To
understand what the application layer does, a user might want to use Internet
Explorer to open it
FTP
session and file transfer. In this particular case, the application phase would
define a file transfer
protocol.
This protocol is not accessible to the end user. The end user has yet to use an
application
designed
to interact with the file transfer protocol. In this case, Internet Explorer
would be like this
application.
The
display format
The
presentation stage does some complicated things, but anything the show does can
to
be summarized in one sentence. The view layer takes the data provided by the
application layer,
and
convert it to a standard format understandable at other levels. Likewise, this
fold changes the file
incoming
data obtained from returning the session to something that includes the
application layer.
The
reason this integration is needed is because applications handle data
differently. In
for
network communication to function correctly, the data must be structured in a
standard way.
The
format of the session
Once
the data is entered in the correct format, the guest must set up a session with
the
is
hosted. This is where the session level comes into play. It is responsible for
the configuration, maintenance,
and
finally conclude the session with the isolated guest.
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