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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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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)

From ARPANET to internet

No one can explain the history of the internet better than the internet itself! Everything started with the US government's project to build a stable and tolerant-in-defects communication network known as the Defense Advanced Research Projects Agency (DARPA). The involvement of research centers and academic institutions in the DARPA project made this project gradually evolve into the ARPANET and the Military Network (MILNET). While the MILNET project was tasked to support operational requirements, the ARPANET project was undertaken to support the need for research (https://www.internetsociety.org/). That said, from 1962 to 1985, the internet already had built its profile. Thus, based on the saying "every new beginning is some beginning’s end", the appearance of the internet on the global computer network stage formally marked the end of the ARPANET's golden era.

According to the internetsociety.org, on October 24, 1995, the Federal Networking Council (FNC) through a resolution, priory consulted with members of the internet community and intellectual property rights, defined the term internet. According to that resolution, the internet refers to the global information system, which:

  • Is logically connected by a global unique address space based on the Internet Protocol (IP) or its subsequent updates;
  • Is able to support the communication through a TCP/IP protocol suite or its subsequent updates and other compatible protocols, and;
  • Provides, uses and makes accessible, either publicly or privately, high-level layered services on the communications and related infrastructure described in that document.

Over time, the development and advancement of computer network technologies took place. Thus, the need to connect and interconnect more computers to computer networks, and with it, more geographical locations, created a need for well-defined terms and concepts to describe computer networking. Because of this, types of computer networks, computer network topologies, computer network architectures, and computer network components were born. Certainly, a computer network represents one of the biggest inventions of mankind in the field of communications. Simply, mention the internet and one will immediately understand how huge the benefit of a computer network is to humanity.

You can learn about the brief history of the internet from https://www.internetsociety.org/internet/history-internet/.
You have been reading a chapter from
CCENT/CCNA: ICND1 100-105 Certification Guide
Published in: Apr 2018
Publisher:
ISBN-13: 9781788621434
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