Transmission Control Protocol /Internet Protocol is the set of
communications protocols that used for the Internet. It was created by the
Department of Defense of USA in order to preserve data integrity. This suite is
a compact version of the OSI model and consists of four, instead of seven of
OSI, layers:
The Process/Application
layer defines protocols for node-to node application communication and also
controls user-interface specifications.
The Host to Host layer
defines protocols for setting up the level of transmission service for
applications. It handles issues such as creating reliable end to end communication
and ensuring the error free delivery of data.
The Internet layer
designates the protocols relating the logical transmission of packets over the
network. It gives IP addresses to the hosts and handles the routing of packets
among the networks.
The Link layer monitors the data exchange between the host and
the network, overseeing hardware addressing and defining protocols for the
physical transmission of data.
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