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CCENT/CCNA: ICND1 100-105 Certification Guide

You're reading from   CCENT/CCNA: ICND1 100-105 Certification Guide Learn computer network essentials and enhance your networking skills by obtaining the CCENT certification

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Product type Paperback
Published in Apr 2018
Publisher
ISBN-13 9781788621434
Length 362 pages
Edition 1st Edition
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Author (1):
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Bekim Dauti Bekim Dauti
Author Profile Icon Bekim Dauti
Bekim Dauti
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Toc

Table of Contents (18) Chapters Close

Preface 1. Introduction to Computer Networks FREE CHAPTER 2. Communication in Computer Networks 3. Introduction to Switching 4. Setting Up the Switch 5. Introduction to Routing 6. Setting up the Router 7. Networking Services and Maintenance 8. Network Troubleshooting 9. Studying and Preparing for ICND 1 (100-105) Exam 10. Other Books you may enjoy
Appendix A: Answers to Chapter Questions 1. Appendix B: Cisco Device Icons 2. Appendix C: Numbering Systems and Conversions 3. Appendix D: Boolean Algebra 4. Appendix E: Subnetting 5. Appendix F: Cisco Packet Tracer 6. Appendix G: Graphical Network Simulator-3 (GNS3)

OSI and TCP/IP model overview

In order to describe the functionality of the network, including communication between computers, a layered model is used. These layers facilitate the operating system's work whenever the computer is required to communicate with other computers. This concept dates back to the 1960s, known as the time of internet development. It consisted of two protocols, IP and TCP. At that time, the layered framework called the TCP/IP reference model was designed so that later on, it had set the standard of networking functionality on the internet, enabling computers to communicate through a layered format.

To understand the layered model, let's get familiar with the following concepts:

  • The protocol suite is a communication protocol stack that is comprised of a set of communications protocols. Some of the most well-known protocol suites in the history...
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