CompTIA® A+® complete study guide : Exam Core 220-1001 and Exam Core 220-1002

1696 Pages·2019·213.192 MB·English

by  Quentin Docter, Jon Buhagiar

® ®
CompTIA A+
Complete Study Guide
Fourth Edition

® ®
CompTIA A+
Complete Study Guide
Exam 220-1001 and Exam 220-1002
Fourth Edition
Quentin Docter
Jon Buhagiar
Senior Acquisitions Editor: Kenyon Brown
Development Editor: Tom Cirtin
Technical Editor: Chris Crayton
Senior Production Editor: Christine O’Connor
Copy Editor: John Sleeva
Editorial Manager: Pete Gaughan
Production Manager: Kathleen Wisor
Associate Publisher: Jim Minatel
Book Designers: Judy Fung and Bill Gibson
Proofreader: Nancy Carrasco
Indexer: Ted Laux
Project Coordinator, Cover: Brent Savage
Cover Designer: Wiley
Cover Image: Jeremy Woodhouse, Getty Images
Copyright © 2019 by John Wiley & Sons, Inc., Indianapolis, Indiana
Published simultaneously in Canada
ISBN: 978-1-119-51593-7
ISBN: 978-1-119-51595-1 (ebk.)
ISBN: 978-1-119-51600-2 (ebk.)
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10 9 8 7 6 5 4 3 2 1
For my girls.
—Quentin Docter
For my wife and son.
—Jon Buhagiar

Acknowledgments
As we were putting together this book, I was reminded of the proverb that begins “It takes
a small village….” That beginning definitely holds true to create a book of this scope and
size. From beginning to end, scores of dedicated professionals have focused on delivering
the best book possible to you, the readers.
First, I need to thank my coauthor Jon Buhagiar. I appreciate him diving in and dedicat-
ing himself to helping to produce an excellent book. I also need to give special thanks to
our technical editor, Chris Crayton. He was meticulous and thorough, and challenged me
to always find new and better ways to communicate complex concepts. His entire focus was
on providing the best training material possible, and I doubt there’s better in the business.
Now, on to the rest of the team.
Kenyon Brown and Tom Cirtin kept us on track and moving forward, which was a chal-
lenge at times. Christine O’Connor had the fun job of keeping us organized, which is akin
to herding cats. Copyeditor John Sleeva reminded me yet again that I am no master of the
English language and saved me from butchering it (too badly). Many thanks also go out to
proofreader, Nancy Carrasco and our indexer, Ted Laux. Without their great contribu-
tions, this book would not have made it into your hands.
On a personal note, I need to thank my family. My girls are all incredibly supportive.
Unfortunately, writing a book as my slash while holding down a full-time job takes up a lot
of time. I end up hiding in my office a lot, but they’re always there for me, and I couldn’t do
it without them. Another huge thanks goes to my late grandpa, Joe, who got me into com-
puters and taught me so many lessons I will never be able to repay. Finally, thanks to my
friends who keep me relatively sane—Sean, Kurtis, Tim, John, and others—and laugh at
me when I tell them I spent my weekend writing about the laser printer imaging process.
—Quentin Docter
I would like to first thank my coauthor Quentin Docter. Throughout the writing of this
book, he helped me with his insight and his expertise in writing technical books. Without
his words of wisdom and guidance, this book would not be the product it stands to be. I
would also like to give special thanks to our technical editor, Chris Crayton. His thorough
review of the material helped to identify many areas to elaborate on and polish.
I would also like to take the time to thank the many people who made this book pos-
sible: Kenyon Brown, at Wiley Publishing, for giving me the opportunity to write this book
and work with this wonderful team; Tom Cirtin, for keeping us on track during the writing
process; Christine O’Connor, who also kept us on track and organized during the publish-
ing process; and our copyeditor, John Sleeva, for helping me realize my use of IT slang at
times and proper English. I’d also like to thank the many other people I’ve never met but
who worked behind the scenes to make this book a success.
During the writing of this book, many others in my life supported me, and I’d like to
take this opportunity to thank them, as well. First and foremost, thanks to my wife and
son for their support during the many evenings and weekends spent in my office at the com-
puter. Finally, thanks to my friend and co-worker, Bill, for encouraging me daily with his
insight and jokes, as well as to all of my other co-workers and friends. Thank you.
—Jon Buhagiar