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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
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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)

How do computers communicate?

In the world of humans, for communication to take place between two individuals, it is required that both sides know the language that they want to communicate in. Similarly, in the world of computers, whenever two computers try to communicate, they must support the communication protocol.

To better understand the communication process between two computers, let's examine the example of communication between two individuals. When two people meet and begin to communicate, the following activities take place:

  1. Person A formulates his/her opinion in their mind and utters the words through their mouth.
  2. The air then acts as the transmission medium which transfers the words from person A to person B.
  3. The transmitted words reach the ears of person B, who then, through the center of knowledge, understands the received words.

This works in almost the...

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