You do not have the required permissions to view the files attached to this post.
The Seven Layers of the OSI Model
The OSI reference model defines the network functions that occur at each layer.
The physical layer defines the electrical, mechanical, procedural, and functional specifications for activating, maintaining, and deactivating the physical link between end systems.
03.png
The data link layer defines how data is formatted for transmission and how access to the physical media is controlled.
04.png
The network layer provides connectivity and path selection between two host systems that may be located on geographically separated networks.
05.png
The transport layer segments data from the system of the sending host and reassembles the data into a data stream on the system of the receiving host.
06.png
The session layer establishes, manages, and terminates sessions between two communicating hosts.
07.png
The presentation layer ensures that the information sent at the application layer of one system is readable by the application layer of another system.
08.png
The application layer provides network services to the applications of the user, such as e-mail, file transfer, and terminal emulation.
09.png