Que Solaris 10 System Administration Exam Prep CX3
Exam Objectives Reference
The CX-310-200 Sun Certified System Administrator for Solaris 10 (SCSA) exam is the first of two exams required for obtaining the SCSA certification and is a tangible first step in achieving your certification. Candidates can use this book to prepare for the SCSA Part I exam. The CX-310-200 exam tests a candi- date’s knowledge and skills required to successfully install and manage a Solaris 10 system. The exam includes topics on installation, file systems, boot proce- dures, user administration, managing printers, system processes, and backups.
Exam Topics
The following topics are general guidelines for the content likely to be included on the Sun Certified System Administrator for Solaris 10 Part I exam. The exam objectives could change at any time, so it is recommended that you visit the appear on any specific delivery of the exam. In order to better reflect the contents of the exam and for clarity purposes, the guidelines that follow might change at any time without notice.
Install Software
Explain the Solaris 10 OS installation and upgrade options for CD / . DVD, including how to provide Minimal Installations for SPARC, x64, and x86-based systems.
Perform an OS installation from CD / DVD for SPARC, x64, and x86- . based systems.
Manage File Systems
Explain the Solaris 10 OS directory hierarchy, including root subdirecto- . ries, file components, and file types, and create and remove hard and sym- bolic links.
Explain disk architecture including the UFS file system capabilities and . naming conventions for devices for SPARC, x64, and x86-based systems. Exam Objectives Reference Use the prtconf and format commands to list devices, explain critical issues of the . /etc/path_to_inst file and reconfigure devices by performing a reconfiguration boot or using the devfsadm command for SPARC, x64, and x86-based systems.
Given a scenario, partition a disk correctly using the appropriate files, commands, and . options, and manage disk labels using SMI and EFI labels as they relate to disk sets.
Explain the Solaris 10 OS file system, including disk-based, distributed, devfs, and . memory file systems related to SMF, and create a new UFS file system using options for <1Tbyte and > 1Tbyte file systems.
Given a scenario, check and resolve Solaris 10 OS file system inconsistencies using .
fsck , and monitor file system usage using the command line ( df , du , and quot com- mands).
Perform mounts and unmounts on a Solaris 10 OS file system, and use volume man- . agement to access mounted diskettes and CD-ROMs, restrict access, troubleshoot vol- ume management problems, and explain access methods without volume management.
Perform Solaris 10 OS package administration using command-line interface com- . mands and manage software patches for the Solaris OS, including preparing for patch administration, and installing and removing patches using the patchadd and patchrm commands.
Perform System Boot and Shutdown Procedures for SPARC, x64, and x86-based systems
Given a scenario, explain boot PROM fundamentals, including OpenBoot Architecture . Standard, boot PROM, NVRAM, POST, Abort Sequence, and displaying POST to serial port for SPARC.
Given a scenario, explain the BIOS settings for booting, abort sequence, and displaying . POST, including BIOS configuration for x64 and x86-based system.
Execute basic boot PROM commands for a SPARC system.
.
Perform system boot and shutdown procedures, including identifying the system’s boot . device, creating and removing custom device aliases, viewing and changing NVRAM parameters, and interrupting an unresponsive system.
Explain the Service Management Facility and the phases of the boot process.
.
Use SMF or legacy commands and scripts to control both the boot and shutdown . procedures.
Exam Topics Describe the purpose , functions and features of the Grand Unified Bootloader . (GRUB), including how to modify x86 system boot behavior, manage GRUB boot archives, boot a system in the GRUB-based boot environment and interrupt an unre- sponsive system.
Perform User and Security Administration
Explain and perform Solaris 10 OS user administration, and manage user accounts and . initialization files.
Monitor system access by using appropriate commands.
.
Perform system security by switching users on a system, and by becoming root and . monitoring su attempts.
Control system security through restricting ftp access and using /etc/hosts.equiv . and $HOME/ .rhosts files, and SSH fundamentals.
Restrict access to data in files through the use of group membership, ownership, and . special file permissions.
Manage Network Printers and System Processes.
Configure and administer Solaris 10 OS print services, including client and server con- . figuration, starting and stopping the LP print service, specifying a destination printer, and using the LP print service.
Control system processes by viewing the processes, clearing frozen processes, and sched- . uling automatic one-time and recurring execution of commands using the command line.
Perform System Backups and Restores.
Given a scenario, develop a strategy for scheduled backups, and backup an unmounted . file system using the appropriate commands.
Perform Solaris 10 OS file system restores using the appropriate commands, including . restoring a regular file system, the /usr file system, the /(root) file system, and per- forming interactive and incremental restores for SPARC, x64, and x86 based systems.
Backup a mounted file system by creating a UFS snapshot and performing a backup of . the snapshot file.
Restore data from a UFS snapshot and delete the UFS snapshot.
.
This page intentionally left blank Solaris 10
System Administration
(Exam CX-310-200),
Part I
Bill CalkinsASSOCIATE PUBLISHER Solaris 10 System Administration Exam Prep
David Dusthimer (Exam CX-310-200), Part I
ACQUISITIONS EDITOR Copyright © 2009 by Que Publishing Betsy Brown All rights reserved. No part of this book shall be reproduced, stored in a retrieval system,
SENIOR DEVELOPMENT or transmitted by any means, electronic, mechanical, photocopying, recording, or other-
EDITOR wise, without written permission from the publisher. No patent liability is assumed with Christopher Cleveland respect to the use of the information contained herein. Although every precaution has been taken in the preparation of this book, the publisher and author assume no responsi-
TECHNICAL EDITOR bility for errors or omissions. Nor is any liability assumed for damages resulting from the John Philcox use of the information contained herein.
MANAGING EDITOR
ISBN-13: 978-0-7897-3790-8 Patrick Kanouse
ISBN-10: 0-7897-3790-6 PROJECT EDITOR
Library of Congress Cataloging-in-Publication Data: Mandie Frank Calkins, Bill.
COPY EDITOR Solaris 10 system administration exam prep (Exam CX-310-200) / Bill Gayle Johnson
Calkins.
INDEXER p. cm.
Ken Johnson
ISBN 978-0-7897-3790-8 (pbk. w/cd) PROOFREADER
1. Electronic data processing personnel--Certification. 2. Operating Matt Purcell systems (Computers)--Examinations--Study guides. 3. Solaris (Computer
PUBLISHING COORDINATOR file) I. Title.
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005.4'32--dc22 Dan Scherf 2008031592
DESIGNER Printed in the United States on America Gary Adair First Printing: September 2008
PAGE LAYOUT Mark Shriar
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Publishing cannot attest to the accuracy of this information. Use of a term in this book should not be regarded as affecting
the validity of any trademark or service mark.Warning and Disclaimer
Every effort has been made to make this book as complete and as accurate as possible, but no warranty or fitness is implied. The information provided is on an “as is” basis. The authors and the publisher shall have neither liability nor responsibility to any person or entity with respect to any loss or damages arising from the information contained in this book or from the use of the CD or programs accompanying it.
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more information, please contact U.S. Corporate and Government Sales 1-800-382-3419 corpsales@pearsontechgroup.comFor sales outside the United States, please contact International Sales international@pearsoned.com
Contents at a Glance
Introduction
1 Study and Exam Prep Tips
11 Part I: Exam Preparation
21 CHAPTER 2 Installing the Solaris 10 Operating Environment 171
CHAPTER 1 Managing File Systems
CHAPTER 3 Performing System Boot and Shutdown Procedures
for SPARC, x64-, and x86-Based Systems 267
CHAPTER 4 User and Security Administration 399 CHAPTER 5 Managing System Processes 493 CHAPTER 6 Managing the LP Print Service 541 CHAPTER 7 Performing System Backups and Restorations 589 Part II: Final Review Fast Facts
645 Practice Exam
677 Answers to the Practice Exam 685
Part III: Appendix APPENDIX What’s on the CD-ROM 693
Glossary 695 Index
715
Contents
Table of Contents
Solaris 10 System Administration Exam Prep
Block and Raw Devices ..........................................................................................46
Disk Controllers .....................................................................................................49 Defect List ..............................................................................................................49 Disk Labels .............................................................................................................50 Partition Tables.......................................................................................................51
Disk-Based File Systems ........................................................................................52 Network-Based File Systems .................................................................................52 Virtual File Systems................................................................................................53
Displaying Disk Configuration Information .........................................................56
format
Using the Utility to Create Slices...............................................................58 The Free Hog Slice................................................................................................66
format
Using the Utility to Modify Partitions.......................................................66 Using the Solaris Management Console Disks Tool ............................................69 Recovering Disk Partition Information.................................................................74 Logical Volumes .....................................................................................................75
Soft (Symbolic) Links .............................................................................................83 Hard Links..............................................................................................................85 Removing a Link ....................................................................................................87
The Boot Block ......................................................................................................88 The Superblock ......................................................................................................88 Cylinder Groups.....................................................................................................89
Contents The inode................................................................................................................89 The Storage Block..................................................................................................90 Free Blocks..............................................................................................................90
Logical Block Size ..................................................................................................93 Fragment Size .........................................................................................................93 Minimum Free Space .............................................................................................94 Optimization Type..................................................................................................95 Number of inodes and Bytes per inode .................................................................95
mkfs
The Command................................................................................................95
fstyp
The Command ..............................................................................................98
Synchronizing a File System ..................................................................................99 Repairing File Systems .........................................................................................100
labelit
The Command.........................................................................................104
volcopy
The Command.........................................................................................105
Mounting a File System with Large Files ...........................................................113 Mounting a File System with UFS Logging Enabled ........................................114
fuser
The Command............................................................................................115
/etc/mnttab
............................................................................................................116
Using Volume Management ................................................................................128 Troubleshooting Volume Manager ......................................................................129 Displaying a File System’s Disk Space Usage......................................................131 Displaying Directory Size Information ...............................................................135
Controlling User Disk Space Usage....................................................................138
quot
The Command..............................................................................................139
Solaris 10 System Administration Exam Prep
Key Terms.............................................................................................................141 Exercises................................................................................................................142 Exam Questions....................................................................................................147 Answers to Review Questions ..............................................................................163
Minimum System Requirements .........................................................................176
Software Packages.................................................................................................177 Software Groups...................................................................................................177 Solaris Media ........................................................................................................179 System Configuration to Be Installed..................................................................179
Basic Considerations for Planning Partition (Slice) Sizes ..................................183 Slice Arrangements on Multiple Disks ................................................................184
Solaris Interactive Installation: Using the GUI ..................................................186 Solaris Interactive Installation: Using the CLI ...................................................186 JumpStart ..............................................................................................................187 Custom JumpStart ................................................................................................187 Solaris Live Upgrade ............................................................................................188 Solaris Flash Archives...........................................................................................189 WAN Boot............................................................................................................190
Secure by Default .................................................................................................194
install-solaris
Using the Interactive Installation Process ( ) on a SPARC-Based System.................................................................................................................195
Configuring Power Management ........................................................................224
Contents
Installing Software from the Command Line .....................................................229
pkgrm
Removing Software Using ..........................................................................229 Solaris Product Registry.......................................................................................230 Web Start Installer ...............................................................................................233
Installing a Patch ..................................................................................................240 Removing a Patch.................................................................................................243
Key Terms.............................................................................................................253 Exercises................................................................................................................254 Exam Questions....................................................................................................258 Answers to Exam Questions.................................................................................264 Suggested Readings and Resources .....................................................................266
Powering on the System.......................................................................................273 The Boot PROM and Program Phases ...............................................................273
Entry-Level to High-End Systems ......................................................................276 Accessing the OpenBoot Environment ...............................................................276 System Console ....................................................................................................277 System Control Switch.........................................................................................277 OpenBoot Firmware Tasks...................................................................................278
Solaris 10 System Administration Exam Prep
OpenBoot Device Aliases .....................................................................................287
nvedit
The Line Editor ........................................................................................296
Input and Output Control ...................................................................................305
boot
The Command..............................................................................................309 The BIOS .............................................................................................................319 GRUB ...................................................................................................................320 Configuring the Video Display on the x86/x64 Platform...................................329
The Service Management Facility (SMF) ...........................................................337 Using the Run Control Scripts to Stop or Start Services...................................366
Commands to Shut Down the System ................................................................371 Stopping the System for Recovery Purposes: SPARC ........................................375 Stopping the System for Recovery Purposes: x86/x64........................................377 Turning Off the Power to the Hardware ............................................................377
Key Terms.............................................................................................................378 Exercises................................................................................................................380 Exam Questions....................................................................................................384 Answers to Exam Questions.................................................................................392
Managing User and Group Accounts with the SMC .........................................402 Managing User and Group Accounts from the Command Line .......................417
Contents
C Shell Initialization Files....................................................................................425 Bourne Shell Initialization Files...........................................................................426 Korn Shell Initialization Files ..............................................................................426 Additional Shells Included with Solaris 10..........................................................426 Default Initialization Files....................................................................................427 Customizing User Initialization Files ..................................................................428 The Home Directory ...........................................................................................431 Projects..................................................................................................................432 Name Services ......................................................................................................432
Controlling Physical Security ..............................................................................434 Controlling System Access...................................................................................434 Controlling File Access ........................................................................................443
Setting ACL Entries.............................................................................................448 Checking the New File Permissions....................................................................450 Verifying ACL Entries .........................................................................................450 Copying a File’s ACL to Another File.................................................................450 Modifying ACL Entries on a File........................................................................451 Deleting ACL Entries from a File.......................................................................451 Auditing Users ......................................................................................................454 Controlling Network Security .............................................................................459 Securing Superuser Access ...................................................................................466
Key Terms.............................................................................................................457 Exercises................................................................................................................475 Exam Questions....................................................................................................480 Answers to Exam Questions.................................................................................489
Solaris 10 System Administration Exam Prep
pgrep
......................................................................................................................500
prstat
.....................................................................................................................502
mpstat
.....................................................................................................................506
ptree
......................................................................................................................507
time
........................................................................................................................507 Process Manager...................................................................................................508 SMC Process Tool................................................................................................511
pargs
......................................................................................................................512
svcs
........................................................................................................................514
nice
Changing the Priority of a Time-Sharing Process with .............................522
priocntl
Changing the Scheduling Priority of Processes with ...........................524 Fair Share Scheduler (FSS) and the Fixed Scheduler (FX).................................525
crontab
Configuring ..............................................................................................525
at
Scheduling a Single System Event ( ) ................................................................528 Job Scheduler........................................................................................................531
Key Terms.............................................................................................................533 Exercises................................................................................................................534 Exam Questions....................................................................................................535 Answers to Exam Questions.................................................................................539
LP Print Service Directories................................................................................546 The Print Spooler ................................................................................................547
Contents The LP Print Daemons .......................................................................................548
Ethernet Connections ..........................................................................................550 Parallel Connections.............................................................................................550 Serial Connections................................................................................................550 USB Connections .................................................................................................551
BSD Versus SVR4 Printing Software ..................................................................551 Print Servers Versus Print Clients .......................................................................553 Configuring Software for a Solaris Printer .........................................................554
Deleting Printers and Managing Printer Access.................................................560 Creating Printer Classes.......................................................................................562 Checking Printer Status .......................................................................................564 Managing Printer Queues....................................................................................565 Restarting the Print Scheduler.............................................................................571 Setting a User’s Default Printer...........................................................................572 Modifying the Printer with Print Manager.........................................................572 Troubleshooting the Print Scheduler ..................................................................574
Key Terms.............................................................................................................575 Exercises................................................................................................................576 Exam Questions....................................................................................................582 Answers to Exam Questions.................................................................................586
Tape Device Names..............................................................................................593
tar
The Utility......................................................................................................595
dd
The Utility .......................................................................................................597
cpio
The Utility ....................................................................................................599
pax
The Utility......................................................................................................603
Solaris 10 System Administration Exam Prep
ufsdump
The Utility ...............................................................................................606
ufsrestore
The Utility ..........................................................................................612
/usr
Recovering the Root (/) or File System .......................................................618 Additional Notes About Restoring Files .............................................................622
Key Terms.............................................................................................................634 Exercises................................................................................................................635 Exam Questions....................................................................................................637 Answers to Exam Questions.................................................................................640
Shells and Initialization Files ...............................................................................662 System Security.....................................................................................................665 Protecting Data ....................................................................................................666
Contents Access Control Lists (ACLs)................................................................................667 Monitoring Users .................................................................................................668 Network Security..................................................................................................668 Restricting Root Access........................................................................................669
Using the
kill
Command ....................................................................................670 Using the Solaris Batch-Processing Facility........................................................671
The LP Print Daemons .......................................................................................674
About the Author
Bill Calkins is a Sun Certified System Administrator for the Solaris operating environment.
He is owner and president of Pyramid Consulting Inc., a computer training and consulting firm located near Grand Rapids, Michigan, specializing in the implementation and adminis- tration of Open Systems. He has more than 20 years of experience in Unix system adminis- tration, consulting, and training at more than 150 different companies. Bill has authored several Unix textbooks, which are currently best sellers and are used by universities and train- ing organizations worldwide:
Solaris 2.6 Administrator Certification Training Guide Part I (New Riders Publishing,
.ISBN: 157870085X)
Solaris 2.6 Administrator Certification Training Guide Part II (New Riders Publishing,
.ISBN: 1578700868)
Solaris 7 Administrator Certification Training Guide: Parts I and II (New Riders .
Publishing, ISBN: 1578702496)
Solaris 8 Training Guide (CX-310-011 and CX-310-012): System Administrator .
(New Riders Publishing, ISBN: 1578702593)
Inside Solaris 9 (New Riders Publishing, ISBN: 0735711011) .
Solaris 9 Training Guide (CX-310-014 and CX-310-015): System Administrator . (New Riders Publishing, ISBN: 0789729229)
Solaris 10 System Administration – First Edition (Que, ISBN: 0789734613) . Bill has worked with Sun Press and Prentice Hall as a technical editor and a major contribu- tor to many of their Solaris titles. Bill’s professional interests include consulting, writing, teaching, traveling, and developing Web-based training materials. Bill works as a consultant with the certification group at Sun Microsystems and assists with the development of the Solaris 10 SCSA, SCNA, and SCSECA certification exams. Bill also con- sults with Sun Microsystems Professional Services and assists in the development of Solaris training and testing materials for the education division at Sun Microsystems. Bill works as an instructor in government, corporate and university settings, and has helped thousands of administrators get their certification. Recently he was recognized by the United States Central Command (CENTCOM) as the “technical trainer of choice for the joint war fighting community.” His experience covers all varieties of Unix, including Solaris, HP-UX, AIX, IRIX, and Linux. When he’s not working in the field, he writes Unix books and conducts training and educa- tional seminars on various system administration topics. He draws on his many years of expe- rience in system administration and training to provide a unique approach to Unix training.
Acknowledgments
I’d like to thank John Philcox of Mobile Ventures Limited, who once again has helped me get this book together. As always, John, you’ve done a great job. You’ve been a great asset and have become a good friend to have along on all of my books and projects. I want to thank all the editors who have contributed to this book; I value your input greatly. With each book, our tech editors get more refined, and their work is a huge contribution to the quality of this book. It’s been a great team effort, and the book would not be as complete without your help. A special thanks goes out to Scott Howard and Edgar Danielyan. A big thanks to Sun Microsystems for letting me participate in the Solaris 10 beta program and the input that they have provided for this book. A special thanks to Yvonne Prefontaine at Sun for her contributions and the information that she provided in the intro of this book. Thank you, the reader, for buying my books and providing comments to improve the content with each new release. This book would not be what it is if it were not for your valuable input over the years. May the material in this book help you better your skills, enhance your career, and achieve your goal to become certified. Best of luck! A lot of people behind the scenes make a book like this happen. After several books, I still don’t have a clue how it all works, but it’s a great team effort. A big thanks to everyone who edits the text, sets the type, prints the pages, and ships the book. My efforts would be lost in a closet somewhere if it weren’t for your hard work.
We Want to Hear from You!
As the reader of this book, you are our most important critic and commentator. We value your opinion and want to know what we’re doing right, what we could do better, what areas you’d like to see us publish in, and any other words of wisdom you’re willing to pass our way. As an associate publisher for Que Publishing, I welcome your comments. You can email or write me directly to let me know what you did or didn’t like about this book—as well as what we can do to make our books better.
Please note that I cannot help you with technical problems related to the topic of this book. We do have
a User Services group, however, where I will forward specific technical questions related to the book.When you write, please be sure to include this book’s title and author as well as your name, email address, and phone number. I will carefully review your comments and share them with the author and editors who worked on the book. Email: feedback@quepublishing.com Mail: Dave Dusthimer
Associate Publisher Que Publishing 800 East 96th Street Indianapolis, IN 46240 USA
Reader Services
V access to any updates, downloads, or errata that might be available for this book.
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Bill Calkins has been training Solaris system administrators for more than 15 years. This book contains the training material he uses in his basic and advanced Solaris administration courses. Over the years, this material has helped thousands of Solaris administrators become certified. This is our first edition of the Solaris 10 System Administration Exam Prep. It began with the
Training Guide for Solaris 2.6, 7, 8, and 9 and is now the Exam Prep for Solaris 10. Instructors
from universities and training organizations around the world have used this book as course- ware in their Solaris administration courses. In addition, administrators from around the world have used this book as a self-study guide when instruction from a Sun training center is either unavailable or not within their budget. Many people have written with their success stories, suggestions, and comments. Their suggestions are what keep making this guide more valuable. The SCSA Solaris 10 OS CX-310-200 and CX-310-202 Exam Prep books provide training materials for anyone who is interested in becoming a Sun Certified System Administrator for Solaris 10. When used as a study guide, these two books will save you a great deal of time and effort searching for information you will need to know when taking the exam. Each book cov- ers the exam objectives in enough detail for the inexperienced administrator to learn the objec- tives and apply the knowledge to real-life scenarios. Experienced readers will find the material in these books to be complete and concise, making it a valuable study guide for the Sun Certified System Administrator (SCSA) exams.
This book is not a cheat sheet or cram session for the exam; it is a training manual. In other words, it does not merely give answers to the questions you will be asked on the exam. We have made certain that this book addresses the exam objectives in detail, from start to finish. If you are unsure about the objectives on the exams, this book teaches you what you need to know. After reading each chapter, assess your knowledge of the material covered using the review questions at the end of the chapter. When you have completed reading a section, use the prac- tice exam at the end of the book and the ExamGear test engine on the CD-ROM to assess your knowledge of the objectives covered on each exam. This CD-ROM contains sample questions similar to what you are likely to see on the real exam. More sample questions are available at
Solaris 10 System Administration Exam Prep
This book teaches you how to administer the Solaris 10 operating system. It offers you a self- guided training course for all the areas covered on the CX-310-200 certification exam by showing you how to install, configure, and administer the Solaris 10 operating environment. You will learn the specific skills that are required to administer a system and to pass the first part of the Sun Certified System Administrator exam for Solaris 10 (CX-210-200). Experienced administrators who are upgrading an existing Solaris certification will find in- depth coverage of the new topics that they will need to learn for the CX-310-203 upgrade exam in both the SCSA Solaris 10 OS CX-310-200 and CX-310-202 Exam Prep books. Throughout the book, we provide helpful tips and real-world examples that we have encoun- tered as system administrators. In addition, we provide useful real-world exercises to help you practice the material you have learned. The following list describes this book’s setup:
Organization: This book is organized according to the individual exam objectives.
.
Every objective you need to know for installing, configuring, and administering a Solaris 10 system is in this book. We have attempted to present the objectives in an order that is as close as possible to that listed by Sun. However, we have not hesitated to reorganize them as needed to make the material as easy as possible for you to learn. We have also attempted to make the information accessible in the following ways: This Introduction includes the full list of exam topics and objectives.
.
Read the “Study and Exam Prep Tips” element early on to help you develop study . strategies. This element provides valuable exam-day tips and information on exam/question formats.
Each chapter begins with a list of the objectives to be covered, exactly as they are . defined by Sun. Throughout each section, material that is directly related to the exam objectives is identified.
Each chapter also begins with an outline that provides you with an overview of the . material and the page numbers where particular topics can be found.
Instructional features: This book is designed to provide you with multiple ways to
.learn and reinforce the exam material. The following are some of the helpful methods:
Objective explanations: As mentioned, each chapter begins with a list of the .
objectives covered in the chapter. In addition, immediately following each objec- tive is an explanation in a context that defines it more meaningfully.
Study Strategies: The beginning of each chapter also includes strategies for .
studying and retaining the material in the chapter, particularly as it is addressed on the exam.
Introduction
Exam Alerts: Throughout each chapter you’ll find exam tips that help you prepare .
for exam day. These tips were written by those who have already taken the Solaris 10 certification exams.
Notes: Notes contain various types of useful information, such as tips on technol- .
ogy or administrative practices, historical background on terms and technologies, or side commentary on industry issues.
Cautions: When you use sophisticated information technology, mistakes or even .
catastrophes are always possible because of improper application of the technology. Cautions alert you to such potential problems.
Step by Steps: These are hands-on lab excercises that walk you through a particu- .
lar task or function relevant to the exam objectives.
Key Terms: A list of key terms appears near the end of each chapter.
.
Exercises: Found at the end of the chapters in the “Summary” section, the exercises .
are performance-based opportunities for you to learn and assess your knowledge.