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

High availability concepts

High availability (HA) is simply the ability of a system or a network to continuously operate without failure. For instance, network professionals implement various techniques and technologies into their network infrastructure to ensure it can continue operating without failing over a very long time. For instance, imagine if a switch or a router were to fail within a company; what will be the impact and how many users will be affected? What if the router was connecting the organization’s internal network to the internet service provider (ISP) network? All the users within the organization will be affected and if the company was depending on resources or services that are hosted on a cloud provider’s data center, those cloud resources will be inaccessible.

A common strategy for setting up HA within an organization is to implement fault tolerance in the form of redundancy in hardware components on devices and network infrastructure. For instance...