Classify Network Protocols and Communication.

Cisco calls its operating system the Cisco Internetwork Operating System or Cisco IOS.

Basic routing and switching functions

Reliable and secure access to networked resources

Network scalability

Operating system

OS Shell

command-line interface (CLI) or a graphical user interface (GUI) and enables a user to interface with applications.

OS Kernel

communicates directly and manages how hardware resources are used to meet software requirments.

Hardware

The physical part of a computer including underlying electronics

Router user interface

The CIsco IOS software uses a command-line interface (CLI) as the tranditional console environment

Several methods of environment:

Console - a low speed serial connection directly from a computer or terminal

Dialup - connection using a modem or null modem

Telnet - to the router

Purpose of OS

GUI

  • Use mouse to make selections and run programs


  • Enter text and text-based commands

CLI on a Cisco IOS switch or router

  • Use a keyboard to run CLI - based network programs
  • Use a keyboard to enter text and text-based commands

Distinct variations of Cisco IOS

  • IOS for switches, routers, and other Cisco netwrking devices
  • IOS numbered versions for a given Cisco networking devices

Access Methods

1.Console port
2.Secure shell (SSH)
3.Telnet

IOS Modes

  1. User EXEC Mode
    • "view only" mode.
    • can be identified by the ">" prompt
  1. Privileged EXEC Mode
    • require a password from the user before accessing it
    • can be identified by the "#" prompt
  1. Global Configuration mode
    • to enter configuration mode, enter the command configure terminal from privileged mode
    • can be identified by the (config)# prompt following the router name
    • example, when you enter interface configuration submode, the prompt changes to (config-if)# following the router name
    • to exit, just enter end or press Ctrl-Z

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Configuration Example:

  • Router # show running config
  • Router (config )# hostname ‘name'
  • Router (config )# banner motd # ‘banner’
  • Router # copy running config startup config
  • Router (config if)# ip address 192.168.1.1
  • Router (config ) # enable secret class
  • Router (config )# interface vlan 20
  • Router (Config )# interface fa0/1

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Network Media:

  1. What is the maximum distance that the media can successfully carry a signal?
  • When the media is successfull installed.
  1. Into what type of environment will the media be installed?
  • You can use installation media (a USB flash drive or DVD) to install a new copy of Windows, perform a clean installation, or reinstall Windows 10.
  • On that website, you can select a version of Windows and create your own installation media using either a USB flash drive or a DVD.
  1. What is the amount of data and the speed at which it must be transmitted?
  • the amount of data that can be transferred from one point to another within a network in a specific amount of time.
  • expressed as a bitrate and measured in bits per second (bps).
  1. What is the cost of the media and installation?
  • Cost Per Install (CPI) is the price to acquire a new customer from paid advertisements. This metric refers to paid installs in contrast to organic installs.