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Networking Essentials: A CompTIA Network+ N10-007 Textbook, Fifth Edition by Jeffrey S. Beasley, Piyasat Nilkaew

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Chapter 3. Physical Layer Cabling: Fiber Optics

Chapter Outline

3-1 Introduction

3-2 The Nature of Light

3-3 Fiber Attenuation and Dispersion

3-4 Optical Components

3-5 Optical Networking

3-6 Safety

Summary

Questions and Problems

Objectives

  • Describe the advantages of glass fiber over copper conductors

  • Describe the differences in how light travels in single-mode and multimode fiber

  • Define attenuation and dispersion in fiber-optic cabling

  • Describe the components of a fiber-optic system

  • Describe the issues involved in optical networking, including fiber-to-the-business and fiber-to-the-home

  • Describe the new networking developments associated with optical Ethernet

  • Understand the safety issues when working with fiber optics

Key Terms

refractive ...

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