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Installing a NIC

Configuring a Network Client

Configuring TCP/IP

Sharing and Security

Essentials

Troubleshooting Networks

Verify the Symptom

When Did It Happen?

What Has Changed?

Check the Environment

Reproducing the Problem

Isolating the Symptom

Separating Hardware from Software

Research

Make the Fix and Test

OSI Seven-Layer Model

Mike’s Four-Layer Model

Chapter Review

Questions

Answers

Chapter 24 Wireless Networking

Historical/Conceptual

Wireless Networking Components

Essentials

Wireless Networking Software

Wireless Network Modes

Wireless Networking Security

Speed and Range Issues

Wireless Networking Standards

IEEE 802.11-Based Wireless Networking

Other Wireless Standards

Practical Application

Installing and Configuring Wireless Networking

Wi-Fi

Bluetooth Configuration

Cellular Configuration

Troubleshooting Wi-Fi

Hardware Troubleshooting

Software Troubleshooting

Connectivity Troubleshooting

Configuration Troubleshooting

Chapter Review

Questions

Answers

Chapter 25 The Internet

Historical/Conceptual

How the Internet Works

Internet Tiers

TCP/IP—The Common Language of the Internet

Internet Service Providers

Connection Concepts

Essentials

Connecting to the Internet

Dial-up

DSL

Cable

LAN

Wireless

Satellite

Windows Internet Connection Sharing

Hardware Connection Sharing

Internet Software Tools

The World Wide Web

E-mail

Newsgroups

File Transfer Protocol (FTP)

Telnet and SSH

Voice over IP

Terminal Emulation

Virtual Private Networks

PPTP VPNs

Beyond A+

Online Gaming

Chatting

File Sharing

Chapter Review

Questions

Answers

Chapter 26 Securing Computers

Analyzing Threats

Historical/Conceptual

Unauthorized Access

Social Engineering

Data Destruction

Administrative Access

System Crash/Hardware Failure

Essential/Practical Application

Physical Theft

Virus/Spyware

Security Concepts and Technologies

Access Control

Data Classification and Compliance

Reporting

Network Security

Malicious Software

Virus Prevention and Recovery

Firewalls

Authentication and Encryption

Wireless Issues

Chapter Review

Questions

Answers

Chapter 27 The Complete PC Tech

Essentials

How Computers Work

Troubleshooting Theory

Identify the Problem

Establish a Theory of Probable Cause (Question the Obvious)

Test the Theory to Determine Cause

Verify and Prevent

Document Findings, Actions, and Outcomes

Tech Toolkit

Utilities

Field Replaceable Units (FRUs)

Chapter Review

Questions

Answers

Appendix A Mapping to the CompTIA A+ Objectives

CompTIA A+ Essentials Objectives Map

CompTIA A+ Practical Application Objectives Map

Appendix B About the CD-ROM

System Requirements

Installing and Running Total Tester

About Total Tester

Accessing the eBook, CompTIA A+ Acronyms List, and CompTIA A+ Exam Objectives

Shareware and Freeware

LearnKey Video Training

Technical Support

LearnKey Technical Support

Glossary

Index

ACKNOWLEDGMENTS

Scott Jernigan, my Editor-in-Chief at Total Seminars and boon companion on many an evening, worked his usual magic pulling together this latest edition. My thanks, amigo!

My acquisitions editor, Tim Green, kept me on target to get this book done. Seriously. Who else could motivate me to work on the book while on vacation in Key West, Florida? The sun, the surf, the silliness…all dashed away by a phone call. But I’m not bitter, just happy the book is done and Tim will quit yelling at me.

To Chris Crayton. You went so far beyond the call of technical editor that you should have your very own unique title, like über technical editor king! Thank you for helping make this book happen.

To Ed Dinovo. Your contributions of words and ideas helped build this book into a much better work than it could have been without you. Thank you very much.

To Alec Fehl. You did an outstanding job on this new book, and it is always a pleasure working with you.

My in-house photographer and fellow geek, Michael Smyer, contributed