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The packets sent by Host A to Host B will have to pass through 7 OSI layer.
In the physical layer, the lowest OSI layer the sent packets is transmitted across the physical layer of the sending device to the physical layer of the receiving device.
In the data link layer, nodes connected directly are used to perform node-to-node data transfer where the sent packets are packaged into frames. Errors that might have occurred in the physical layer is corrected in the data link layer.
In the network layer, the frames from the data link layer are received, and prepared for delivery to their intended destination among based on the addresses contained inside the frame which in this case is Host B.
In the transport layer, the delivery and error checking of packets takes place. This layer regulates the size, sequencing, and ultimately the transfer of data between systems and host.
In the session layer, A control of the conversations between different computers takes place.
In the presentation layer, formating or translating of data for the application layer based on the syntax or semantics that the application accepts is done.
In the application layer, both the end user and the application layer interact directly with the software application.
What is the OSI model?
The OSI Model also known as Open Systems Interconnection Model, is a framework used to describe the functions of a networking system.
Learn more on the OSI model from:
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