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)

What is switch?

What is switch? Because we are discussing computer networks, naturally, the first and simplest answers to that question are:

  • Switch is a hardware
  • Switch is a network device

The next question in this line of discussion is: What is switch's function? To which we answer:

  • Switch connects devices on a computer network

Finally, how does switch work? Here is the answer:

  • Switch uses a packet-switching method to receive, process, and forward data to a destination device

Switch essentials

A switch is a Layer 2 network device, connecting your computer, other computers, and network peripheral devices on your LAN, whether at home or at work. Switch is used to extend networks, too. It contains two or more physical...