CCNA Portable Command Guide

All the CCNA-Level commands in one compact and portable resource, updated for recent exam changes.

Scott Empson is the associate chair of the Bachelor of Applied Information Systems Technology degree program at the Northern Alberta Institute of Technology in Edmonton, Alberta, Canada, where he teaches Cisco routing, switching, and network design courses in a variety of different programs (certificate, diploma, and applied degree) at the postsecondary level. Scott is also the program coordinator of the Cisco Networking Academy Program at NAIT, a Regional Academy covering Central and Northern Alberta. He has earned three undergraduate degrees: a Bachelor of Arts, with a major in English; a Bachelor of Education, again with a major in English/Language Arts; and a Bachelor of Applied Information Systems Technology, with a major in Network Management. He currently holds several industry certifications, including CCNP, CCDA, CCAI, and Network+. Before instructing at NAIT, he was a junior/senior high school English/Language Arts/Computer Science teacher at different schools throughout Northern Alberta. Scott lives in Edmonton, Alberta, with his wife, Trina, and two children, Zachariah and Shaelyn, where he enjoys reading, performing music on the weekend with his classic/80s rock band “Miss Understood,” and studying the martial art of Taekwon-Do.

Contents
Introduction	p. xxi
TCP IP Version 4	p. 1
How to Subnet	p. 3
Class A E Addresses	p. 3
Converting Between Decimal Numbers and Binary	p. 4
Subnetting a Class C Network Using Binary	p. 4
Subnetting a Class B Network Using Binary	p. 8
Binary ANDing	p. 12
So Why AND?	p. 14
Shortcuts in Binary ANDing	p. 15
The Enhanced Bob Maneuver for Subnetting	p. 16
VLSM	p. 21
IP Subnet Zero	p. 21
VLSM Example	p. 22
Determine How Many H Bits Will Be Needed to Satisfy the Largest Network	p. 22
Pick a Subnet for the Largest Network to Use	p. 23
Pick the Next Largest Network to Work With	p. 24
Pick the Third Largest Network to Work With	p. 26
Determine Network Numbers for Serial Links	p. 27
Route Summarization	p. 29
Example for Understanding Route Summarization	p. 29
Summarize Winnipeg's Routes	p. 30
Summarize Calgary's Routes	p. 31
Summarize Edmonton's Routes	p. 31
Summarize Vancouver's Routes	p. 32
Route Summarization and Route Flapping	p. 34
Requirements for Route Summarization	p. 34
Introduction to Cisco Devices	p. 35
Cables and Connections	p. 37
Connecting a Rollover Cable to Your Router or Switch	p. 37
Terminal Settings	p. 37
LAN Connections	p. 38
Serial Cable Types	p. 39
Which Cable to Use?	p. 41
568A Versus 568B Cables	p. 42
The Command-Line Interface	p. 45
Shortcuts for Entering Commands	p. 45
Using the Tab Key to Complete Commands	p. 45
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CCNA Portable Command Guide

Summary

Author Biography

Table of Contents

Supplemental Materials