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CompTIA Network+ Certification Guide

You're reading from  CompTIA Network+ Certification Guide

Product type Book
Published in Dec 2018
Publisher
ISBN-13 9781789340501
Pages 422 pages
Edition 1st Edition
Languages
Authors (2):
Glen D. Singh Glen D. Singh
Profile icon Glen D. Singh
Rishi Latchmepersad Rishi Latchmepersad
Profile icon Rishi Latchmepersad
View More author details
Toc

Table of Contents (17) Chapters close

Preface 1. The OSI Reference Model and the TCP/IP Stack 2. Network Ports, Protocols, and Topologies 3. Ethernet 4. Understanding IPv4 and IPv6 5. Routing and Switching Concepts 6. Wireless and Cloud Technologies 7. Network Components 8. Network Virtualization and WAN Technologies 9. Business Continuity and Disaster Recovery Concepts 10. Network Identity Management and Policies 11. Network Security Concepts 12. TCP/IP Security 13. Organizational Security 14. Troubleshooting a Network 15. Assessment 16. Other Books You May Enjoy

Subnetting

What is subnetting and why do we need to subnet a network? First, subnetting is the process of breaking down a single IP address block into smaller subnetworks (subnets). Second, the reason we need to subnet is to efficiently distribute IP addresses with the result of less wastage. This brings us to other questions, such as why do we need to break down a single IP address block, and why is least wastage so important? Could we simply assign a Class A, B, or C address block to a network of any size? To answer these questions, we will go more in depth with this topic by using practical examples and scenarios.

Let's assume that you are a network administrator at a local company and one day the IT manager assigns a new task to you. The task is to redesign the IP scheme of the company. He has also told you to use an address class that is suitable for the company&apos...

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