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PRESENTATION

on June 19, 2022

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PRESENTATION

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OSI MODEL (PART I)

7 LAYERS OF OSI MODEL A conceptual framework for describing the operations of a networking system is called the OSI Model (Open Systems Interconnection Model). In order to facilitate interoperability across various goods and software, the OSI model categorizes computing functions into a universal set of guidelines and requirements. Physical, Data Link, Network, Transport, Session, Presentation, and Application are the seven separate abstraction layers into which the communications between computing systems are divided in the OSI reference model. Figure 1: 7 layers of the OSI Model 1. Physical Layer The physical layer is responsible for transmitting individual bits from one node to the next. The physical tools used for data transfer, like cables and switches, are included in this layer. This layer is also where the data is transformed into a bit stream, or a series of ones and zeros. In order to differentiate the 1s from the 0s on both devices, the physical layer of both devices m...

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PRESENTATION

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