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)

Ethernet's frame overview

In the section Ethernet communication technology, in Chapter 2, Communication in Computer Networks, you were introduced to Ethernet history, Ethernet protocols, Ethernet framework, and Ethernet MAC addresses. As a continuation of the second chapter, in the following sections, you will get to know the concepts such as the Ethernet encapsulation frame, Ethernet frame fields, and Ethernet frame processing.

Ethernet frame encapsulation

The data encapsulation in the OSI reference model (see Figure 3.20) will help you to understand Ethernet frame encapsulation. Note that while data flows from the upper layers to lower layers of the OSI reference model, header information is added. Thus, the Transport...