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

Ethernet standards

Ethernet is the de facto technology that is used on all modern LANs within organizations. Ethernet helps both end devices and networking devices to communicate over both a wired and wireless network infrastructure using various networking protocols and standards. As you may recall, protocols are simply the rules, procedures, and methodologies that are used to govern how information and data are sent across a network between systems.

As with all technologies in the world, various Ethernet standards are maintained by the Institute of Electrical and Electronics Engineers (IEEE) that define how communication occurs across a wired network, whether the network media is copper or fiber optic cables. The IEEE 802.3 standard is used on LANs for communication and there are many variants of this standard. Each variant specifies the type of media used for communication between devices and the support speed/bandwidth of the interface of a device.

Since the IEEE 802.3 standard...