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)

Summary

We summarize the chapter with the following points:

  • DHCP is a protocol that dynamically assigns IP addresses to devices on a network.
  • IP addresses that are assigned to devices are located in the DHCP pool.
  • DORA is the acronym that explains how DHCP works.
  • NAT translates private IPv4 addresses to public IPv4 addresses.
  • A stub network is a network that has one way to enter into the network and another way to exit the network:
    • Inside the local address is the address of the device that is being translated by NAT.
    • Inside the global address is the address of the inside interface of the NAT-enabled router.
    • Outside the local address is the address of the NAT-enabled router that connects the LAN.
    • Outside the global address is the address of the NAT-enabled router that connects to internet.
    • One-to-one translation, known also as static address translation (static NAT), translates...