how osi layers works tell me in detail i m facing so much
of problems with osi layers plz kindly mail me on this
question
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Answer Posted / shahin
Application layer: It is the layer 7th of OSI model. Its
provide user interface that user used to interact with
software application (IE, Opera).
Apart from this, the other key functions performed by
application layer is -
a) Identify & Establish Communication.
b) Determine Resource Availability.
c) Synchronize Communication.
Suppose u want to access www. yahoo.com. To accomplish this
task, u write www.yahoo.com on address bar. Now Internet
Explorer with the help of protocol give u the necessary
interface to access Yahoo web page.
U can take another example, Windows Media player. We can
play music thro Win Media player. At this time, application
layer privide necessary interface to play a song thro media
player.
a) Identify & Establish Communication - Application
identify & determine the communication partner with whom
its goin to transfer data.
When u press enter after write www.yahoo.com, the
application layer determine wheater its a valid URL or not.
If yes, its establish a communication with server where
this page reside.
b)Determine Resource Availability: Application must
determine wheather the sufficient network resources are
available or not for the requested communication.
Application layer determine wheather the yahoo web page is
present on the world wide web or not. Application layer
make sure it.
c) Synchronize Communication: Communication between
application need certain help which is provided by
application layer.
Communication between ur system n web server need certain
help, which is provided by application layer.
If somebody explain more in depth, i'll be thankful to
him/her. thanks in advance...
| Is This Answer Correct ? | 23 Yes | 5 No |
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