| Overview

Cisco technology is built around the Cisco Internetwork Operating System (IOS), which is the software that controls the routing and switching functions of internetworking devices. A solid understanding of the IOS is essential for a network administrator. This module will present an introduction to the fundamentals of the IOS and will provide practice in examining the features of the IOS. All network configuration tasks, from the most basic to the most complex, require a strong foundation in the basics of router configuration. This module will provide the tools and techniques for basic router configuration that will be used throughout this course. Students completing this module should be able to: Describe the purpose of the IOS Describe the basic operation of the IOS Identify various IOS features Identify the methods to establish a command-line interface (CLI) session with the router Move between the user command executive (EXEC) and privileged EXEC modes Establish a HyperTerminal session on a router Log into a router Use the help feature in the command line interface Troubleshoot command errors