CompTIA A+ Complete Study Guide A+ Essentials 220-601 Exam ObjectivesDomain 1.0 Personal Computer Components 1.1 Identify the fundamental principles of using personal computers 1 1.2 In
Trang 1CompTIA A+ Complete Study Guide A+ Essentials (220-601) Exam Objectives
Domain 1.0 Personal Computer Components
1.1 Identify the fundamental principles of using personal computers 1 1.2 Install, configure, optimize and upgrade personal computer components 2 1.3 Identify tools, diagnostic procedures and troubleshooting techniques for personal computer components 2 1.4 Perform preventative maintenance on personal computer components 2
Domain 2.0 Laptops and Portable Devices
2.1 Identify the fundamental principles of using laptops and portable devices 3 2.2 Install, configure, optimize and upgrade laptops and portable devices 3 2.3 Identify tools, basic diagnostic procedures and troubleshooting techniques for laptops and portable devices 3 2.4 Perform preventative maintenance on laptops and portable devices 3
Domain 3.0 Operating Systems
3.3 Identify tools, diagnostic procedures and troubleshooting techniques for operating systems 6
Domain 4.0 Printers and Scanners
4.1 Identify the fundamental principles of using printers and scanners 7 4.2 Identify basic concepts of installing, configuring, optimizing and upgrading printers and scanners 7 4.3 Identify tools, basic diagnostic procedures and troubleshooting techniques for printers and scanners 7
Domain 5.0 Networks
5.3 Identify tools, diagnostic procedures and troubleshooting techniques for networks 8
Domain 6.0 Security
6.3 Identify tool, diagnostic procedures and troubleshooting techniques for security 9
Domain 7.0 Safety and Environmental Issues
7.1 Describe the aspects and importance of safety and environmental issues 10 4830bperf.fm Page 1 Thursday, March 8, 2007 10:03 AM
Trang 2Exam objectives are subject to change at any time without prior notice and at CompTIA’s sole discretion Please visit CompTIA’s web site ( www.comptia.org ) for the most current listing of exam objectives.
7.2 Identify potential hazards and implement proper safety procedures including ESD precautions and
procedures, safe work environment and equipment handling
10
7.3 Identify proper disposal procedures for batteries, display devices and chemical solvents and cans 10
Domain 8.0 Professionalism and Communication
8.1 Use good communication skills including listening and tact / discretion, when communicating with
customers and colleagues
11
8.2 Use job-related professional behavior including notation of privacy, confidentiality and respect for the
customer and customers’ property
11
A+ IT Technician (220-602) Exam Objectives
Domain 1.0 Personal Computer Components
1.1 Install, configure, optimize and upgrade personal computer components 12 1.2 Identify tools, diagnostic procedures and troubleshooting techniques for personal computer components 12 1.3 Perform preventative maintenance of personal computer components 12
Domain 2.0 Laptops and Portable Devices
2.1 Identify fundamental principles of using laptops and portable devices 13 2.2 Install, configure, optimize and upgrade laptops and portable devices 13 2.3 Use tools, diagnostic procedures and troubleshooting techniques for laptops and portable devices 13
Domain 3.0 Operating Systems
3.3 Identify tools, diagnostic procedures and troubleshooting techniques for operating systems 14
Domain 4.0 Printers and Scanners
4.1 Identify the fundamental principles of using printers and scanners 15 4.2 Install, configure, optimize and upgrade printers and scanners 15 4.3 Identify tools and diagnostic procedures to troubleshooting printers and scanners 15
Domain 5.0 Networks
5.3 Use tools and diagnostic procedures to troubleshoot network problems 16 5.4 Perform preventative maintenance of networks including securing and protecting network cabling 16 4830bperf.fm Page 2 Thursday, March 8, 2007 10:03 AM
Trang 3Domain 6.0 Security
6.3 Identify tool, diagnostic procedures and troubleshooting techniques for security 17
Domain 7.0 Safety and Environmental Issues
7.1 Identify potential hazards and proper safety procedures including power supply, display devices and
environment (e.g trip, liquid, situational, atmospheric hazards and high-voltage and moving equipment)
10
Domain 8.0 Professionalism and Communication
8.1 Use good communication skills including listening and tact / discretion, when communicating with
customers and colleagues
11
8.2 Use job-related professional behavior including notation of privacy, confidentiality and respect for the
customer and customers’ property
11
A+ Remote Support Technician (220-603) Exam Objectives
Domain 1.0 Personal Computer Components
1.1 Install, configure, optimize, and upgrade personal computer components 12 1.2 Identify tools, diagnostic procedures, and troubleshooting techniques for personal computer components 12 1.3 Perform preventative maintenance on personal computer components 12
Domain 2.0 Operating Systems
2.1 Identify the fundamental principles of using operating systems 14
2.3 Identify tools, diagnostic procedures and troubleshooting techniques for operating systems 14
Domain 3.0 Printers and Scanners
3.1 Identify the fundamental principles of using printers and scanners 15 3.2 Install, configure, optimize and upgrade printers and scanners 15 3.3 Identify tools, diagnostic procedures and troubleshooting techniques for printers and scanners 15
Domain 4.0 Networks
4.3 Identify tools, diagnostic procedures and troubleshooting techniques for networks 16 4830bperf.fm Page 3 Thursday, March 8, 2007 10:03 AM
Trang 4Exam objectives are subject to change at any time without prior notice and at CompTIA’s sole discretion Please visit CompTIA’s web site ( www.comptia.org ) for the most current listing of exam objectives.
Domain 5.0 Security
5.3 Identify tools, diagnostic procedures and troubleshooting techniques for security issues 17
Domain 6.0 Professionalism and Communication
6.1 Use good communication skills, including listening and tact / discretion, when communicating with
customers and colleagues
11
6.2 Use job-related professional behavior including notation of privacy, confidentiality and respect for the
customer and customers’ property
11
A+ Depot Technician (220-604) Exam Objectives
Domain 1.0 Personal Computer Components
1.1 Install, configure, optimize and upgrade personal computer components 12 1.2 Identify tools, diagnostic procedures and troubleshooting techniques for personal computer components 12 1.3 Perform preventative maintenance of personal computer components 12
Domain 2.0 Laptop and Portable Devices
2.1 Identify the fundamental principles of using laptops and portable devices 13 2.2 Install, configure, optimize and upgrade laptops and portable devices 13 2.3 Identify tools, diagnostic procedures and troubleshooting techniques for laptops and portable devices 13
Domain 3.0 Printers and Scanners
3.1 Identify the fundamental principles of using printers and scanners 15 3.2 Install, configure, optimize and upgrade printers and scanners 15 3.3 Identify tools, diagnostic methods and troubleshooting procedures for printers and scanners 15 3.4 Perform preventative maintenance of printer and scanner problems 15
Domain 4.0 Security
4.1 Identify the names, purposes and characteristics of physical security devices and processes 17
Domain 5.0 Safety and Environmental Issues
5.1 Identify potential hazards & proper safety procedures including power supply, display devices and
environment (e.g trip, liquid, situational, atmospheric hazards, high-voltage and moving equipment)
10 4830bperf.fm Page 4 Thursday, March 8, 2007 10:03 AM
Trang 64830ffirs.fm Page ii Thursday, August 23, 2007 5:28 PM
Trang 7Wiley Publishing, Inc.
Complete
Study Guide
Quentin Docter Emmett Dulaney Toby Skandier4830ffirs.fm Page iii Thursday, August 23, 2007 5:28 PM
Trang 8Acquisitions and Development Editor: Jeff Kellum
Technical Editors: Neil Hester and Mike Harwood
Production Editor: Daria Meoli
Copy Editor: Linda Recktenwald
Production Manager: Tim Tate
Vice President and Executive Group Publisher: Richard Swadley
Vice President and Executive Publisher: Joseph B Wikert
Vice President and Publisher: Neil Edde
Media Development Specialist: Angela Denny
Book Designer: Judy Fung
Compositor: Craig Woods, Happenstance Type-O-Rama
Proofreader: James Brook, Word One
Indexer: Ted Laux
Anniversary Logo Design: Richard Pacifico
Cover Designer: Margaret Rowlands
Copyright © 2007 by Wiley Publishing, Inc., Indianapolis, Indiana
Published simultaneously in Canada
be addressed to the Legal Department, Wiley Publishing, Inc., 10475 Crosspoint Blvd., Indianapolis, IN 46256, (317) 572-3447, fax (317) 572-4355, or online at http://www.wiley.com/go/permissions.
Limit of Liability/Disclaimer of Warranty: The publisher and the author make no representations or warranties with respect to the accuracy or completeness of the contents of this work and specifically disclaim all warranties, including without limitation warranties of fitness for a particular purpose No warranty may be created or extended by sales
or promotional materials The advice and strategies contained herein may not be suitable for every situation This work is sold with the understanding that the publisher is not engaged in rendering legal, accounting, or other pro- fessional services If professional assistance is required, the services of a competent professional person should be sought Neither the publisher nor the author shall be liable for damages arising herefrom The fact that an organi- zation or Website is referred to in this work as a citation and/or a potential source of further information does not mean that the author or the publisher endorses the information the organization or Website may provide or recom- mendations it may make Further, readers should be aware that Internet Websites listed in this work may have changed or disappeared between when this work was written and when it is read.
For general information on our other products and services or to obtain technical support, please contact our Customer Care Department within the U.S at (800) 762-2974, outside the U.S at (317) 572-3993 or fax (317) 572-4002 Wiley also publishes its books in a variety of electronic formats Some content that appears in print may not be available in electronic books.
Library of Congress Cataloging-in-Publication Data is available from the publisher.
TRADEMARKS: Wiley, the Wiley logo, and the Sybex logo are trademarks or registered trademarks of John Wiley & Sons, Inc and/or its affiliates, in the United States and other countries, and may not be used without written permission CompTIA and A+ are registered trademarks of The Computing Technology Industry Association, Inc All other trademarks are the property of their respective owners Wiley Publishing, Inc., is not associated with any product or vendor mentioned in this book.
10 9 8 7 6 5 4 3 2
4830ffirs.fm Page iv Thursday, August 23, 2007 5:28 PM
Trang 9The logo of the CompTIA Authorized Quality Curriculum (CAQC) program and the status of this or other training material as “Authorized” under the CompTIA Authorized Quality Curriculum program signifies that, in CompTIA’s opinion, such training material covers the content of the CompTIA’s related certification exam CompTIA has not reviewed or approved the accuracy of the contents of this training material and specifically disclaims any warranties of merchantability or fitness for a particular purpose CompTIA makes no guarantee concerning the success of persons using any such “Authorized” or other training material in order to prepare for any CompTIA certification exam The contents of this training material were created for the CompTIA A+ exams covering CompTIA certification objectives that were current as of 2006.
How to become CompTIA certified:
This training material can help you prepare for and pass a related CompTIA certification exam or exams In order to achieve CompTIA certification, you must register for and pass
a CompTIA certification exam or exams
In order to become CompTIA certified, you must:
http://www.comptia.org/certification/general_information/exam_locations.aspx
convenient location
www.comptia.org/certification/general_information/candidate_
For more information about CompTIA’s certifications, such as its industry acceptance,
CompTIA is a not-for-profit trade information technology (IT) trade association CompTIA’s certifications are designed by subject matter experts from across the IT industry Each CompTIA certification is vendor-neutral, covers multiple technologies and requires demonstration of skills and knowledge widely sought after by the IT industry
To contact CompTIA with any questions or comments, please call 630-678-8300 or email
4830ffirs.fm Page v Thursday, August 23, 2007 5:28 PM
Trang 10To Our Valued Readers:
Thank you for looking to Sybex for your CompTIA A+ exam prep needs We at Sybex are proud
of our reputation for providing certification candidates with the practical knowledge and skills needed to succeed in the highly competitive IT marketplace Certification candidates have come
to rely on Sybex for accurate and accessible instruction on today’s crucial technologies and business skills
Just as CompTIA is committed to establishing measurable standards for certifying A+ cians, Sybex is committed to providing those individuals with the knowledge needed to meet those standards
Complete Study Guide you hold in your hands is comprehensive, in-depth, and cally sound We’re confident that this book will exceed the demanding standards of the certification marketplace and help you, the A+ candidate, succeed in your endeavors
pedagogi-As always, your feedback is important to us If you believe you’ve identified an error in the book,
striving to meet the needs of individuals preparing for certification exams
Good luck in pursuit of your A+ certification!
Neil EddeVice President & PublisherSybex, an Imprint of Wiley4830ffirs.fm Page vi Thursday, August 23, 2007 5:28 PM
Trang 11To Kara, Abbie, and Lauren—Quentin Docter
For Karen—Emmett Dulaney
For my wife, Karen Your support continues to amaze me None of this would be possible without you 143—Toby Skandier
4830ffirs.fm Page vii Thursday, August 23, 2007 5:28 PM
Trang 12It continues to amaze me how many people and how much time it takes to create a book of this scope and size From beginning to end, there are scores of dedicated professionals focused
on delivering the best book possible to you the readers
First, I need to thank my co-authors Emmett Dulaney and Toby Skandier, as they did a tremendous job while being under a serious time crunch Now on to the rest of the team Jeff Kellum kept us on track and moving forward, which was a challenge at times Daria Meoli kept us organized, which is no small feat during writing I owe special gratitude to Tech Editor Neil Hester, who kept me on my toes and made excellent suggestions Copy Editors Linda Recktenwald and Sharon Wilkey provided their usual clairvoyance, and saved me from butchering the English language Many thanks also go out to the proofreader (James Brook), indexer (Ted Laux), and compositor (Craig Woods) Without their great contributions this book would not have made it to your hands
—Quentin Docter
There are a great many people to thank but three are key; without them this book would not be possible First and foremost is Jeff Kellum of Sybex, who does his job extremely well and pulls you along with him Thanks must also go to David Groth for his excellent work on the previous edition I also thank the Production Editor (Daria Meoli); the Technical Editor (Neil Hester); and the Copy Editor (Linda Recktenwald) Without their hard work, I would have never completed this book
—Emmett Dulaney
I would like to thank my Acquisitions and Development Editor, Jeff Kellum Jeff has a knack for matching me to the most interesting and challenging projects that enhance my knowledge and proficiency in my area of expertise and then keeping me on track with them.I’m indebted to my Technical Editor, Neil Hester, for catching some of the most detailed tech-nical issues This book is vastly more solid for his vigilance My Production Editor, Daria Meoli, and Copy Editor, Linda Recktenwald, have my deepest gratitude for repairing those things in which I am most certainly not expert
In addition, I’d like to thank the proofreader (James Brook), indexer (Ted Laux), typesetter (Craig Woods), and CD developers (Angela Denny and Kit Malone)
Thank you to my Embarq Corporation management team and associates for the support and challenges you continue to offer
Finally, thank you to my incredible kids, Toby, Tiffani, Trey, and Taylor You guys support and encourage your dad through your own hard work and determination You’re always in
my thoughts and plans
—Toby Skandier
4830ffirs.fm Page viii Thursday, August 23, 2007 5:28 PM
Trang 13Contents at a Glance
Chapter 1 Identifying Personal Computer Components 1
Chapter 2 Effectively Working with Personal Computer Components 97
Chapter 3 Understanding Laptops and Portable Devices 139
Chapter 4 Understanding Operating Systems 181
Chapter 5 Understanding Basics of Installing, Configuring,
Optimizing, and Upgrading Operating Systems 249
Chapter 6 Identifying Operating System Troubleshooting and
Chapter 7 Understanding the Basics of Printers and Scanners 357
Chapter 8 Networking Fundamentals 423
Chapter 9 Understanding Network Security Fundamentals 483
Chapter 10 Identifying Safety and Environmental Issues 523
Chapter 11 Understanding Professionalism and Communication 563
Chapter 12 Working with Personal Computer Components 583
Chapter 13 Working with Laptops and Portable Devices 631
Chapter 14 Installing, Configuring, Optimizing, and Upgrading
Chapter 15 Installing, Configuring, Optimizing, and Upgrading
Chapter 16 Installing, Configuring, Optimizing, and Upgrading
Trang 144830ffirs.fm Page x Thursday, August 23, 2007 5:28 PM
Trang 15Chapter 1 Identifying Personal Computer Components 1
Identifying Components of Motherboards 4
Identifying Purposes and Characteristics of Processors 27Identifying Purposes and Characteristics of Memory 30DRAM 32SRAM 34ROM 35CMOS 35
Identifying Purposes and Characteristics of Storage Devices 38
Identifying Purposes and Characteristics of Power Supplies 47Floppy Drive Power Connectors 48
Standard Peripheral Power Connector 50
Identifying Purposes and Characteristics of Display Devices 53
Monitors 60Liquid Crystal Displays (LCDs) 61
Mouse 63Keyboard 64
Trang 16Common Peripheral Interfaces and Cables 76Identifying Purposes and Characteristics of Cooling Systems 84Fans 85
Chapter 2 Effectively Working with Personal Computer
Installing, Configuring, and Optimizing PC Components 99
Upgrading Input/Multimedia Devices 107Identifying Tools and Diagnostics for PC Components 107
Basic Aspects of Troubleshooting 115
Recognizing and Isolating Issues 118Applying Basic Troubleshooting Techniques 119Performing Preventative Maintenance on Personal Computers 129Summary 131
Chapter 3 Laptops and Portable Devices 139
Understanding Laptop Architecture 142
4831xftoc.fm Page xii Wednesday, September 13, 2006 9:07 AM
Trang 17Contents xiii
Memory 145Storage 147Displays 149
Removing Laptop-Specific Hardware 168Troubleshooting and Performing Preventative Maintenance
Performing Preventative Maintenance 172Summary 174
Chapter 4 Understanding Operating Systems 181
Understanding Operating Systems 184Operating System Terms and Concepts 185
Alternative Operating Systems 191
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Trang 18xiv Contents
Chapter 5 Understanding Basics of Installing, Configuring,
Optimizing, and Upgrading Operating Systems 249
Basic Procedure for Device Installation 282Windows Version-Specific Installation Items 283Optimizing Windows 2000 and Windows XP 286
Summary 296
Chapter 6 Identifying Operating System Troubleshooting
and Diagnostic Procedures 305
Step 1: Talk to the Customer 308
Step 3: Eliminate Possibilities 309Step 4: Evaluate Your Results 310
Identifying Important Files in Windows 2000/XP 312Understanding the Windows 2000/XP Boot Process 313
Creating Boot Disks or an Emergency Repair Disk 317Identifying Windows
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Trang 19Contents xv
Troubleshooting Other Common Problems 322Understanding Windows Reporting 325Identifying Windows-Based Troubleshooting Utilities 326
Identifying Diagnostic Resources 334
Performing Preventative Maintenance on Operating Systems 336
Summary 347
Chapter 7 Understanding the Basics of Printers
Laser and Page Printer Problems 404
Trang 20xvi Contents
Chapter 8 Networking Fundamentals 423
Understanding Networking Principles 425Understanding Networking Fundamentals 426Identifying Common Network Media 449Understanding Networking Components 460Installing, Configuring, and Troubleshooting Networks 463Installing and Configuring Network Interface Cards 463Obtaining Wired and Wireless Internet Connections 464Troubleshooting Network Interface Cards 475Summary 475
Chapter 9 Understanding Network Security Fundamentals 483
Working with Hardware and Software Security 491Understanding Wireless Security 498Understanding Data and Physical Security 501
Chapter 10 Identifying Safety and Environmental Issues 523
Understanding Safety and Environmental Issues 525Identifying Potential Safety Hazards 526Identifying Environmental Concerns 532
Using Appropriate Repair Tools 542
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Trang 21Contents xvii
Applying Proper Safety and Disposal Procedures 545Preventing Electrostatic Discharge (ESD) 546Working in a Safe Environment 549
Chapter 11 Understanding Professionalism and
Communication 563
Using Good Communication Skills 566Elicit Problem Symptoms from Customers 569Have the Customer Reproduce the Error 569
Use the Collected Information 570
Punctuality 570
Flexibility 572Confidentiality 572Respect 572Privacy 575
Summary 576
Chapter 12 Working with Personal Computer Components 583
Removing, Installing, and Configuring Components 587
Trang 22Chapter 13 Laptop and Portable Devices 631
Using Laptops and Portable Devices 634Identifying Applications for Laptop-Specific
Identifying Laptop-Specific Power Requirements 643Understanding LCD Technology 643Removing Devices and Video Sharing 645Removing Laptop-Specific Hardware 646Understanding Video Memory Sharing 648
Identifying Specific Safety Issues 650
Summary 654
Chapter 14 Installing, Configuring, Optimizing, and
Upgrading Operating Systems 663
Managing Disks, Directories, and Files 683
Managing Services, Startup, and Applications 708
Recognizing and Resolving Common Operational Problems and Error Messages 717Using Windows Diagnostic Utilities 7224831xftoc.fm Page xviii Wednesday, September 13, 2006 9:07 AM
Trang 23Chapter 15 Installing, Configuring, Optimizing, and
Upgrading Printers and Scanners 739
Understanding Printer and Scanner Processes 743
Installing, Configuring, Optimizing, and Upgrading
Printer and Scanner Installation Procedures 751
Optimizing Scanner Performance 761Using Printer and Scanner Troubleshooting Tools and
Techniques 764Multi-meter 765Screwdrivers 765
Summary 769
Chapter 16 Installing, Configuring, Optimizing, and
Upgrading Network Systems 777
Identifying Network Protocols and Technologies 781Identifying Network Connectivity Technologies 7874831xftoc.fm Page xix Wednesday, September 13, 2006 9:07 AM
Trang 24xx Contents
Working with Additional Network Components 789
Establishing Network Connectivity 791
Using Network Tools and Diagnostics 797
Troubleshooting Network Issues 799Performing Preventative Network Maintenance 801Summary 802
Chapter 17 Installing, Configuring, Upgrading, and
Optimizing Security Systems 809
Understanding Security Baselines 812
Working with Access Control Lists 820
Hotfixes 828
Patches 829
Trang 25Table of Exercises
Exercise 4.1 Changing a Screensaver 198
Exercise 4.2 Auto-Hiding the Taskbar 199
Exercise 4.3 Starting a Program from the Run Window 204
Exercise 4.4 Viewing System Properties 207
Exercise 4.5 Emptying the Recycle Bin 208
Exercise 4.6 Changing the Time Zone 215
Exercise 4.7 Showing Hidden Files and Folders 225
Exercise 4.8 Searching for a Type of File 234
Exercise 4.9 Using Windows Explorer to Create and Delete Objects 235
Exercise 4.10 Examining File Permissions 239
Exercise 6.1 Making Files Visible in Windows 2000 and Windows XP 311
Exercise 6.2 Using ASR in Windows XP 318
Exercise 6.3 Running CHKDSK in Windows XP 327
Exercise 6.4 Configuring Windows Update in Windows XP 338
Exercise 6.5 Scheduling Backups in Windows XP 340
Exercise 6.6 Creating a Restore Point in Windows XP 344
Exercise 7.1 Identifying the Parts of a Bubble-jet Printer 368
Exercise 7.2 Installing a USB printer 399
Exercise 8.1 Installing a NIC 464
Exercise 9.1 Automated System Recovery in Windows XP 505
Exercise 9.2 Testing Social Engineering 507
Exercise 11.1 Understanding Punctuality 571
Exercise 11.2 Surprise Someone 573
Exercise 12.1 Removing the Motherboard, CPU, Memory, and Adapter Cards 591
Exercise 12.2 Installing the Motherboard, CPU, Memory, and Adapter Cards 592
Exercise 12.3 Removing an Internal Storage Device 595
Exercise 12.4 Installing an Internal Storage Device 596
Exercise 12.5 Removing a Power Supply 600
Exercise 12.6 Adjusting Brightness and Contrast 604
Exercise 12.7 Adjusting Mouse Behavior 608
Exercise 12.8 Installing a CPU Heat Sink 611
Exercise 12.9 Displaying System Resources 618
Exercise 13.1 Removing a Device from Your Laptop 646
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Trang 26xxii Table of Exercises
Exercise 13.2 Removing and Installing Video Memory 649
Exercise 13.3 Removing and Installing Laptop Batteries 651
Exercise 13.4 Cleaning an LCD Display 652
Exercise 14.1 Using the EDIT Program 670
Exercise 14.2 Changing a File Attribute on Windows XP 674
Exercise 14.3 Command-Line Directory Management 676
Exercise 14.4 Seeing What’s Out There with DIR 678
Exercise 14.5 Creating a New Folder 686
Exercise 14.6 Running CHKDSK in Windows XP 689
Exercise 14.7 Stopping and Restarting a Service 691
Exercise 14.8 Creating a Restore Point 699
Exercise 14.9 Optimizing Virtual Memory 706
Exercise 14.10 Rolling Back a Device Driver 719
Exercise 14.11 Configuring Windows Update in Windows XP 727
Exercise 14.12 Scheduling Backups in Windows XP 728
Exercise 15.1 Installing a USB Printer 757
Exercise 15.2 Installing Memory into a Laser Printer 760
Exercise 15.3 Using an Inkjet Cleaning Solution 766
Exercise 16.1 Renew an IP Address on a Windows XP System 798
Exercise 16.2 Renew an IP Address from the Command Line 798
Exercise 17.1 Recovering a Windows XP System 826
Exercise 17.2 Create a Backup with SuSE Linux 826
4830flast.fm Page xxii Thursday, August 23, 2007 5:30 PM
Trang 27Welcome to the CompTIA A+ Complete Study Guide This is the fourth edition of our selling study guide for the A+ certification sponsored by CompTIA (Computing Technology Industry Association)
best-This book was written at an intermediate technical level; we assume that you already know how
to use a personal computer and its basic peripherals, such as modems and printers, but we also recognize that you may be learning how to service some of that computer equipment for the first time The exams cover basic computer service topics as well as some more advanced issues, and they cover some topics that anyone already working as a technician, whether with computers or not, should be familiar with The exams are designed to test you on these topics in order to certify that you have enough knowledge to fix and upgrade some of the most widely used types of personal desktop computers
We’ve included review questions at the end of each chapter to give you a taste of what it’s like to take the exams If you’re already working as a technical service or support technician,
we recommend you check out these questions first to gauge your level of knowledge (You can also take the Assessment Test at the end of this Introduction, which is designed to see how much you already know.)
Don’t just study the questions and answers—the questions on the actual exams will be different from the practice ones included in this book and on the CD The exams are designed to test your knowledge of a concept or objective, so use this book to learn the objective behind the question.You can use the book mainly to fill in the gaps in your current computer service knowledge You may find, as many PC technicians have, that being well versed in all the technical aspects
of the equipment is not enough to provide a satisfactory level of support—you must also have customer-relations skills We include helpful hints to get the customer to help you help them
What Is A+ Certification?
The A+ certification program was developed by the Computer Technology Industry Association (CompTIA) to provide an industry-wide means of certifying the competency of computer service technicians The A+ certification is granted to those who have attained the level of knowledge and troubleshooting skills that are needed to provide capable support in the field of personal comput-ers It is similar to other certifications in the computer industry, such Novell’s Certified Novell Engineer (CNE) program and the Microsoft Certified Systems Engineer (MCSE) program The theory behind these certifications is that if you need to have service performed on any of their prod-ucts, you would sooner call a technician who has been certified in one of the appropriate certification programs than you would just call the first “expert” in the phone book
The A+ certification program was created to offer a wide-ranging certification, in the sense that it is intended to certify competence with personal computers from many different makers/vendors You must pass two tests to become A+ certified:
The A+ Essentials (220-601) exam, which covers basic computer concepts, hardware troubleshooting, soft skills (such as customer service), and hardware upgrading, security, and safety
4830flast.fm Page xxiii Thursday, August 23, 2007 5:30 PM
Trang 28xxiv Introduction
One of three “technician” exams—IT Technician (220-602), Remote Support Technician (220-603), or Depot Technician (220-604)—which cover more of the hands-on aspects of the topics tested on in the Essentials exam
You don’t have to take the Essentials and the technician exams at the same time The A+ certification is not awarded until you’ve passed both tests
Depending on which technician exam you take, your official A+ certificate will state which exam you took
Why Become A+ Certified?
There are several good reasons to get your A+ certification The CompTIA Candidate’s mation packet lists five major benefits:
Infor- It demonstrates proof of professional achievement
It increases your marketability
It provides greater opportunity for advancement in your field
It is increasingly a requirement for some types of advanced training
It raises customer confidence in you and your company’s services
Provides Proof of Professional Achievement
The A+ certification is quickly becoming a status symbol in the computer service industry nizations that include members of the computer service industry are recognizing the benefits of A+ certification and are pushing for their members to become certified And more people every day are putting the “A+ Certified Technician” emblem on their business cards
Orga-Increases Your Marketability
A+ certification makes individuals more marketable to potential employers A+ certified employees also may receive a higher base salary because employers won’t have to spend as much money on vendor-specific training
Provides Opportunity for Advancement
Most raises and advancements are based on performance A+ certified employees work faster and more efficiently, and are thus more productive The more productive employees are, the more money they make for their company And, of course, the more money they make for the company, the more valuable they are to the company So if an employee is A+ certified, their chances of being promoted are greater
4830flast.fm Page xxiv Thursday, August 23, 2007 5:30 PM
Trang 29Introduction xxv
Fulfills Training Requirements
A+ certification is recognized by most major computer hardware vendors Some of these vendors apply A+ certification toward prerequisites in their own respective certification programs, which has the side benefit of reducing training costs for employers
Raises Customer Confidence
As the A+ Certified Technician moniker becomes more well known among computer owners, more of them will realize that the A+ technician is more qualified to work on their computer equipment than a noncertified technician is
How to Become A+ Certified
A+ certification is available to anyone who passes the tests You don’t have to work for any particular company It’s not a secret society It is, however, an elite group To become A+ certified, you must do two things:
Pass the A+ Essentials exam
Pass the one of the three A+ technician exams: IT Technician, Remote Support Technician, Depot Technician exam
If you already have your A+ certification and wish to upgrade, CompTIA
is allowing you to only take one of the three technician exams to upgrade you certification.
The exams can be taken at any Thompson Prometric or Pearson VUE testing center If you pass both exams, you will get a certificate in the mail from CompTIA saying that you have passed, and you will also receive a lapel pin and business card
To register for the tests, call Thompson Prometric at (800) 77-MICRO (776-4276) or
register online at http://www.2test.com For Pearson VUE, call (877) 551-PLUS (7587) or go
to http://www.vue.com You’ll be asked for your name, Social Security Number (an optional number may be assigned if you don’t wish to provide your Social Security Number), mailing address, phone number, employer, when and where you want to take the test, and your credit card number (arrangement for payment must be made at the time of registration)
What Is an ASC?
More service companies are becoming CompTIA A+ Authorized Service Centers (ASCs) This means that over 50 percent of the technicians employed by that service center are A+ certified Customers and vendors alike recognize that ASCs employ the most qualified service technicians As a result, an ASC gets more business than a nonauthorized service center And, because more service centers want to reach the AASC level, they will give pref- erence in hiring to a candidate who is A+ certified over one who is not.
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Although you can save money by arranging to take more than one test at the same seating, there are no other discounts If you have to take a test more than once in order to get a passing grade, you must pay both times.
Who Should Buy This Book?
If you are one of the many people who want to pass the A+ exams, and pass them confidently,
then you should buy this book and use it to study for the exams The A+ Essentials exam is
designed to measure essential competencies for an entry-level technician The technician
exams are intended to certify that the exam candidate has the necessary skills to work on
microcomputer hardware and typically has at least six months of on-the-job experience
This book was written with one goal in mind: to prepare you for the challenges of the real
IT world, not just to pass the A+ exams This study guide will do that by describing in detail
the concepts on which you’ll be tested
How to Use This Book and CD
We’ve included several testing features throughout the book and on the CD-ROM At the
begin-ning of the book (right after this introduction) is an assessment test for each that you can use to
check your readiness for the actual exams Take both of these exams before you begin reading the
book Doing so will help you determine the areas you may need to brush up on The answers to
each assessment test appear on a separate page after the last question of the test Each answer also
includes an explanation and a note telling you the chapter in which this material appears
To test your knowledge as you progress through the book, there are review questions at the
end of each chapter As you finish each chapter, answer the review questions and then check
your answers—the correct answers appear on the page following the last review question You
can go back to reread the section that deals with each question you got wrong to ensure that
you answer correctly the next time you are tested on the material You’ll also find flash-card
questions You can use these handy question for on-the-go review Download them right onto
your Palm or handheld device for quick and convenient reviewing
In addition to the assessment test and the chapter review question, you’ll find sample exams
for each of the A+ exams Take these practice exams just as if you were actually taking the A+
exams (without any reference material)
Depending on what edition of the book you have, either the Standard or the Deluxe Edition, you will have either eight exams (two each for the 4 A+ tests) or
12 (three each) In the Deluxe Edition, we’ve also included a second CD, which contains a series of instructional videos with author Emmett Dulaney These videos show Emmett performing a number of hands-on tasks and processes you need to be familiar with as a CompTIA A+ technician.
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If you are going to travel but still need to study for the A+ exams, and you have a laptop
with a CD-ROM drive, you can take this entire book with you just by taking the CD-ROM
This book is in PDF (Adobe Acrobat) format so it can be easily read on any computer
The Exam Objectives
Behind every computer industry exam you can be sure to find exam objectives—the broad topics
in which the exam developers want to ensure your competency
As mentioned previously, two tests are required to become A+ certified: the Essentials
exam and one of three technician exams In the following sections, we have listed the
official CompTIA exam objectives However, we want to point out that you will notice a
lot of overlap between the technician objectives CompTIA has made an effort to target
specific job roles with their A+ certification A number of the tasks in these job roles are
similar, thus the overlap
I’m Studying For Is This Book For Me?
You may have noticed that the exam objectives for the three Technician exams look very similar
In fact, they are word for word CompTIA did this intentionally Because the exams are now
job-role based, during their Job Task Analysis, they discovered that a number of the tasks that, say,
a Remote Tech might perform are the same as what an IT or Depot Tech would perform
How-ever, the percentages are the same.
Because it was not logical to release four versions of the book, or make this book into four
parts, each focusing on one of the four A+ exams, we decided to cover all three technician
exams in one However, we have included a very handy tear-out card that maps to each
of the exam objectives In it, you will see which chapters cover which exams, and more
specifically, which objectives.
In addition, we have included bonus exams for each of the four A+ tests, using the same
percentages they use For instance, roughly 18 percent of the IT Tech bonus exams deal
with operating systems, whereas 45 percent of the questions in the Depot Tech exams are on
operating system.
So the answer to your question is yes.
Minimum System Requirements
You should have a minimum of 45MB of disk space, as well as Windows 98 or higher, to use
the Sybex Test Engine You will also need Adobe Acrobat Reader (included).
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Exam objectives are subject to change at any time without prior notice and at CompTIA’s sole discretion Please visit the A+ Certification page of CompTIA’s
most current listing of exam objectives.
The A+ Essentials Exam Objectives
The A+ Essentials exam is designed for candidate with at least 500 hours of hands-on
experience It expects you to understand how to installing, building, upgrading, repairing,
configuring, troubleshooting, optimizing, diagnosing, and performing preventative
main-tenance of basic personal computer hardware and operating systems
The following are the areas (or domains, according to CompTIA) in which you must be
proficient in order to pass the A+ Essentials:
Domain 1: Personal Computer Components 21%
Domain 2: Laptop and Portable Devices 11%
Domain 3: Operating Systems 21%
Domain 4: Printers and Scanners 9%
Domain 7: Safety and Environmental Issues 10%
Domain 8: Communication and Professionalism 5%
Domain 1: Installation, Configuration, and Upgrading
1.1 Identify the fundamental principles of using personal computers
Identify the names, purposes and characteristics of storage devices
CD / DVD / RW (e.g drive speeds, media types)
Removable storage (e.g tape drive, solid state such as thumb drive, flash and SD cards,
USB, external CD-RW and hard drive) Identify the names, purposes and characteristics of motherboards
Form Factor (e.g ATX / BTX, micro ATX / NLX)
Trang 33BIOS / CMOS / Firmware
Riser card / daughter board
Identify the names, purposes and characteristics of power supplies, for example:
AC adapter, ATX, proprietary, voltage
Identify the names purposes and characteristics of processor / CPUs
CPU chips (e.g AMD, Intel)
Types of memory (e.g DRAM, SRAM, SDRAM, DDR / DDR2, RAMBUS)
Connector types (e.g VGA, DVI / HDMi, S-Video, Component / RGB)
Settings (e.g V-hold, refresh rate, resolution)
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Identify the names, purposes and characteristics of input devices for example: mouse, keyboard, bar code reader, multimedia (e.g web and digital cameras, MIDI, microphones), biometric devices, touch screen
Identify the names, purposes and characteristics of adapter cards
Video including PCI / PCI-E and AGP
Multimedia
I / O (SCSI, serial, USB, Parallel)
Communications including network and modem
Identify the names, purposes and characteristics of pots and cables for example: USB 1.1 and 2.0, parallel, serial, IEEE 1394 / firewire, RJ45 and RJ11, PS2 / MINI-DIN, centronics (e.g mini, 36) multimedia (e.g 1 / 8 connector, MIDSI COAX, SPDIF)
Identify the names, purposes and characteristics of cooling systems for example heat sinks, CPU and case fans, liquid cooling systems, thermal compound
1.2 Install, configure, optimize and upgrade personal computer components
Add, remove and configure internal and external storage devices
Drive preparation of internal storage devices including format / file systems and imaging technology
Install display devices
Add, remove and configure basic input and multimedia devices
1.3 Identify tools, diagnostic procedures and troubleshooting techniques for personal computer components
Recognize the basic aspects of troubleshooting theory for example:
Perform backups before making changes
Assess a problem systematically and divide large problems into smaller components to
be analyzed individually
Verify even the obvious, determine whether the problem is something simple and make
no assumptions
Research ideas and establish priorities
Document findings, actions and outcomes
Identify and apply basic diagnostic procedures and troubleshooting techniques for example:
Identify the problem including questioning user and identifying user changes to
computer
Analyze the problem including potential causes and make an initial determination of software and / or hardware problems
Trang 35Document activities and outcomes
Recognize and isolate issues with display, power, basic input devices, storage, memory, thermal, POST errors (e.g BIOS, hardware)
Apply basic troubleshooting techniques to check for problems (e.g thermal issues, error codes, power, connections including cables and / or pins, compatibility, functionality, software / drivers ) with components for example:
1.4 Perform preventative maintenance on personal computer components
Identify and apply basic aspects of preventative maintenance theory for example:
Visual / audio inspection
Driver / firmware updates
Scheduling preventative maintenance
Use of appropriate repair tools and cleaning materials
Ensuring proper environment
Identify and apply common preventative maintenance techniques for devices such as input devices and batteries
Domain 2: Laptops and Portable Devices
2.1 Identify the fundamental principles of using laptops and portable devices
Identify names, purposes and characteristics of laptop-specific:
Form factors such as memory and hard drives
Peripherals (e.g docking station, port replicator and media / accessory bay)
Expansion slots (e.g PCMCIA I, II and III, card and express bus)
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Ports (e.g mini PCI slot)
Communication connections (e.g Bluetooth, infrared, cellular WAN, Ethernet)
Power and electrical input devices (e.g auto-switching and fixed-input power supplies, batteries)
LCD technologies (e.g active and passive matrix, resolution such as XGA, SXGA+, UXGA, WUXGA, contrast radio, native resolution)
Input devices (e.g stylus / digitizer, function (Fn) keys and pointing devices such as touch pad, point stick / track point)
Identify and distinguish between mobile and desktop motherboards and processors including throttling, power management and WiFi
2.2 Install, configure, optimize and upgrade laptops and portable devices
Configure power management
Identify the features of BIOS-ACPI
Identify the difference between suspend, hibernate and standby
Demonstrate safe removal of laptop-specific hardware such as peripherals,
hot-swappable devices and non-hot-hot-swappable devices
2.3 Identify tools, basic diagnostic procedures and troubleshooting techniques for laptops and portable devices
Use procedures and techniques to diagnose power conditions, video, keyboard, pointer and wireless card issues, for example:
Verify AC power (e.g LEDs, swap AC adapter)
Verify DC power
Remove unneeded peripherals
Plug in external monitor
Toggle Fn keys
Check LCD cutoff switch
Verify backlight functionality and pixilation
Stylus issues (e.g digitizer problems)
Unique laptop keypad issues
Antenna wires
2.4 Perform preventative maintenance on laptops and portable devices
Identify and apply common preventative maintenance techniques for laptops and
portable devices, for example: cooling devices, hardware and video cleaning materials, operating environments including temperature and air quality, storage, transportation and shipping
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Domain 3: Operating Systems
3.1 Identify the fundamentals of using operating systems
Identify differences between operating systems (e.g Mac, Windows, Linux) and describe operating system revision levels including GUI, system requirements, application and hardware compatibility
Identify names, purposes and characteristics of the primary operating system components including registry, virtual memory and file system
Describe features of operating system interfaces, for example:
Registry data files
Identify concepts and procedures for creating, viewing, managing disks, directories and files in operating systems for example:
Disks (e.g active, primary, extended and logical partitions)
File systems (e.g FAT 32, NTFS)
Directory structures (e.g create folders, navigate directory structures)
Files (e.g creation, extensions, attributes, permissions)
3.2 Install, configure, optimize and upgrade operating systems
Identify procedures for installing operating systems including:
Verification of hardware compatibility and minimum requirements
Installation methods (e.g boot media such as CD, floppy or USB, network installation, drive imaging)
Operating system installation options (e.g attended / unattended, file system type, network configuration)
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Disk preparation order (e.g start installation, partition and format drive)
Device driver configuration (e.g install and upload device drivers)
Verification of installation
Identify procedures for upgrading operating systems including:
Upgrade considerations (e.g hardware, application and / or network compatibility)
Implementation (e.g backup data, install additional Windows components)
Install / add a device including loading, adding device drivers and required software including:
Determine whether permissions are adequate for performing the task
Device driver installation (e.g automated and / or manual search and installation of device drivers)
Using unsigned drivers (e.g driver signing)
Verify installation of the driver (e.g device manager and functionality)
Identify procedures and utilities used to optimize operating systems for example, virtual memory, hard drives, temporary files, service, startup and applications
3.3 Identify tools, diagnostic procedures and troubleshooting techniques for operating systems
Identify basic boot sequences, methods and utilities for recovering operating systems
Boot methods (e.g safe mode, recovery console, boot to restore point)
Automated System Recovery (ASR) (e.g Emergency Repair Disk (ERD))
Identify and apply diagnostic procedures and troubleshooting techniques for example:
Identify the problem by questioning the user and identifying user changes to the computer
Analyze problem including potential causes and initial determination of software and / or hardware problem
Test related components including connections, hardware / software configurations, device manager and consulting vendor documentation
Evaluate results and take additional steps if needed such as consultation, alternate resources and manuals
Document activities and outcomes
Recognize and resolve common operational issues such as bluescreen, system lock-up, input / output device, application install, start or load and Windows-specific printing problems (e.g print spool stalled, incorrect / incompatible driver for print)
Explain common error messages and codes for example:
Boot (e.g invalid boot disk, inaccessible boot drive, missing NTLDR)
Startup (e.g device / service failed to start, device / program in registry not found)
Trang 39Disk management tools (e.g DEFRAG, NTBACKUP, CHKDSK, Format)
System management tools (e.g device and task manager, MSCONFIG.EXE)
File management tools (e.g Windows Explorer, ATTRIB.EXE)
3.4 Perform preventative maintenance on operating systems
Describe common utilities for performing preventative maintenance on operating systems for example, software and Windows updates (e.g service packs), scheduled backups / restore, restore points
Domain 4: Printers and Scanners
4.1 Identify the fundamental principles of using printers and scanners
Identify differences between types of printer and scanner technologies (e.g laser, inkjet, thermal, solid ink, impact)
Identify names, purposes and characteristics of printer and scanner components (e.g memory, driver, firmware) and consumables (e.g toner, ink cartridge, paper)
Identify the names, purposes and characteristics of interfaces used by printers and scanners including port and cable types for example:
Install and configure printers / scanners
Power and connect the device using local or network port
Install and update device driver and calibrate the device
Configure options and default settings
Print a test page
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Use appropriate generic or vendor-specific diagnostic tools including web-based utilities Review and analyze collected data
Establish probable causes
Review service documentation
Review knowledge base and define and isolate the problem (e.g software vs hardware, driver, connectivity, printer)
Identify solutions to identified printer / scanner problems
Define specific cause and apply fix
Replace consumables as needed
Verify functionality and get user acceptance of problem fix
Domain 5: Networks
5.1 Identify the fundamental principles of networks
Describe basic networking concepts
Cabling (e.g twisted pair, coaxial cable, fiber optic, RS-232)
Networking models including peer-to-peer and client / server
Identify names, purposes and characteristics of the common network cables