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)
1
Part 1: Networking Concepts
9
Part 2: Network Implementation
13
Part 3: Network Operations
17
Part 4: Network Security and Troubleshooting
22
Chapter 18: Practice Exam

Hardware-based troubleshooting tools

Let’s first investigate some of the common hardware devices used to troubleshoot and repair both copper-based and fiber-based networks:

  • Crimper: A crimper is a tool used to attach copper cables to connectors. In modern networks, this is most often used to attach a twisted-pair copper cable to RJ45 connectors, but crimpers also exist for other types of copper cables. The main purpose of a crimper is to press electrical contacts down into the individual copper cables, thereby establishing electrical connectivity between the cables and the connectors. Additionally, they press the plastic hammer down onto the outer sheath of the cable, thereby fixing the connector to the cable. Crimpers usually contain parts to peel the outer sheath and trim the length of the individual copper wires.

The following photo shows a crimping tool:

Figure 17.5 – Network crimper/crimping tool

  • Cable tester: After copper...