OSI Model Analogy Trevor Crews Strayer

The OSI model is the model developed for computer-to-computer communications over a network. This model breaks down all the functions that occur into seven distinct layers. These layers are, application, presentation, session, transport, network, data link, and the physical layer. Each one encompasses a specific part of the process that occurs during the communication. In order to simplify this think of it like sending a package through the post office. It can be broken down into seven stages or layers for this example. We start with bringing an item or letter to the post office that is to be sent to a determined destination. This is essentially what happens in the application layer. This is the interface between the communication and the entire process as it is in how a computer works. Next the item is packaged and put into a box or envelope. This

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