Differentiate between the DoD and the OSI network models. The DoD model is a
condensed version of the OSI model, composed of four layers instead of seven, but is
nonetheless like the OSI model in that it can be used to describe packet creation and devices
and protocols can be mapped to its layers.
Identify Process/Application layer protocols. Telnet is a terminal emulation program
that allows you to log into a remote host and run programs. File Transfer Protocol (FTP)
is a connection-oriented service that allows you to transfer files. Trivial FTP (TFTP) is a
connectionless file transfer program. Simple Mail Transfer Protocol (SMTP) is a sendmail
program.
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