Book Image

CompTIA Network+ N10-008 Certification Guide - Second Edition

By : Glen D. Singh
Book Image

CompTIA Network+ N10-008 Certification Guide - Second Edition

By: Glen D. Singh

Overview of this book

This book helps you to easily understand core networking concepts without the need of prior industry experience or knowledge within this fi eld of study. This updated second edition of the CompTIA Network+ N10-008 Certification Guide begins by introducing you to the core fundamentals of networking technologies and concepts, before progressing to intermediate and advanced topics using a student-centric approach. You’ll explore best practices for designing and implementing a resilient and scalable network infrastructure to support modern applications and services. Additionally, you’ll learn network security concepts and technologies to effectively secure organizations from cyber attacks and threats. The book also shows you how to efficiently discover and resolve networking issues using common troubleshooting techniques. By the end of this book, you’ll have gained sufficient knowledge to efficiently design, implement, and maintain a network infrastructure as a successful network professional within the industry. You’ll also have gained knowledge of all the official CompTIA Network+ N10-008 exam objectives, networking technologies, and how to apply your skills in the real world.
Table of Contents (26 chapters)
Part 1: Networking Concepts
Part 2: Network Implementation
Part 3: Network Operations
Part 4: Network Security and Troubleshooting
Chapter 18: Practice Exam

Delving into switching concepts

As you have learned so far, network switches are designed and configured to forward frames to their destinations over a network. However, network switches have a lot of additional cool features that allow network professionals to enable special services and functions on a network. In this section, you will learn how network professionals can distribute power over network cables to wireless access points and VoIP phones, prevent a Layer 2 loop on a switching network, aggregate multiple physical links into a single logical link between switches, and discover connected devices on a network.


Power over Ethernet (PoE) is the technology that allows Direct Current (DC) power over a copper Ethernet cable to devices to reduce the need for a dedicated power supply and Alternating Current (AC) power outlets. For instance, imagine you’re a network professional who has been assigned to install an access point in the center of a ceiling within a large...