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CompTIA® Network+® Rapid Review (Exam N10-005) by Craig Zacker

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Chapter 1. Network Concepts

The Network Concepts domain accounts for approximately 21% of the CompTIA Network+ exam, but more than that, it covers some of the most fundamental principles of computer networking. These are concepts that you encounter repeatedly, both as you prepare for the exam and as you work in the IT field.

To excel at this objective, you must possess a good grasp of certain organizational concepts, such as the OSI reference model; an understanding of basic networking functions, such as IP addressing; and some memorized facts and figures, such as well-known port numbers.

This chapter covers the following objectives:

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