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Solaris™ 9 System Administrator Exam Cram™ 2 (Exams 310-014 and 310-015) by Darrell Ambro

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Networking Models

Although a variety of networking models have been developed over the years, most of the commercially available networks use one of the two following models:

  • The Open System Interconnection (OSI) model

  • The Transmission Control Protocol/Internet Protocol (TCP/IP) model

Of these two, TCP/IP is the predominate model.

The Open System Interconnection (OSI) Model

The OSI network model developed by the International Standards Organization (ISO) consists of seven layers of services. Each layer is responsible for handling a different aspect of network communication.

When sending data, each layer performs its processing on the data and passes it to the next lower layer. When receiving data, each layer performs its processing on the data ...

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