Chapter 2

Models, Ports, Protocols, and Network Services

This chapter covers the following official Network+ objectives:

  • Images Compare and contrast the Open Systems Interconnection (OSI) model layers and encapsulation concepts.

  • Images Explain common ports and protocols, their application, and encrypted alternatives.

  • Images Explain the use and purpose of network services.

This chapter covers CompTIA Network+ objectives 1.1, 1.5, and 1.6. For more information on ...

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