known as Open Systems Interconnection (OSI), there are one or more protocols at each layer in the telecommunication exchange that both ends of the exchange must recognize and observe. Protocols are often described in an industry or international standard.
The TCP/IP Internet protocols, a common example, consist of:
Transmission Control Protocol (TCP), which uses a set of rules to exchange messages with other Internet points at the information packet levelInternet Protocol (IP), which uses a set of rules to send and receive messages at the Internet address levelAdditional protocols that include the Hypertext Transfer Protocol (HTTP) and File Transfer Protocol (FTP), each with defined sets of rules to use with corresponding programs elsewhere on the Internet
The TCP/IP Internet protocols, a common example, consist of:
Transmission Control Protocol (TCP), which uses a set of rules to exchange messages with other Internet points at the information packet levelInternet Protocol (IP), which uses a set of rules to send and receive messages at the Internet address levelAdditional protocols that include the Hypertext Transfer Protocol (HTTP) and File Transfer Protocol (FTP), each with defined sets of rules to use with corresponding programs elsewhere on the Internet
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