OSI Model - 4
Open System Interconnection (OSI) Model - 4 Summary on what we have studied in last tutorial :- Session layer establishes, manages, synchronizes and terminates connection between the computers. It also sets up, co-ordinates and terminates interactions and dialogues between communicating devices. The session layer is responsible for setting up sessions between communicating devices. It allows two devices to enter into dialog (communication process). At the session layer, checkpoints (synchronization bits) are added into a stream of data to synchronize the sessions. Presentation layer deals with syntax and semantics of the data exchanged between two devices. It transforms the data in the format that will be accepted by the application layer. Presentation layer receives data from application layer. It adds header to the data and passes data to the session layer. The presentation layer also adds security to data by encrypting it. Encry...