Networking Protocols
Protocols are simply the rules by which something functions. In the case of network protocols, these are the rules that control how data is processed. Protocols often have OSI layer–specific functionality that they are responsible for. As discussed in the following sections, there are a number of protocols that a security professional should be aware of in network environments.
Transmission Control Protocol/Internet Protocol
Transmission Control Protocol/Internet Protocol (TCP/IP) is the foundation on which virtually all networking today occurs. TCP/IP is actually a suite of protocols that was developed by the Department of Defense to provide a highly reliable and fault tolerant communications infrastructure. TCP/IP was designed ...
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