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Master IT hardware and software installation, configuration, repair, maintenance, and troubleshooting and fully prepare for the CompTIA® A+ Core 1 (220-1001) and Core 2 (220-1002) exams.
This is your all-in-one, real-world, full-color guide to connecting, managing, and troubleshooting modern devices and systems in authentic IT scenarios. Its thorough instruction built on the CompTIA A+ Core 1 (220-1001) and Core 2 (220-1002) exam objectives includes coverage of Windows 10, Mac, Linux, Chrome OS, Android, iOS, cloud-based software, mobile and IoT devices, security, Active Directory, scripting, and other modern techniques and best practices for IT management.
Award-winning instructor Cheryl Schmidt also addresses widely-used legacy technologiesmaking this the definitive resource for mastering the tools and technologies you'll encounter in real IT and business environments. Schmidt's emphasis on both technical and soft skills will help you rapidly become a well-qualified, professional, and customer-friendly technician.
LEARN MORE QUICKLY AND THOROUGHLY WITH THESE STUDY AND REVIEW TOOLS:
This book features chapter-ending exercises graded by courseinstructors. Answers are unavailable for independent study.
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Introduction................................... xxiv
Features of this Book........................ xxvi
Chapter 1: Introduction to the World of IT.............................. 1
Who Needs This Book?....................................................2
Technician Qualities...2
Breaking into IT with the CompTIA A+ Certification....5
Basic Skills for This Course.............................................6
Types of Computers....9
Basic Computer Hardware...............................................9
Mice and Keyboards.16
Common Peripherals18
1s and 0s...................21
Safety Notes.............25
Chapter Summary.....25
Key Terms.................26
Review Questions.....27
Exercises...................29
Activities...................30
Chapter 2: Connectivity......................33
Introduction to Connectivity..........................................34
External Connectivity.....................................................34
Mouse and Keyboard Ports............................................34
Video Ports...............35
Audio Ports...............50
eSATA Ports.............51
Network Ports...........51
Modem and Serial Ports.................................................52
Network Cabling......54
Integrated Motherboard Ports.........................................57
Getting to Know Ports....................................................58
Wireless Connectivity for Input Devices.......................59
Chapter Summary.....61
Key Terms.................62
Review Questions.....64
Exercises...................65
Activities...................67
Chapter 3: On the Motherboard...........71
Introduction to the Motherboard....................................72
Processor Overview..72
Processor Basics.......73
Speeding Up Processor Operations Overview...............76
Cache........................77
Clocking...................78
Threading Technology....................................................79
Connecting to the Processor...........................................79
Multicore Processors80
Graphics Processing Unit (GPU)...................................82
Introduction to Virtualization.........................................82
Intel Processors.........83
AMD Processors.......84
CPU Sockets.............85
Processor Cooling.....86
Installing a Processor.....................................................88
Upgrading Processors.....................................................90
Overclocking Processors................................................90
Installing CPU Thermal Solutions.................................91
Troubleshooting Processor Issues..................................92
Expansion Slots........93
PCI (Peripheral Component Interconnect).....................94
AGP (Accelerated Graphics Port)..................................95
PCIe (Peripheral Component Interconnect Express).....96
Chipsets..................100
Types of Motherboards.................................................101
Upgrading and Replacing Motherboards.....................102
Motherboard Troubleshooting......................................103
Chapter Summary...106
Key Terms...............108
Review Questions...109
Exercises.................111
Activities.................113
Chapter 4: Introduction to Configuration............................ 115
Configuration Overview...............................................116
BIOS Overview......116
The Setup Program.117
Flash BIOS.............118
BIOS/UEFI Configuration Settings..............................119
CMOS Memory......123
Motherboard Battery....................................................123
Firmware Updates: Flashing the BIOS/UEFI..............124
Clearing CMOS......125
Other Configuration Parameters...................................126
Hardware Configuration Overview..............................132
Installing a USB Device...............................................134
Installing an eSATA Card.............................................138
Installing a Network Interface Card.............................139
Video Overview......140
Video Cards............140
Troubleshooting Configurations...................................148
Chapter Summary...151
Key Terms...............152
Review Questions...153
Exercises.................155
Activities.................159
Chapter 5: Disassembly and Power..... 161
Disassembly Overview.................................................162
Electrostatic Discharge (ESD)......................................162
Electromagnetic Interference (EMI)............................165
Tools.......................165
Disassembly............167
Reassembly.............176
Preventive Maintenance................................................177
Basic Electronics Overview.........................................180
Power Supply Overview...............................................184
Replacing or Upgrading a Power Supply.....................193
Power Protection....197
Symptoms of Power Supply Problems.........................197
Chapter Summary...202
Key Terms...............204
Review Questions...205
Exercises.................208
Activities.................209
Chapter 6: Memory.......................... 211
Memory Overview..212
Memory Physical Packaging........................................213
Planning a Memory Installation...................................214
Installing Memory Overview.......................................226
Adding More Cache/RAM...........................................228
Windows Disk Caching................................................229
Monitoring Memory Usage in Windows......................231
Older Applications in Windows...................................233
Troubleshooting Memory Problems.............................234
Flash Memory.........235
Chapter Summary...238
Key Terms...............239
Review Questions...240
Exercises.................242
Activities.................249
Chapter 7: Storage Devices................ 251
Storage Devices Overview...........................................252
Hard Drive Overview...................................................253
Solid State Drive (SSD) Overview...............................256
Hard Drive Interfaces Overview...................................258
M.2 and NVMe......260
PATA, SATA, and SAS Connectivity...........................261
Storage Device Configuration Overview.....................265
System BIOS/UEFI Configuration for Hard Drives....271
Hard Drive Preparation Overview................................272
Windows Disk Management........................................280
Fault Tolerance.......282
Removable Drive Storage.............................................285
Windows Storage Spaces..............................................286
Disk Caching/Virtual Memory.....................................287
Troubleshooting Storage Devices Overview................290
Troubleshooting New Storage Device Installation......293
Troubleshooting Previously Installed Storage Devices294
RAID Issues...........298
SSD Issues..............299
Chapter Summary...301
Key Terms...............303
Review Questions...305
Exercises.................307
Activities.................310
Chapter 8: Multimedia Devices.......... 313
Multimedia Devices Overview.....................................314
Optical Drive Overview................................................314
Optical Drive Installation.............................................319
Troubleshooting Optical Drive Issues..........................321
Introduction to Audio...................................................324
Installing Sound Cards.................................................328
Sound Cards Using Windows.......................................328
Speakers..................330
Troubleshooting Sound Problems ...............................333
Scanners..................335
KVMs.....................339
Projectors................340
Video Recording.....342
Installing and Configuring Other Peripheral Devices..345
Chapter Summary...351
Key Terms...............352
Review Questions...353
Exercises.................355
Activities.................357
Chapter 9: Printers........................... 359
Printers Overview...360
Printer Ports............360
Categories of Printers...................................................361
Impact Printers.......361
Inkjet Printers.........363
Laser Printers..........366
Thermal Printers.....371
3D Printers..............372
Paper.......................375
Virtual Printing.......377
Refilling Cartridges, Re-inking Ribbons, and Recycling Cartridges...........379
Upgrading Printers.380
Printer Maintenance.....................................................380
USB Printer Installation...............................................386
Installing a Local Printer..............................................388
Printers in the Windows Environment..........................388
Printers in the macOS Environment.............................393
Printing Device Sharing...............................................395
Cloud Printing........399
General Printer Troubleshooting..................................402
USB-Attached Printer Troubleshooting.......................405
Windows Printer Troubleshooting................................405
Impact Printer Troubleshooting....................................407
Inkjet Printer Troubleshooting.....................................408
Laser Printer Troubleshooting......................................408
Chapter Summary...411
Key Terms...............412
Review Questions...413
Exercises.................415
Activities.................416
Chapter 10: Mobile Devices............... 419
Mobile Device Overview..............................................420
Using Mobile Devices..................................................431
Cell Phones.............435
Mobile Apps...........439
Mobile Device Wired Connectivity..............................443
Mobile Device Wireless Connectivity..........................444
Mobile Device Email Configuration............................453
Mobile Device Synchronization and Backup...............455
Other Mobile Software Tools.......................................463
Laptops Overview...466
Laptop Hardware....466
Laptop Power..........471
Laptop Repairs Overview.............................................475
Laptop Display.......491
Mobile Device Security................................................499
Mobile Device Travel and Storage...............................504
Mobile Device Troubleshooting Overview..................504
Chapter Summary...517
Key Terms...............519
Review Questions...521
Exercises.................523
Activities.................525
Chapter 11: Computer Design and Troubleshooting Review... 527
Design Overview....528
Computer System Design.............................................528
Motherboard and Associated Component Design........536
Power Supply and Case Design...................................537
Storage Subsystem Design...........................................539
Audio Subsystem Design.............................................540
Display Subsystem Design...........................................541
Troubleshooting Overview...........................................542
Step 1. Identify the Problem........................................543
Step 2. Establish a Theory of Probable Cause (Question the Obvious)......544
Step 3. Test the Theory to Determine the Cause..........551
Step 4. Establish a Plan of Action to Resolve the Problem and Implement the Solutio........554
Step 5. Verify Full System Functionality and, if Applicable, Implement Preventive Measures........................554
Step 6. Document Findings, Actions, and Outcomes...554
Sample Troubleshooting Flowcharts............................555
Chapter Summary...560
Key Terms...............563
Review Questions...564
Exercises.................565
Activities.................570
Chapter 12: Internet Connectivity, Virtualization, and Cloud Technologies................. 573
Internet Connectivity Overview...................................574
Dial-up Overview...574
Serial Communication Overview.................................575
Configuring Traditional Serial Devices........................576
56 kbps Modems....577
Digital Modems and ISDN...........................................579
VoIP........................579
Cable Modems........581
xDSL Modems.......584
Satellite Modems....586
Modem Preventive Maintenance..................................587
Mobile Connectivity Overview....................................587
Virtualization Basics.....................................................589
Cloud Computing...593
Web Browsers.........597
Basic Web Browser Issues............................................608
Chapter Summary...611
Key Terms...............613
Review Questions...614
Exercises.................615
Activities.................617
Chapter 13: Networking.................... 619
Networking Overview..................................................620
Attaching to Different Types of Networks...................620
Network Topologies.....................................................625
Network Media Overview............................................627
Copper Media.........627
Protecting Your Network and Cable Investment..........636
Ethernet Concepts...640
Ethernet over Power.....................................................641
The OSI Model.......642
The TCP/IP Model.644
Network Addressing.....................................................646
More IPv4 Addressing..................................................647
Wireless Networks Overview.......................................650
Wireless Network Standards........................................651
Bluetooth................651
Wireless Network Components....................................652
Wireless Network Design.............................................654
Antenna Basics.......660
End-User Device Configuration Overview..................664
Adding a Computer to a Windows Domain.................665
Configuring an End-User Device: Addressing.............665
Wireless NIC—Specific Settings...................................670
Advanced NIC Properties.............................................671
NIC Configuration When Using Virtualization............672
Thin or Thick Client Installation Overview.................673
Wireless AP/Router Basic Configuration.....................675
WWAN Cellular Configuration....................................677
IoT and Smart Devices.................................................677
Network Troubleshooting.............................................684
Troubleshooting Cable and DSL Modems...................691
Network Printers.....691
Network Printer Troubleshooting.................................692
Network Servers.....692
Embedded and Legacy Systems...................................694
Network Terminology...................................................694
The TCP/IP Model in Action.......................................695
Using the Network and Sharing Center Section of the Control Panel.........698
Introduction to Shared Folders.....................................702
Network Connectivity..................................................706
Chapter Summary...707
Key Terms...............709
Review Questions...711
Exercises.................714
Activities.................720
Chapter 14: Introduction to Operating Systems.................... 723
Operating Systems Overview.......................................724
User Interaction with Operating Systems....................724
Overview of Popular Operating Systems.....................726
32-bit vs. 64-bit Operating Systems.............................727
Windows 7/8/8.1/10 Versions.......................................728
Workstation Operating Systems...................................729
Operating Systems for Mobile Devices.......................729
End-of-Life Concerns...................................................730
Update Concerns....730
Compatibility Concerns................................................731
Corporate Operating System Needs.............................731
Basic Windows Usage Overview.................................733
Shortcuts and Tiles.736
Windows 7 Desktop Components................................737
Windows Desktop/Start Screen Components...............740
Windows 10 Desktop Components..............................741
Interactions Within a Window......................................743
Managing Windows Files and Folders.........................745
Searches and Indexing..................................................751
Attributes, Compression, and Encryption....................752
Introduction to Windows Control Panel Utilities.........754
Determining the Windows Version...............................757
Windows Registry..758
Editing the Windows Registry......................................759
Backing Up Data....760
Recovering the Windows OS........................................760
WinRE....................761
Chapter Summary...762
Key Terms...............763
Review Questions...764
Exercises.................765
Activities.................767
Chapter 15: Introduction to Scripting.. 769
Scripting Overview.770
Command Prompt Overview........................................771
Command Prompt Basics.............................................771
Moving Around from a Command Prompt..................773
The md and rd Commands..........................................777
Two Useful Commands: del and type.....................778
Copying Files.........778
The attrib Command...............................................779
Why Learn Commands?...............................................780
PowerShell..............780
Other Commands You Should Look Over...................781
Command Format...781
Introduction to Scripting..............................................803
Script File Types.....804
Environment Variables..................................................805
Script Syntax..........807
Introduction to Script Programming............................807
Variables.................808
Data Types..............810
Examples of Using Variables.......................................810
Comments...............812
Basic Script Constructs................................................813
Decisions: The Selection Structure..............................813
Compound Conditions and Logical Operators.............817
Loops: The Repetition Structure..................................817
A Brief Look at VBScript and PowerShell..................820
Chapter Summary...823
Key Terms...............824
Review Questions...826
Exercises.................827
Activities.................828
Chapter 16: Advanced Windows......... 831
Advanced Windows Overview.....................................832
Preinstallation of Windows...........................................832
Installation/Upgrade of Windows.................................841
Corporate Windows Deployment.................................842
Verifying the Installation..............................................843
Troubleshooting a Windows Installation......................843
Reloading Windows845
Windows Updates...846
Backing Up the Windows Registry and Data...............848
Configuring Windows Overview..................................850
Configuring Windows...................................................851
Adding Devices......852
Installing/Removing Software......................................857
Computer Management Console..................................861
System Tools...........862
User Account Management..........................................866
Managing Storage...874
Managing Services and Applications...........................877
Data Sources (ODBC)..................................................878
Print Management Console..........................................879
Overview of the Windows Boot Process......................880
Speeding Up the Windows Boot Process.....................881
Troubleshooting the Windows Boot Process................882
Black Screen/Video Issues...........................................884
Recovery Console...884
Advanced Boot Options/Startup Settings Menu..........887
System Configuration Utility.......................................889
Task Manager.........892
Troubleshooting a Service That Does Not Start..........895
Slow Boot...............896
Troubleshooting Windows Network Settings...............897
Windows Reboots...898
Shutdown Problems898
Power Options........899
Monitoring System Performance.................................900
Supporting Windows Computers Remotely.................905
Preventive Maintenance for Your Operating System...906
Chapter Summary...908
Key Terms...............909
Review Questions...911
Exercises.................912
Activities.................914
Chapter 17: macOS and Linux Operating Systems................. 917
Introduction to macOS.................................................918
Navigating the User Interface.......................................919
Basic System Usage, Updates, and Backups...............922
Management and Troubleshooting Tools.....................927
Utilities...................929
Introduction to Linux...................................................938
Navigating the User Interface.......................................940
Basic System Usage, Updates, and Backups...............941
Command-Line Interface.............................................944
macOS and Linux Best Practices.................................952
Chapter Summary...953
Key Terms...............954
Review Questions...955
Exercises.................956
Activities.................956
Chapter 18: Computer and Network Security....................... 959
Security Overview..960
Security Policy........960
Physical Security....961
Logical Security.....968
End-User Education.....................................................972
Protecting Access to Local and Network Resources....981
Permissions.............988
Folder Options........997
Protecting the Operating System and Data..................997
Internet Security...1003
Parental Controls..1013
NAT/PAT...............1014
VPN Configuration.....................................................1014
Remote Access to Network Devices..........................1015
Internet Appliances.....................................................1016
Wireless Network Security Overview........................1017
Security Incident Reporting.......................................1025
A Final Word About Security.....................................1027
Chapter Summary.1029
Key Terms.............1030
Review Questions.1032
Exercises...............1034
Activities...............1036
Chapter 19: Operational Procedures..1039
Operational Procedures Overview..............................1040
Adverse Power Conditions.........................................1050
Surge Protectors....1051
Line Conditioners.1053
Battery Backup.....1054
IT Documentation.1060
Change Management..................................................1064
Chapter Summary.1077
Key Terms.............1079
Review Questions.1080
Exercises...............1082
Activities...............1083
Appendix A: Subnetting Basics..........1085
Appendix B: Certification Exam Objectives (Online)
Glossary.........................................1089
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