How data flow from source to destination, Explain each step
from layer to layer?
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Answer Posted / syed mahboob feroz ahmed
Hi,
The concept of Transferring data from sourse to Destination
is known as OSI Model.There are 7 layers on the Source Side
and 7 Layers on the Destination Side and these layers are
defined as below :
1)Presentation Layer
2)DataLink Layer
3)Network Layer
4)Transport Layer
5)Session Layer
6)Physical Layer
7)Application Layer
Presentation Layer helps in Converting data from machine
Language to User Level Language.
DataLink Layer links Data from Source to Destination .
Among all these layers Network Layer Plays a Vital Role in
Transmitting data from Sourse to Destination without
Network Layer no transmission of data is possible.
Transport Layer helps in transmitting data from Source to
Destination.
Session Layer creates Session.
Physical Layer Consists of both input and output devices on
a system (ex.LanCard,Modem,Ram Etc)
Application Layer : Application Layer is saved in the form
of file extension .
With the help of these 7 layers on
source side and Destination side data flow is possible and
this concept is known as OSI Model.
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