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Unit 2 - Individual Project 2

Unit 2 - Individual Project 2 - OSI Model and Client-Server...

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OSI Model and Client-Server Communication 1 Introduction: The OSI model was introduced in 1984. Although it was designed to be an abstract model, the OSI model remains a practical framework for today's key network technologies like Ethernet and protocols like IP. The OSI model defines internetworking in terms of a vertical stack of seven layers. The upper layers of the OSI model represent software that implements network services like encryption and connection management. The lower layers of the OSI model implement more primitive, hardware-oriented functions like routing, addressing, and flow control. In the OSI model, data communication starts with the top layer at the sending side, travels down the OSI model stack to the bottom layer, and then traverses the network connection to the bottom layer on the receiving side, and up its OSI model stack. How OSI model relates to a network: Information being transferred from a software application in one computer system called client to a software application in another must pass through the OSI layers.
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