What Is OSI Protocols?

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An analogy that comes to mind when thinking about OSI protocols is the etiquette of a formal meal. Computers require similar procedures for communicating with one another as humans do when entertaining the queen. Efforts to standardize these protocols led to the development of the Open Systems Interconnection (OSI) architecture. Imagine a seven-layer cake, with each component responsible for a different function. The physical layer is the foundation because it handles the mechanical aspects of connecting devices. The process of this layer is to relay information from one device to another via some medium, such as a wire, fiber optic cable, or wireless link. Info transmission at the physical layer. The second component, the data link layer, manages how data is transmitted across the underlying physical link. At this level, we check for and fix transmission errors. The third tier, the network layer, concerns data transmission from one device to another. Data is correctly conveyed to their intended recipient via logical addressing in this layer. It's routing at the network layer. The fourth level, "transit," is concerned with transmitting information between programs. This component guarantees that news arrives in a dependable and timely fashion. The fifth layer is the session layer, which sets up and keeps communication between applications. Control of sessions and their coordination are handled at this level. The sixth layer is the presentation layer, which deals with how the material is presented to the user. This layer takes charge of things like data compression, encryption, and decryption. The seventh and final layer is the application layer, which deals with particular apps like email, web browsing, or file sharing. In this layer, people can talk to one another. The OSI model's seven levels are summarised here. Like the guests at a formal meal, each layer in a network has a distinct function. Similarly to how you wouldn't wear a tuxedo to a backyard barbecue, OSI protocols are optional for important device-to-device contact. On the other hand, OSI protocols are the way to go for complex communication between numerous devices on a network.

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