Book Image

CCNA Routing and Switching 200-125 Certification Guide

By : Lazaro (Laz) Diaz
Book Image

CCNA Routing and Switching 200-125 Certification Guide

By: Lazaro (Laz) Diaz

Overview of this book

Cisco Certified Network Associate (CCNA) Routing and Switching is one of the most important qualifications for keeping your networking skills up to date. CCNA Routing and Switching 200-125 Certification Guide covers topics included in the latest CCNA exam, along with review and practice questions. This guide introduces you to the structure of IPv4 and IPv6 addresses and examines in detail the creation of IP networks and sub-networks and how to assign addresses in the network. You will then move on to understanding how to configure, verify, and troubleshoot layer 2 and layer 3 protocols. In addition to this, you will discover the functionality, configuration, and troubleshooting of DHCPv4. Combined with router and router simulation practice, this certification guide will help you cover everything you need to know in order to pass the CCNA Routing and Switching 200-125 exam. By the end of this book, you will explore security best practices, as well as get familiar with the protocols that a network administrator can use to monitor the network.
Table of Contents (24 chapters)
4
Subnetting in IPv4
21
Mock Test Questions
22
Assessments

Types of ports

When working with VLANs, you will have to change the ports from their default setting of dynamic auto to either trunk and voice, or access ports. Let's define each of the ports:

  • Trunk ports: This term was forged from the world of telecommunications, which carried multiple telephone communications at the same time. It only seemed proper to call point-to-point communications between switches or switches to routers trunks, since they carry multiple VLANs at the same time. Trunk ports can be 100, 1,000, or 10,000 Mbps and the range of VLANs that they carry is from 1 to 4,094.
  • Voice access ports: Another type of access port, used for IP telephony, one port can have both data and voice, but you must configure the port deliberately for both data and voice. Doing this will allow you to use your PC and phone on the same port. The configuration would look something...