Network and Communication Protocol

In computing, a protocol is a convention or standard that controls or enables the connection, communication, and data transfer between two computing endpoints. In its simplest form, a protocol can be defined as the rules governing the syntax, semantics, and synchronization of communication. Protocols may be implemented by hardware, software, or a combination of the two. At the lowest level, a protocol defines the behavior of a hardware connection. Five different protocols are:

  1. TCP/IP
  2. FTP
  3. HTTP
  4. SMTP
  5. POP

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