Chapter 4. Components and Devices
This chapter covers the following official Network+ objectives:
• Classify how applications, devices, and protocols relate to the OSI model layers.
• Identify virtual network components.
• Explain the purpose and features of various network appliances.
This chapter covers CompTIA Network+ objectives 1.2, 1.9, and 4.1 For more information on the official Network+ exam topics, see the “About the Network+ Exam” section in the “Introduction.”
All but the most basic of networks require devices to provide connectivity and functionality. Understanding how these networking devices operate and identifying the functions they perform are essential skills for any network administrator and are requirements for a Network+ ...
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