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CS402: Computer Communications and Networks

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  • 2.2: Open Systems Interconnect (OSI) Reference Model
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  • 2.2: Open Systems Interconnect (OSI) Reference Model

    • Université Catholique de Louvain: Olivier Bonaventure's "Computer Networking: Principles, Protocols, and Practice" URL

      Read Sections 2.2.3 and 2.3, "The OSI Reference Model" and "Organisation of the Book," on pages 24-25.

      As you read, consider the following questions: Which came first, the OSI model or the TCP/IP model? Which layers in the OSI model appear to be missing in the TCP/IP stack? Where are they in the TCP/IP model?

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