Book Image

CCENT/CCNA: ICND1 100-105 Certification Guide

By : Bekim Dauti
Book Image

CCENT/CCNA: ICND1 100-105 Certification Guide

By: Bekim Dauti

Overview of this book

CCENT is the entry-level certification for those looking to venture into the networking world. This guide will help you stay up-to date with your networking skills. This book starts with the basics and will take you through everything essential to pass the certification exam. It extensively covers IPv4 and IPv6 addressing, IP data networks, switching and routing, network security, and much more—all in some detail. This guide will provide real-world examples with a bunch of hands-on labs to give you immense expertise in important networking tasks, with a practical approach. Each chapter consists of practice questions to help you take up a challenge from what you have procured. This book ends with mock tests with several examples to help you confidently pass the certification. This Certification Guide consists of everything you need to know in order to pass the ICND 1 100-105 Exam, thus obtaining a CCENT certification. However, practicing with real switches and routers or a switch or router simulator will help you succeed.
Table of Contents (18 chapters)
10
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Appendix G: Graphical Network Simulator-3 (GNS3)

Network trends

We live in the Internet of Things (IoT) era in which the internet dictates the way we live and work. Therefore, things that were only science fiction a few years ago have started to become a reality. Thus, the overwhelming development of technology has transformed our world into an ever-changing environment. This necessarily requires everyone to adapt to this new reality. Some of the current trends in computer networks include the following:

  • Improved security is becoming the topmost priority of enterprise networks. That is due to the fact that the number of users is growing more and more, and with that, more sophisticated have become the cyber criminals attacks.
  • Increased bandwidth is ranked by analysts as enterprises second priority, right after the security. That is due to continuously increasing demands for traffic, thus putting the networks under pressure as they carry traffic.
  • Software-defined networks (SDNs) continue to increase in popularity, especially by enterprises. That has to do with the convergence nature of SDNs, which multiplex data over multiple physical links, thus providing better performance than dedicated communication networks.
  • Video communication, besides having made the distance communication between individuals more appealing, has enabled great opportunities for online collaboration and entertainment.
  • Online collaboration, including video communication, brings people together on a common project. In addition to businesses, more and more of this trend is being embraced by educational institutions and individuals.
  • Bring your own devices (BYODs) is a network trend that enables users to use their personal equipment to access business data. Obviously, that enables freedom, flexibility, and more opportunities for end users.
  • Cloud computing, other than changing the way we access and store data, is reshaping the internet too. From businesses to individuals, cloud computing provides on-demand services to any device, anywhere in the world, securely and economically.