Explain any two application layer protocol.
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Application Layer Protocols (DNS, SMTP, POP, FTP, HTTP) An application layer protocol defines how application processes (clients and servers), running on different end systems, pass messages to each other.An application layer is an abstraction layer that specifies the shared communications protocols and interface methods used by hosts in a communications network. The application layer abstraction is used in both of the standard models of computer networking: the Internet Protocol Suite (TCP/IP) and the OSI model.
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