CompTIA A+ CertMike: Core 1 Exam 220-1101 (2023)
CompTIA A+ CertMike: Core 1 Exam 220-1101 (2023) makes exam prep stress-free with structured learning.
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Table of Contents
COVER
WILEY BOOKS IN THE CERTMIKE SERIES
TITLE PAGE
COPYRIGHT
DEDICATION
ACKNOWLEDGMENTS
ABOUT THE AUTHORS
ABOUT THE TECHNICAL EDITOR
INTRODUCTION
THE A+ PROGRAM
WHAT DOES THIS BOOK COVER?
CORE 1 EXAM 220-1101 EXAM OBJECTIVES
220-1101 CERTIFICATION EXAM OBJECTIVE MAP
HOW TO CONTACT THE PUBLISHER
PART I: Domain 1.0: Mobile Devices
CHAPTER 1: Laptop Hardware
WHAT IS A LAPTOP?
LAPTOP BATTERY POWER
LAPTOP KEYBOARD AND SPECIAL LAPTOP KEYS
LAPTOP RAM
MIGRATING DATA FROM AN HDD TO AN SSD
REPLACING HDDs AND SSDs
WIRELESS CARDS
PHYSICAL PRIVACY WITH BIOMETRICS
PHYSICAL PRIVACY WITH NEAR-FIELD SCANNERS
CHAPTER 2: Mobile Device Displays
MOBILE DEVICE DISPLAY TYPES
COVER
WILEY BOOKS IN THE CERTMIKE SERIES
TITLE PAGE
COPYRIGHT
DEDICATION
ACKNOWLEDGMENTS
ABOUT THE AUTHORS
ABOUT THE TECHNICAL EDITOR
INTRODUCTION
THE A+ PROGRAM
WHAT DOES THIS BOOK COVER?
CORE 1 EXAM 220-1101 EXAM OBJECTIVES
220-1101 CERTIFICATION EXAM OBJECTIVE MAP
HOW TO CONTACT THE PUBLISHER
PART I: Domain 1.0: Mobile Devices
CHAPTER 1: Laptop Hardware
WHAT IS A LAPTOP?
LAPTOP BATTERY POWER
LAPTOP KEYBOARD AND SPECIAL LAPTOP KEYS
LAPTOP RAM
MIGRATING DATA FROM AN HDD TO AN SSD
REPLACING HDDs AND SSDs
WIRELESS CARDS
PHYSICAL PRIVACY WITH BIOMETRICS
PHYSICAL PRIVACY WITH NEAR-FIELD SCANNERS
CHAPTER 2: Mobile Device Displays
MOBILE DEVICE DISPLAY TYPES
ORGANIC LIGHT-EMITTING DIODE
MOBILE DISPLAY COMPONENTS
CHAPTER 3: Mobile Device Ports and Accessories
CONNECTION METHODS
ACCESSORIES
DOCKING STATIONS
PORT REPLICATOR
TRACKPAD/DRAWING PAD
CHAPTER 4: Mobile Device Network Connectivity and
Application Support
WIRELESS/CELLULAR DATA NETWORK
(ENABLE/DISABLE)
BLUETOOTH
LOCATION SERVICES
MOBILE DEVICE MANAGEMENT/MOBILE
APPLICATION MANAGEMENT
MOBILE DEVICE SYNCHRONIZATION
PART II: Domain 2.0: Networking
CHAPTER 5: TCP/IP Networking
WHAT IS TCP/IP?
TCP VS. UDP
CHAPTER 6: TCP/IP Ports and Protocols
WHAT ARE PORTS?
PORTS AND PROTOCOLS
CHAPTER 7: Networking Hardware
CABLE MODEM
DIGITAL SUBSCRIBER LINE
OPTICAL NETWORK TERMINAL
ROUTERS
SWITCHES
MOBILE DISPLAY COMPONENTS
CHAPTER 3: Mobile Device Ports and Accessories
CONNECTION METHODS
ACCESSORIES
DOCKING STATIONS
PORT REPLICATOR
TRACKPAD/DRAWING PAD
CHAPTER 4: Mobile Device Network Connectivity and
Application Support
WIRELESS/CELLULAR DATA NETWORK
(ENABLE/DISABLE)
BLUETOOTH
LOCATION SERVICES
MOBILE DEVICE MANAGEMENT/MOBILE
APPLICATION MANAGEMENT
MOBILE DEVICE SYNCHRONIZATION
PART II: Domain 2.0: Networking
CHAPTER 5: TCP/IP Networking
WHAT IS TCP/IP?
TCP VS. UDP
CHAPTER 6: TCP/IP Ports and Protocols
WHAT ARE PORTS?
PORTS AND PROTOCOLS
CHAPTER 7: Networking Hardware
CABLE MODEM
DIGITAL SUBSCRIBER LINE
OPTICAL NETWORK TERMINAL
ROUTERS
SWITCHES
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ACCESS POINTS
PATCH PANEL
NETWORK INTERFACE CARD
FIREWALL
POWER OVER ETHERNET
HUB
SOFTWARE-DEFINED NETWORKING
CHAPTER 8: Wireless Networking Protocols
FREQUENCIES
CHANNELS
802.11
BLUETOOTH
LONG-RANGE FIXED WIRELESS
NFC
RADIO-FREQUENCY IDENTIFICATION
CHAPTER 9: Networked Host Services
SERVER ROLES
INTERNET APPLIANCES
LEGACY/EMBEDDED SYSTEMS
INTERNET OF THINGS DEVICES
CHAPTER 10: Installing and Configuring Networks
INTERNET PROTOCOL ADDRESSING
CHAPTER 11: Advanced Network Configuration
DNS
DHCP
VIRTUAL LAN
VIRTUAL PRIVATE NETWORK
CHAPTER 12: Internet Connection Types
INTERNET CONNECTION TYPES
PATCH PANEL
NETWORK INTERFACE CARD
FIREWALL
POWER OVER ETHERNET
HUB
SOFTWARE-DEFINED NETWORKING
CHAPTER 8: Wireless Networking Protocols
FREQUENCIES
CHANNELS
802.11
BLUETOOTH
LONG-RANGE FIXED WIRELESS
NFC
RADIO-FREQUENCY IDENTIFICATION
CHAPTER 9: Networked Host Services
SERVER ROLES
INTERNET APPLIANCES
LEGACY/EMBEDDED SYSTEMS
INTERNET OF THINGS DEVICES
CHAPTER 10: Installing and Configuring Networks
INTERNET PROTOCOL ADDRESSING
CHAPTER 11: Advanced Network Configuration
DNS
DHCP
VIRTUAL LAN
VIRTUAL PRIVATE NETWORK
CHAPTER 12: Internet Connection Types
INTERNET CONNECTION TYPES
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NETWORK TYPES
CHAPTER 13: Networking Tools
WHAT ARE NETWORK TOOLS USED FOR?
CRIMPER
CABLE STRIPPER
WI-FI ANALYZER
TONER PROBE
CABLE TESTER
LOOPBACK PLUG
NETWORK TAP
PART III: Domain 3.0: Hardware
CHAPTER 14: Cables and Connectors
NETWORK CABLES
PERIPHERAL CABLES AND CONNECTORS
VIDEO CABLES AND CONNECTORS
HARD DRIVE CABLES AND CONNECTORS
CHAPTER 15: Random Access Memory (RAM)
RAM TYPES
MEMORY CONFIGURATION
CHAPTER 16: Storage Devices
HARD DRIVES
SSDs
DRIVE CONFIGURATION
REMOVABLE STORAGE
CHAPTER 17: Motherboards
MOTHERBOARD FORM FACTORS
MOTHERBOARD CONNECTOR TYPES
MOTHERBOARD COMPATIBILITY
COOLING
CHAPTER 13: Networking Tools
WHAT ARE NETWORK TOOLS USED FOR?
CRIMPER
CABLE STRIPPER
WI-FI ANALYZER
TONER PROBE
CABLE TESTER
LOOPBACK PLUG
NETWORK TAP
PART III: Domain 3.0: Hardware
CHAPTER 14: Cables and Connectors
NETWORK CABLES
PERIPHERAL CABLES AND CONNECTORS
VIDEO CABLES AND CONNECTORS
HARD DRIVE CABLES AND CONNECTORS
CHAPTER 15: Random Access Memory (RAM)
RAM TYPES
MEMORY CONFIGURATION
CHAPTER 16: Storage Devices
HARD DRIVES
SSDs
DRIVE CONFIGURATION
REMOVABLE STORAGE
CHAPTER 17: Motherboards
MOTHERBOARD FORM FACTORS
MOTHERBOARD CONNECTOR TYPES
MOTHERBOARD COMPATIBILITY
COOLING
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CHAPTER 18: Booting, CPUs, and Expansion Cards
BASIC INPUT/OUTPUT SYSTEM AND UNIFIED
EXTENSIBLE FIRMWARE INTERFACE SETTINGS
ENCRYPTION
CPU ARCHITECTURE
EXPANSION CARDS
CHAPTER 19: Power Supplies
INPUT 110-120 VAC VS. 220-240 VAC
OUTPUT 3.3V VS. 5V VS. 12V
20-PIN TO 24-PIN MOTHERBOARD ADAPTER
REDUNDANT POWER SUPPLY
MODULAR POWER SUPPLY
WATTAGE RATING
POWER SUPPLY REPLACEMENT PROCESS
CHAPTER 20: Printer and Multifunction Device
Configuration
PROPERLY UNBOXING A DEVICE—SETUP
LOCATION CONSIDERATIONS
USE APPROPRIATE DRIVERS FOR A GIVEN OS
DEVICE CONNECTIVITY
PUBLIC/SHARED DEVICES
CONFIGURATION SETTINGS
SECURITY
NETWORK SCAN SERVICES
AUTOMATIC DOCUMENT FEEDER/FLATBED
SCANNER
CHAPTER 21: Printer Consumable Replacement
LASER PRINTERS
INKJET PRINTERS
THERMAL PRINTERS
BASIC INPUT/OUTPUT SYSTEM AND UNIFIED
EXTENSIBLE FIRMWARE INTERFACE SETTINGS
ENCRYPTION
CPU ARCHITECTURE
EXPANSION CARDS
CHAPTER 19: Power Supplies
INPUT 110-120 VAC VS. 220-240 VAC
OUTPUT 3.3V VS. 5V VS. 12V
20-PIN TO 24-PIN MOTHERBOARD ADAPTER
REDUNDANT POWER SUPPLY
MODULAR POWER SUPPLY
WATTAGE RATING
POWER SUPPLY REPLACEMENT PROCESS
CHAPTER 20: Printer and Multifunction Device
Configuration
PROPERLY UNBOXING A DEVICE—SETUP
LOCATION CONSIDERATIONS
USE APPROPRIATE DRIVERS FOR A GIVEN OS
DEVICE CONNECTIVITY
PUBLIC/SHARED DEVICES
CONFIGURATION SETTINGS
SECURITY
NETWORK SCAN SERVICES
AUTOMATIC DOCUMENT FEEDER/FLATBED
SCANNER
CHAPTER 21: Printer Consumable Replacement
LASER PRINTERS
INKJET PRINTERS
THERMAL PRINTERS
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IMPACT
3-D PRINTERS
PART IV: Domain 4.0: Virtualization and Cloud Computing
CHAPTER 22: Cloud Computing
WHAT IS CLOUD COMPUTING?
CLOUD DEPLOYMENT MODELS
CLOUD CHARACTERISTICS
CHAPTER 23: Virtualization
PURPOSE OF VIRTUAL MACHINES
RESOURCE REQUIREMENTS
SECURITY REQUIREMENTS
PART V: Domain 5.0: Hardware and Network Troubleshooting
CHAPTER 24: Troubleshooting Methodology
TROUBLESHOOTING METHODOLOGY
CHAPTER 25: Troubleshooting Motherboards, RAM, CPU,
and Power
COMMON SYMPTOMS
POWER-ON SELF-TEST BEEPS
PROPRIETARY CRASH SCREENS (BLUE SCREEN OF
DEATH/PINWHEEL)
BLACK SCREEN
NO POWER
SLUGGISH PERFORMANCE
OVERHEATING
BURNING SMELL
CAPACITOR SWELLING
INTERMITTENT SHUTDOWN
APPLICATION CRASHES
GRINDING NOISE
INACCURATE SYSTEM DATE/TIME
3-D PRINTERS
PART IV: Domain 4.0: Virtualization and Cloud Computing
CHAPTER 22: Cloud Computing
WHAT IS CLOUD COMPUTING?
CLOUD DEPLOYMENT MODELS
CLOUD CHARACTERISTICS
CHAPTER 23: Virtualization
PURPOSE OF VIRTUAL MACHINES
RESOURCE REQUIREMENTS
SECURITY REQUIREMENTS
PART V: Domain 5.0: Hardware and Network Troubleshooting
CHAPTER 24: Troubleshooting Methodology
TROUBLESHOOTING METHODOLOGY
CHAPTER 25: Troubleshooting Motherboards, RAM, CPU,
and Power
COMMON SYMPTOMS
POWER-ON SELF-TEST BEEPS
PROPRIETARY CRASH SCREENS (BLUE SCREEN OF
DEATH/PINWHEEL)
BLACK SCREEN
NO POWER
SLUGGISH PERFORMANCE
OVERHEATING
BURNING SMELL
CAPACITOR SWELLING
INTERMITTENT SHUTDOWN
APPLICATION CRASHES
GRINDING NOISE
INACCURATE SYSTEM DATE/TIME
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CHAPTER 26: Troubleshooting Storage
COMMON SYMPTOMS AND SOLUTIONS
CHAPTER 27: Troubleshooting Video
COMMON SYMPTOMS AND SOLUTIONS
CHAPTER 28: Troubleshooting Mobile Devices
COMMON SYMPTOMS
CHAPTER 29: Troubleshooting Printers
COMMON SYMPTOMS AND SOLUTIONS
CHAPTER 30: Troubleshooting Networks
COMMON SYMPTOMS
INDEX
END USER LICENSE AGREEMENT
List of Tables
Chapter 4
TABLE 4.1 2G-3G-4G-5G Quick Reference
Chapter 8
TABLE 8.1 Wi-Fi 1 Through Wi-Fi 6 Speeds and Frequencies
Chapter 10
TABLE 10.1 Reserved Private IP Addresses by Class
Chapter 12
TABLE 12.1 Residential Satellite Internet Service Provider
Comparison
Chapter 14
TABLE 14.1 CAT5-5e-6-6a Specifications
TABLE 14.2 EIA/TIA T568A and T568B Wiring Standards
TABLE 14.3 USB 3.0/3.1/3.2 Speeds and Port/Cable Types
Chapter 15
COMMON SYMPTOMS AND SOLUTIONS
CHAPTER 27: Troubleshooting Video
COMMON SYMPTOMS AND SOLUTIONS
CHAPTER 28: Troubleshooting Mobile Devices
COMMON SYMPTOMS
CHAPTER 29: Troubleshooting Printers
COMMON SYMPTOMS AND SOLUTIONS
CHAPTER 30: Troubleshooting Networks
COMMON SYMPTOMS
INDEX
END USER LICENSE AGREEMENT
List of Tables
Chapter 4
TABLE 4.1 2G-3G-4G-5G Quick Reference
Chapter 8
TABLE 8.1 Wi-Fi 1 Through Wi-Fi 6 Speeds and Frequencies
Chapter 10
TABLE 10.1 Reserved Private IP Addresses by Class
Chapter 12
TABLE 12.1 Residential Satellite Internet Service Provider
Comparison
Chapter 14
TABLE 14.1 CAT5-5e-6-6a Specifications
TABLE 14.2 EIA/TIA T568A and T568B Wiring Standards
TABLE 14.3 USB 3.0/3.1/3.2 Speeds and Port/Cable Types
Chapter 15
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TABLE 15.1 Common DDR3 Speeds
TABLE 15.2 Common DDR4 Speeds
TABLE 15.3 Common DDR5 Speeds
Chapter 16
TABLE 16.1 HDD Speeds and Recommended Uses
Chapter 17
TABLE 17.1 PCIe Slots and Versions
Chapter 18
TABLE 18.1 Selected Recent AMD and Intel Multicore CPUs
Chapter 19
TABLE 19.1 : POWER CONNECTORS AND USES
Chapter 23
TABLE 23.1 Oracle VirtualBox RAM and Virtual HD
Recommendations
Chapter 25
TABLE 25.1 Example Beep Codes
Chapter 26
TABLE 26.1 RAID Failure
List of Illustrations
Chapter 1
FIGURE 1.1 A typical laptop.
FIGURE 1.2 A user-replaceable battery after being removed
from a laptop.
FIGURE 1.3 The top and bottom rows of a typical Windows
laptop keyboard. Use...
FIGURE 1.4 Preparing to disconnect the keyboard interface
TABLE 15.2 Common DDR4 Speeds
TABLE 15.3 Common DDR5 Speeds
Chapter 16
TABLE 16.1 HDD Speeds and Recommended Uses
Chapter 17
TABLE 17.1 PCIe Slots and Versions
Chapter 18
TABLE 18.1 Selected Recent AMD and Intel Multicore CPUs
Chapter 19
TABLE 19.1 : POWER CONNECTORS AND USES
Chapter 23
TABLE 23.1 Oracle VirtualBox RAM and Virtual HD
Recommendations
Chapter 25
TABLE 25.1 Example Beep Codes
Chapter 26
TABLE 26.1 RAID Failure
List of Illustrations
Chapter 1
FIGURE 1.1 A typical laptop.
FIGURE 1.2 A user-replaceable battery after being removed
from a laptop.
FIGURE 1.3 The top and bottom rows of a typical Windows
laptop keyboard. Use...
FIGURE 1.4 Preparing to disconnect the keyboard interface
Loading page 10...
cable from a typic...
FIGURE 1.5 From left to right, typical DDR5, DDR4, and
DDR3, SO-DIMM modules...
FIGURE 1.6 Inserting an SODIMM module into place (left)
and after it has bee...
FIGURE 1.7 Connecting an SSD to a USB 3.x adapter cable
before cloning.
FIGURE 1.8 A laptop with provisions for both an M.2 SSD
(left) and a 2.5-inc...
FIGURE 1.9 A laptop 2.5-inch SATA drive after being
detached from the SATA i...
FIGURE 1.10 Removing the mounting hardware from a 2.5-
inch SATA drive.
FIGURE 1.11 An M.2 drive interface before installing an M.2
SSD.
FIGURE 1.12 A wireless network card using the mini-PCIe
interface.
FIGURE 1.13 A wireless network card using the M.2 interface.
Chapter 2
FIGURE 2.1 A simplified diagram of the layers in a typical
LCD display.
FIGURE 2.2 An LCD panel with individually serviceable
components.
FIGURE 2.3 This webcam can be easily replaced if it fails.
FIGURE 2.4 Preparing to remove a failed inverter.
Chapter 3
FIGURE 3.1 USB 3.1 Gen 1 Type-A and USB Type-C ports.
FIGURE 3.2 This 2015 MacBook Air's USB ports support
USB 3.0 (5Gbps) but are...
FIGURE 1.5 From left to right, typical DDR5, DDR4, and
DDR3, SO-DIMM modules...
FIGURE 1.6 Inserting an SODIMM module into place (left)
and after it has bee...
FIGURE 1.7 Connecting an SSD to a USB 3.x adapter cable
before cloning.
FIGURE 1.8 A laptop with provisions for both an M.2 SSD
(left) and a 2.5-inc...
FIGURE 1.9 A laptop 2.5-inch SATA drive after being
detached from the SATA i...
FIGURE 1.10 Removing the mounting hardware from a 2.5-
inch SATA drive.
FIGURE 1.11 An M.2 drive interface before installing an M.2
SSD.
FIGURE 1.12 A wireless network card using the mini-PCIe
interface.
FIGURE 1.13 A wireless network card using the M.2 interface.
Chapter 2
FIGURE 2.1 A simplified diagram of the layers in a typical
LCD display.
FIGURE 2.2 An LCD panel with individually serviceable
components.
FIGURE 2.3 This webcam can be easily replaced if it fails.
FIGURE 2.4 Preparing to remove a failed inverter.
Chapter 3
FIGURE 3.1 USB 3.1 Gen 1 Type-A and USB Type-C ports.
FIGURE 3.2 This 2015 MacBook Air's USB ports support
USB 3.0 (5Gbps) but are...
Loading page 11...
FIGURE 3.3 MiniUSB and MicroUSB ports for USB 2.0
connections compared to a ...
FIGURE 3.4 MiniUSB and MicroUSB cables for USB 2.0
connections compared to a...
FIGURE 3.5 USB Type-A to USB-C and USB Type-A to
Lightning cables for mobile...
FIGURE 3.6 The Bluetooth menu on a typical Windows
laptop.
FIGURE 3.7 Preparing to share Wi-Fi via the Windows
Mobile Hotspot dialog.
FIGURE 3.8 Configuring shortcuts for a touch pen in
Windows 10 and Windows 1...
FIGURE 3.9 Comparing laptop headset, microphone, and
headphone cables, jacks...
FIGURE 3.10 A variety of docking stations made for PCs
(top/middle) and Macs...
FIGURE 3.11 A Wacom drawing pad suitable for use with
both laptops and deskt...
Chapter 4
FIGURE 4.1 Normal (left) versus Airplane mode (right) on a
typical Android s...
FIGURE 4.2 Normal mode (left) on a typical iPhone (iOS)
smartphone versus Ai...
FIGURE 4.3 Typical hotspot settings for an Android
smartphone. Tap Configure...
FIGURE 4.4 Pairing with a Merkury speaker on iPadOS.
(Source: Apple Inc.)
FIGURE 4.5 Pairing with a keyboard on Android. (Source:
Apple Inc.)
FIGURE 4.6 Android location services when turned on (left)
and off (right).(...
connections compared to a ...
FIGURE 3.4 MiniUSB and MicroUSB cables for USB 2.0
connections compared to a...
FIGURE 3.5 USB Type-A to USB-C and USB Type-A to
Lightning cables for mobile...
FIGURE 3.6 The Bluetooth menu on a typical Windows
laptop.
FIGURE 3.7 Preparing to share Wi-Fi via the Windows
Mobile Hotspot dialog.
FIGURE 3.8 Configuring shortcuts for a touch pen in
Windows 10 and Windows 1...
FIGURE 3.9 Comparing laptop headset, microphone, and
headphone cables, jacks...
FIGURE 3.10 A variety of docking stations made for PCs
(top/middle) and Macs...
FIGURE 3.11 A Wacom drawing pad suitable for use with
both laptops and deskt...
Chapter 4
FIGURE 4.1 Normal (left) versus Airplane mode (right) on a
typical Android s...
FIGURE 4.2 Normal mode (left) on a typical iPhone (iOS)
smartphone versus Ai...
FIGURE 4.3 Typical hotspot settings for an Android
smartphone. Tap Configure...
FIGURE 4.4 Pairing with a Merkury speaker on iPadOS.
(Source: Apple Inc.)
FIGURE 4.5 Pairing with a keyboard on Android. (Source:
Apple Inc.)
FIGURE 4.6 Android location services when turned on (left)
and off (right).(...
Loading page 12...
FIGURE 4.7 Android location services when turned on (left)
and off (right). ...
FIGURE 4.8 iOS location services (left) and adjusting
location access for a ...
FIGURE 4.9 Using Microsoft 365 to check the edit history of
a document (left...
FIGURE 4.10 Configuring iCloud on an iPad. (Source: Apple
Inc.)
Chapter 5
FIGURE 5.1 A bank website using HTTPS.
Chapter 7
FIGURE 7.1 Front (left) and rear (right) views of a cable
modem with VoIP su...
FIGURE 7.2 Front (top) and rear (bottom) views of a typical
DSL modem with i...
FIGURE 7.3 A typical ONT connected to a home network.
FIGURE 7.4 A typical wireless router.
FIGURE 7.5 A managed switch that also supports SPF
modules.
FIGURE 7.6 A typical unmanaged Gigabit Ethernet switch.
FIGURE 7.7 Typical front (top) and rear (bottom) views of
RJ-45 Ethernet pat...
FIGURE 7.8 Device Manager listing two Ethernet NICs and a
Wi-Fi NIC connecte...
FIGURE 7.9 Typical dual-homed NIC that connects to two
networks for redundan...
FIGURE 7.10 A typical SOHO firewall dialog.
FIGURE 7.11 Typical 12 watt PoE injector.
Chapter 8
and off (right). ...
FIGURE 4.8 iOS location services (left) and adjusting
location access for a ...
FIGURE 4.9 Using Microsoft 365 to check the edit history of
a document (left...
FIGURE 4.10 Configuring iCloud on an iPad. (Source: Apple
Inc.)
Chapter 5
FIGURE 5.1 A bank website using HTTPS.
Chapter 7
FIGURE 7.1 Front (left) and rear (right) views of a cable
modem with VoIP su...
FIGURE 7.2 Front (top) and rear (bottom) views of a typical
DSL modem with i...
FIGURE 7.3 A typical ONT connected to a home network.
FIGURE 7.4 A typical wireless router.
FIGURE 7.5 A managed switch that also supports SPF
modules.
FIGURE 7.6 A typical unmanaged Gigabit Ethernet switch.
FIGURE 7.7 Typical front (top) and rear (bottom) views of
RJ-45 Ethernet pat...
FIGURE 7.8 Device Manager listing two Ethernet NICs and a
Wi-Fi NIC connecte...
FIGURE 7.9 Typical dual-homed NIC that connects to two
networks for redundan...
FIGURE 7.10 A typical SOHO firewall dialog.
FIGURE 7.11 Typical 12 watt PoE injector.
Chapter 8
Loading page 13...
FIGURE 8.1 Typical graph of Wi-Fi 2.4GHz networks
showing how channels other...
FIGURE 8.2 Typical graph of Wi-Fi 5GHz networks showing
how more channels he...
FIGURE 8.3 Enabling Bluetooth on a Windows 11 laptop.
FIGURE 8.4 Selecting Bluetooth as the type of device, and
then select the de...
FIGURE 8.5 Typical antennas used by wireless Internet
service providers.
Chapter 9
FIGURE 9.1 Preparing to view properties for an Ethernet
adapter in Windows 1...
FIGURE 9.2 Entering the Google IP v4 DNS server addresses.
FIGURE 9.3 Using the Google IP v4 DNS server addresses in
Windows 11.
FIGURE 9.4 A Print Management dialog from a Windows Pro
computer.
FIGURE 9.5 Configuring Windows IIS in Windows 10 Pro.
FIGURE 9.6 Configuring a manual proxy server in Windows
10.
Chapter 10
FIGURE 10.1 Class A, B, and C net ID and host ID
comparison.
FIGURE 10.2 Using an online calculator to find out desired
subnet values.
FIGURE 10.3 Seeing your public IP address with
myexternalIP.com.
FIGURE 10.4 The components of an anycast networked IPv6
address.
FIGURE 10.5 A Wi-Fi network adapter with both IPv4 and
showing how channels other...
FIGURE 8.2 Typical graph of Wi-Fi 5GHz networks showing
how more channels he...
FIGURE 8.3 Enabling Bluetooth on a Windows 11 laptop.
FIGURE 8.4 Selecting Bluetooth as the type of device, and
then select the de...
FIGURE 8.5 Typical antennas used by wireless Internet
service providers.
Chapter 9
FIGURE 9.1 Preparing to view properties for an Ethernet
adapter in Windows 1...
FIGURE 9.2 Entering the Google IP v4 DNS server addresses.
FIGURE 9.3 Using the Google IP v4 DNS server addresses in
Windows 11.
FIGURE 9.4 A Print Management dialog from a Windows Pro
computer.
FIGURE 9.5 Configuring Windows IIS in Windows 10 Pro.
FIGURE 9.6 Configuring a manual proxy server in Windows
10.
Chapter 10
FIGURE 10.1 Class A, B, and C net ID and host ID
comparison.
FIGURE 10.2 Using an online calculator to find out desired
subnet values.
FIGURE 10.3 Seeing your public IP address with
myexternalIP.com.
FIGURE 10.4 The components of an anycast networked IPv6
address.
FIGURE 10.5 A Wi-Fi network adapter with both IPv4 and
Loading page 14...
IPv6 link-local addre...
FIGURE 10.6 Setting up a static IP address in Windows.
Chapter 11
FIGURE 11.1 A typical lease obtained and lease expires report
from ipconfig ...
FIGURE 11.2 Adjust the size of the IP Address pool and its
starting and endi...
Chapter 12
FIGURE 12.1 Typical Viasat dish for geosynchronous satellite
Internet servic...
FIGURE 12.2 Typical WISP using a base and relay station.
FIGURE 12.3 Examples of WISP long-distance directional
and short-distance an...
FIGURE 12.4 Typical MAN versus LAN comparison.
Chapter 13
FIGURE 13.1 A crimper designed for RJ-45 and RJ-11 cable.
FIGURE 13.2 Stripping the jacket off a 22 AWG UTP wire.
FIGURE 13.3 Typical hand-held Wi-Fi analyzers.
FIGURE 13.4 Viewing nearby 2.4GHz (left) and 5GHz (right)
Wi-Fi networks wit...
FIGURE 13.5 Typical toner probe.
FIGURE 13.6 A typical cable tester preparing to test a short
Ethernet cable.
FIGURE 13.7 A typical RJ-45 loopback plug.
FIGURE 13.8 A typical network TAP.
Chapter 14
FIGURE 14.1 TP cable (top) and coaxial cable (bottom).
FIGURE 14.2 CAT5e (top) and CAT6 (bottom) cable labels.
FIGURE 10.6 Setting up a static IP address in Windows.
Chapter 11
FIGURE 11.1 A typical lease obtained and lease expires report
from ipconfig ...
FIGURE 11.2 Adjust the size of the IP Address pool and its
starting and endi...
Chapter 12
FIGURE 12.1 Typical Viasat dish for geosynchronous satellite
Internet servic...
FIGURE 12.2 Typical WISP using a base and relay station.
FIGURE 12.3 Examples of WISP long-distance directional
and short-distance an...
FIGURE 12.4 Typical MAN versus LAN comparison.
Chapter 13
FIGURE 13.1 A crimper designed for RJ-45 and RJ-11 cable.
FIGURE 13.2 Stripping the jacket off a 22 AWG UTP wire.
FIGURE 13.3 Typical hand-held Wi-Fi analyzers.
FIGURE 13.4 Viewing nearby 2.4GHz (left) and 5GHz (right)
Wi-Fi networks wit...
FIGURE 13.5 Typical toner probe.
FIGURE 13.6 A typical cable tester preparing to test a short
Ethernet cable.
FIGURE 13.7 A typical RJ-45 loopback plug.
FIGURE 13.8 A typical network TAP.
Chapter 14
FIGURE 14.1 TP cable (top) and coaxial cable (bottom).
FIGURE 14.2 CAT5e (top) and CAT6 (bottom) cable labels.
Loading page 15...
FIGURE 14.3 EIA/TIA T568B and T568A wire pairings and
an assembled UTP cable...
FIGURE 14.4 UTP versus STP cable.
FIGURE 14.5 UTP and STP connectors.
FIGURE 14.6 Inserting wire pairs into a punchdown
connector with a punchdown...
FIGURE 14.7 A typical RJ45 cable with protective wings over
its locking tab ...
FIGURE 14.8 RG6 coax cable connector and interior.
FIGURE 14.9 Bidirectional fiber-optic cables.
FIGURE 14.10 USB 2.0 Type-A and Type-B cables, USB
3.0/3.1/3.2 Type-A and Ty...
FIGURE 14.11 USB 2.0, 3.0, and 3.1 Gen 2 Type-A ports and a
USB 3.1 Gen 2 Ty...
FIGURE 14.12 USB 2.0 and USB 3.0 Type-B ports.
FIGURE 14.13 DB9F RS-232 serial cable with thumbscrews
and DB9M RS-232 seria...
FIGURE 14.14 Thunderbolt 1/2 cable (left) compared to a
USB Type-C (same for...
FIGURE 14.15 VGA cable.
FIGURE 14.16 Two graphics cards with DVI, HDMI, VGA,
and other ports.
FIGURE 14.17 HDMI and DisplayPort cable variations.
FIGURE 14.18 HDMI and DP ports on a typical 3D graphics
card.
FIGURE 14.19 mDP ports on a typical 3D graphics card.
FIGURE 14.20 SATA data and power cables and drive
connectors.
FIGURE 14.21 SATA and eSATA cables.
an assembled UTP cable...
FIGURE 14.4 UTP versus STP cable.
FIGURE 14.5 UTP and STP connectors.
FIGURE 14.6 Inserting wire pairs into a punchdown
connector with a punchdown...
FIGURE 14.7 A typical RJ45 cable with protective wings over
its locking tab ...
FIGURE 14.8 RG6 coax cable connector and interior.
FIGURE 14.9 Bidirectional fiber-optic cables.
FIGURE 14.10 USB 2.0 Type-A and Type-B cables, USB
3.0/3.1/3.2 Type-A and Ty...
FIGURE 14.11 USB 2.0, 3.0, and 3.1 Gen 2 Type-A ports and a
USB 3.1 Gen 2 Ty...
FIGURE 14.12 USB 2.0 and USB 3.0 Type-B ports.
FIGURE 14.13 DB9F RS-232 serial cable with thumbscrews
and DB9M RS-232 seria...
FIGURE 14.14 Thunderbolt 1/2 cable (left) compared to a
USB Type-C (same for...
FIGURE 14.15 VGA cable.
FIGURE 14.16 Two graphics cards with DVI, HDMI, VGA,
and other ports.
FIGURE 14.17 HDMI and DisplayPort cable variations.
FIGURE 14.18 HDMI and DP ports on a typical 3D graphics
card.
FIGURE 14.19 mDP ports on a typical 3D graphics card.
FIGURE 14.20 SATA data and power cables and drive
connectors.
FIGURE 14.21 SATA and eSATA cables.
Loading page 16...
FIGURE 14.22 Installed IDE cable (top) and IDE port
(bottom).
FIGURE 14.23 IDE drive with an 80-wire data cable,
configuration jumpers, an...
FIGURE 14.24 SCSI 50-pin and 68-pin ribbon cables for
internal drives.
Chapter 15
FIGURE 15.1 Installing a DDR4 DIMM on a motherboard.
FIGURE 15.2 A typical DDR4 SODIMM (top) compared to a
DDR DIMM (bottom).
FIGURE 15.3 A typical DDR3 DIMM (top) compared to a
DDR4 DIMM (bottom).
FIGURE 15.4 A typical DDR5 DIMM (top) compared to a
DDR5 SODIMM (bottom).
FIGURE 15.5 A pair of identical DIMMs installed on a DDR4
motherboard.
FIGURE 15.6 Use identical modules in memory slots A2 and
B2 for dual-channel...
Chapter 16
FIGURE 16.1 A typical 3.5-in HDD with its top cover
removed.
FIGURE 16.2 Typical SATA drives in order by size, smallest
to largest dimens...
FIGURE 16.3 A typical 3.5-inch HDD mounted in a drive
cage.
FIGURE 16.4 Pulling the SATA drive away from the laptop's
SATA connector bef...
FIGURE 16.5 Pulling the replacement SATA drive into the
laptop's SATA connec...
FIGURE 16.6 M.2 SSD drive compared with an M.2 wireless
(bottom).
FIGURE 14.23 IDE drive with an 80-wire data cable,
configuration jumpers, an...
FIGURE 14.24 SCSI 50-pin and 68-pin ribbon cables for
internal drives.
Chapter 15
FIGURE 15.1 Installing a DDR4 DIMM on a motherboard.
FIGURE 15.2 A typical DDR4 SODIMM (top) compared to a
DDR DIMM (bottom).
FIGURE 15.3 A typical DDR3 DIMM (top) compared to a
DDR4 DIMM (bottom).
FIGURE 15.4 A typical DDR5 DIMM (top) compared to a
DDR5 SODIMM (bottom).
FIGURE 15.5 A pair of identical DIMMs installed on a DDR4
motherboard.
FIGURE 15.6 Use identical modules in memory slots A2 and
B2 for dual-channel...
Chapter 16
FIGURE 16.1 A typical 3.5-in HDD with its top cover
removed.
FIGURE 16.2 Typical SATA drives in order by size, smallest
to largest dimens...
FIGURE 16.3 A typical 3.5-inch HDD mounted in a drive
cage.
FIGURE 16.4 Pulling the SATA drive away from the laptop's
SATA connector bef...
FIGURE 16.5 Pulling the replacement SATA drive into the
laptop's SATA connec...
FIGURE 16.6 M.2 SSD drive compared with an M.2 wireless
Loading page 17...
card.
FIGURE 16.7 These M.2 NVMe drives (center and bottom)
use the M key connecto...
FIGURE 16.8 A RAID 1 (mirrored) array configured on a
system using an Intel ...
FIGURE 16.9 Inside the shell of a typical 64GB flash drive.
FIGURE 16.10 SD and microSD cards and adapters with
different speed markings...
FIGURE 16.11 Typical SATA optical drive installed in a 5.25-
inch drive bay....
Chapter 17
FIGURE 17.1 Typical ATX motherboard (left) and microATX
motherboard (right).
FIGURE 17.2 Typical ATX port cluster (top) and microATX
port cluster (bottom...
FIGURE 17.3 A typical mini-ITX motherboard optimized for
home theater uses....
FIGURE 17.4 PCI card and PCI slots compared to PCIe ×16
and ×1 slots....
FIGURE 17.5 24-pin ATX (left) and 8-pin EPS12V (right)
power connectors comp...
FIGURE 17.6 Front-mounted (left) and top-mounted SATA
ports from two differe...
FIGURE 17.7 eSATA port (left inset), USB 3.0 port (right
inset), and SATA-eS...
FIGURE 17.8 Typical headers for USB 2.0, USB 3.0, and
front-panel cables.
FIGURE 17.9 Typical headers for four-pin CPU fan (left) and
three-pin system...
FIGURE 17.10 Removing the cover over an M.2 slot in
FIGURE 16.7 These M.2 NVMe drives (center and bottom)
use the M key connecto...
FIGURE 16.8 A RAID 1 (mirrored) array configured on a
system using an Intel ...
FIGURE 16.9 Inside the shell of a typical 64GB flash drive.
FIGURE 16.10 SD and microSD cards and adapters with
different speed markings...
FIGURE 16.11 Typical SATA optical drive installed in a 5.25-
inch drive bay....
Chapter 17
FIGURE 17.1 Typical ATX motherboard (left) and microATX
motherboard (right).
FIGURE 17.2 Typical ATX port cluster (top) and microATX
port cluster (bottom...
FIGURE 17.3 A typical mini-ITX motherboard optimized for
home theater uses....
FIGURE 17.4 PCI card and PCI slots compared to PCIe ×16
and ×1 slots....
FIGURE 17.5 24-pin ATX (left) and 8-pin EPS12V (right)
power connectors comp...
FIGURE 17.6 Front-mounted (left) and top-mounted SATA
ports from two differe...
FIGURE 17.7 eSATA port (left inset), USB 3.0 port (right
inset), and SATA-eS...
FIGURE 17.8 Typical headers for USB 2.0, USB 3.0, and
front-panel cables.
FIGURE 17.9 Typical headers for four-pin CPU fan (left) and
three-pin system...
FIGURE 17.10 Removing the cover over an M.2 slot in
Loading page 18...
preparation for installi...
FIGURE 17.11 Installing an AMD PGA processor.
FIGURE 17.12 Installing an Intel LGA processor.
FIGURE 17.13 A late-model Dell touch-screen laptop
motherboard.
FIGURE 17.14 Top and bottom views of an AMD heat sink fan
(left) and an Inte...
FIGURE 17.15 A typical PCIe video card with two fans for
cooling the GPU and...
Chapter 18
FIGURE 18.1 When the full-screen logo option is disabled in
BIOS/UEFI firmwa...
FIGURE 18.2 Boot options menu.
FIGURE 18.3 Enabling or disabling individual USB ports is
an option availabl...
FIGURE 18.4 USB Legacy mode and XHCI Hand Off
BIOS/UEFI settings.
FIGURE 18.5 AMD fTPM before and after being enabled.
FIGURE 18.6 CPU and Chassis fan displays on a typical
desktop computer; the ...
FIGURE 18.7 A system with three passwords that can be
enabled in BIOS/UEFI s...
FIGURE 18.8 An AMD system with TPM 2.0 enabled as
reported by Security proce...
FIGURE 18.9 Onboard sound before being disabled.
FIGURE 18.10 Disabled onboard video.
FIGURE 18.11 Preparing to disable onboard NIC.
Chapter 19
FIGURE 19.1 A power supply with a manual voltage switch.
FIGURE 17.11 Installing an AMD PGA processor.
FIGURE 17.12 Installing an Intel LGA processor.
FIGURE 17.13 A late-model Dell touch-screen laptop
motherboard.
FIGURE 17.14 Top and bottom views of an AMD heat sink fan
(left) and an Inte...
FIGURE 17.15 A typical PCIe video card with two fans for
cooling the GPU and...
Chapter 18
FIGURE 18.1 When the full-screen logo option is disabled in
BIOS/UEFI firmwa...
FIGURE 18.2 Boot options menu.
FIGURE 18.3 Enabling or disabling individual USB ports is
an option availabl...
FIGURE 18.4 USB Legacy mode and XHCI Hand Off
BIOS/UEFI settings.
FIGURE 18.5 AMD fTPM before and after being enabled.
FIGURE 18.6 CPU and Chassis fan displays on a typical
desktop computer; the ...
FIGURE 18.7 A system with three passwords that can be
enabled in BIOS/UEFI s...
FIGURE 18.8 An AMD system with TPM 2.0 enabled as
reported by Security proce...
FIGURE 18.9 Onboard sound before being disabled.
FIGURE 18.10 Disabled onboard video.
FIGURE 18.11 Preparing to disable onboard NIC.
Chapter 19
FIGURE 19.1 A power supply with a manual voltage switch.
Loading page 19...
FIGURE 19.2 A 24-pin ATX power cable.
FIGURE 19.3 EPS12V, ATX12V, and PCIe power leads.
FIGURE 19.4 Molex and SATA power leads.
FIGURE 19.5 Mini (Berg) power lead.
FIGURE 19.6 20 to 24-pin ATX power adapter.
FIGURE 19.7 A traditional (nonmodular) power supply.
FIGURE 19.8 A fully modular power supply.
FIGURE 19.9 A high-quality 750-watt power supply.
FIGURE 19.10 A typical PC power supply and mounting
screws.
FIGURE 19.11 A
FIGURE 19.12 B
FIGURE 19.13 C
FIGURE 19.14 D
Chapter 20
FIGURE 20.1 Ethernet (RJ-45) (top) and USB 2.0 (bottom)
ports on a typical M...
FIGURE 20.2 Wireless configuration dialogs from a typical
SOHO MFD (Epson ET...
FIGURE 20.3 Verifying that File And Printer Sharing and
Network Discovery ar...
FIGURE 20.4 Sharing a printer in Windows.
FIGURE 20.5 A Microsoft OneNote for Windows 10 printer
dialog.
FIGURE 20.6 Additional settings (not available on all
printers).
FIGURE 20.7 Enabling PrintService ➣ Operational Print
Logging.
FIGURE 19.3 EPS12V, ATX12V, and PCIe power leads.
FIGURE 19.4 Molex and SATA power leads.
FIGURE 19.5 Mini (Berg) power lead.
FIGURE 19.6 20 to 24-pin ATX power adapter.
FIGURE 19.7 A traditional (nonmodular) power supply.
FIGURE 19.8 A fully modular power supply.
FIGURE 19.9 A high-quality 750-watt power supply.
FIGURE 19.10 A typical PC power supply and mounting
screws.
FIGURE 19.11 A
FIGURE 19.12 B
FIGURE 19.13 C
FIGURE 19.14 D
Chapter 20
FIGURE 20.1 Ethernet (RJ-45) (top) and USB 2.0 (bottom)
ports on a typical M...
FIGURE 20.2 Wireless configuration dialogs from a typical
SOHO MFD (Epson ET...
FIGURE 20.3 Verifying that File And Printer Sharing and
Network Discovery ar...
FIGURE 20.4 Sharing a printer in Windows.
FIGURE 20.5 A Microsoft OneNote for Windows 10 printer
dialog.
FIGURE 20.6 Additional settings (not available on all
printers).
FIGURE 20.7 Enabling PrintService ➣ Operational Print
Logging.
Loading page 20...
FIGURE 20.8 A logged print job.
Chapter 21
FIGURE 21.1 Pickup rollers in a typical laser printer.
FIGURE 21.2 Toner cartridge in a typical printer with a
separate imaging dru...
FIGURE 21.3 Typical ink cartridges after installation.
FIGURE 21.4 Ink levels in an inkjet printer with ink tanks.
FIGURE 21.5 Carriage belt and printheads in an inkjet
printer with ink tanks...
FIGURE 21.6 A typical duplexing assembly after removal to
clear a paper jam.
FIGURE 21.7 Preparing to calibrate (align) an inkjet printer.
FIGURE 21.8 The parts of a typical impact printer.
Chapter 22
FIGURE 22.1 Comparing SaaS, PaaS, and IaaS cloud service
categories.
Chapter 23
FIGURE 23.1 A nonvirtualized system.
FIGURE 23.2 Type 1 and Type 2 virtualization compared.
FIGURE 23.3 Oracle VM VirtualBox configuring a VM for
Windows 8.1.
FIGURE 23.4 Oracle VM VirtualBox creating a VM for
running macOS.
FIGURE 23.5 Intel (top) and AMD (bottom) settings in
typical UEFI system fir...
FIGURE 23.6 Creating a dynamically allocated virtual disk
image during VM cr...
FIGURE 23.7 This computer supports Hyper-V virtualization.
Chapter 21
FIGURE 21.1 Pickup rollers in a typical laser printer.
FIGURE 21.2 Toner cartridge in a typical printer with a
separate imaging dru...
FIGURE 21.3 Typical ink cartridges after installation.
FIGURE 21.4 Ink levels in an inkjet printer with ink tanks.
FIGURE 21.5 Carriage belt and printheads in an inkjet
printer with ink tanks...
FIGURE 21.6 A typical duplexing assembly after removal to
clear a paper jam.
FIGURE 21.7 Preparing to calibrate (align) an inkjet printer.
FIGURE 21.8 The parts of a typical impact printer.
Chapter 22
FIGURE 22.1 Comparing SaaS, PaaS, and IaaS cloud service
categories.
Chapter 23
FIGURE 23.1 A nonvirtualized system.
FIGURE 23.2 Type 1 and Type 2 virtualization compared.
FIGURE 23.3 Oracle VM VirtualBox configuring a VM for
Windows 8.1.
FIGURE 23.4 Oracle VM VirtualBox creating a VM for
running macOS.
FIGURE 23.5 Intel (top) and AMD (bottom) settings in
typical UEFI system fir...
FIGURE 23.6 Creating a dynamically allocated virtual disk
image during VM cr...
FIGURE 23.7 This computer supports Hyper-V virtualization.
Loading page 21...
FIGURE 23.8 Preparing to install Hyper-V features.
FIGURE 23.9 Simplified diagram of a typical on-premises
VDI environment.
Chapter 24
FIGURE 24.1 CompTIA's six-step troubleshooting
methodology.
Chapter 25
FIGURE 25.1 A typical Windows STOP error (Blue Screen of
Death).
FIGURE 25.2 The macOS pinwheel.
FIGURE 25.3 A properly installed chassis power switch.
FIGURE 25.4 Installing a drive bay fan in a typical desktop
computer.
FIGURE 25.5 An extremely dirty system with virtually no
airflow.
FIGURE 25.6 HWMonitor displays temperature, voltages,
and fan speed for the ...
FIGURE 25.7 A typical liquid cooling kit for Intel or AMD
processors.
FIGURE 25.8 A standard DDR4 DIMM (top) compared to a
high-performance model ...
FIGURE 25.9 Leaking, swollen capacitors compared to intact
capacitors.
FIGURE 25.10 The Compatibility tab for an app in Windows
can be used to help...
FIGURE 25.11 Replace the RTC battery on a desktop or
laptop to solve a probl...
Chapter 26
FIGURE 26.1 A typical motherboard's drive activity (HDD)
LED and power LED c...
FIGURE 23.9 Simplified diagram of a typical on-premises
VDI environment.
Chapter 24
FIGURE 24.1 CompTIA's six-step troubleshooting
methodology.
Chapter 25
FIGURE 25.1 A typical Windows STOP error (Blue Screen of
Death).
FIGURE 25.2 The macOS pinwheel.
FIGURE 25.3 A properly installed chassis power switch.
FIGURE 25.4 Installing a drive bay fan in a typical desktop
computer.
FIGURE 25.5 An extremely dirty system with virtually no
airflow.
FIGURE 25.6 HWMonitor displays temperature, voltages,
and fan speed for the ...
FIGURE 25.7 A typical liquid cooling kit for Intel or AMD
processors.
FIGURE 25.8 A standard DDR4 DIMM (top) compared to a
high-performance model ...
FIGURE 25.9 Leaking, swollen capacitors compared to intact
capacitors.
FIGURE 25.10 The Compatibility tab for an app in Windows
can be used to help...
FIGURE 25.11 Replace the RTC battery on a desktop or
laptop to solve a probl...
Chapter 26
FIGURE 26.1 A typical motherboard's drive activity (HDD)
LED and power LED c...
Loading page 22...
FIGURE 26.2 Correctly installed front-panel LED and other
cables.
FIGURE 26.3 A data drive reaching 100 percent active time
during complex fil...
FIGURE 26.4 This system drive needs to free up about 75GB
more space.
FIGURE 26.5 Windows Boot Manager is the default boot
drive on a Windows syst...
FIGURE 26.6 A physical drive is the default boot drive on
systems running Li...
FIGURE 26.7 SMART data from a Western Digital SATA
drive indicates no issues...
FIGURE 26.8 CrystalDiskMark IOPS test of a 5400rpm
SATA drive.
FIGURE 26.9 CrystalDiskMark IOPS test of a typical SATA
SSD drive.
FIGURE 26.10 Disk Management shows both partitions and
assigned drive letter...
Chapter 27
FIGURE 27.1 Selecting the correct data source.
FIGURE 27.2 This display is set to use the recommended
resolution.
FIGURE 27.3 Using JScreenFix to try to repair a stuck or
dead pixel.
FIGURE 27.4 A PCIe video card being removed from its
expansion slot. When pr...
FIGURE 27.5 Reconnecting the PCIe power cable to a PCIe
video card.
FIGURE 27.6 The Cool preset color mode on a Dell display.
FIGURE 27.7 Previewing the Warm preset color mode on a
cables.
FIGURE 26.3 A data drive reaching 100 percent active time
during complex fil...
FIGURE 26.4 This system drive needs to free up about 75GB
more space.
FIGURE 26.5 Windows Boot Manager is the default boot
drive on a Windows syst...
FIGURE 26.6 A physical drive is the default boot drive on
systems running Li...
FIGURE 26.7 SMART data from a Western Digital SATA
drive indicates no issues...
FIGURE 26.8 CrystalDiskMark IOPS test of a 5400rpm
SATA drive.
FIGURE 26.9 CrystalDiskMark IOPS test of a typical SATA
SSD drive.
FIGURE 26.10 Disk Management shows both partitions and
assigned drive letter...
Chapter 27
FIGURE 27.1 Selecting the correct data source.
FIGURE 27.2 This display is set to use the recommended
resolution.
FIGURE 27.3 Using JScreenFix to try to repair a stuck or
dead pixel.
FIGURE 27.4 A PCIe video card being removed from its
expansion slot. When pr...
FIGURE 27.5 Reconnecting the PCIe power cable to a PCIe
video card.
FIGURE 27.6 The Cool preset color mode on a Dell display.
FIGURE 27.7 Previewing the Warm preset color mode on a
Loading page 23...
Dell display; note th...
FIGURE 27.8 A three-ring (combined microphone/speaker
or headset) jack at le...
Chapter 28
FIGURE 28.1 Using the battery and device maintenance
menu on a Samsung Andro...
FIGURE 28.2 Using the Touchpad menu on Windows 11 to
reduce touchpad sensiti...
FIGURE 28.3 Preparing to calibrate a touch screen or
touchpad in Windows wit...
FIGURE 28.4 Calibrating an Android touch screen with the
Touchscreen Calibra...
Chapter 30
FIGURE 30.1 Examining the current setting for IPv4 LSO.
FIGURE 30.2 Selecting QoS settings suitable for VoIP and
media streaming in ...
FIGURE 30.3 Preparing to manually enter preferred DNS
servers.
FIGURE 27.8 A three-ring (combined microphone/speaker
or headset) jack at le...
Chapter 28
FIGURE 28.1 Using the battery and device maintenance
menu on a Samsung Andro...
FIGURE 28.2 Using the Touchpad menu on Windows 11 to
reduce touchpad sensiti...
FIGURE 28.3 Preparing to calibrate a touch screen or
touchpad in Windows wit...
FIGURE 28.4 Calibrating an Android touch screen with the
Touchscreen Calibra...
Chapter 30
FIGURE 30.1 Examining the current setting for IPv4 LSO.
FIGURE 30.2 Selecting QoS settings suitable for VoIP and
media streaming in ...
FIGURE 30.3 Preparing to manually enter preferred DNS
servers.
Loading page 24...
Loading page 25...
Loading page 26...
WILEY BOOKS IN THE CERTMIKE SERIES
CompTIA ITF+ CertMike: Prepare. Practice.
Pass the Test! Get Certified! Exam FC0-U61
by Mike Chapple
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Pass the Test! Get Certified! Core 1 Exam 220-
1101
by Mike Chapple and Mark Soper
(ISBN 9781119898092)
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Pass the Test! Get Certified! Core 2 Exam 220-
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by Mike Chapple
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CompTIA A+ CertMike: Prepare. Practice.
Pass the Test! Get Certified! Core 1 Exam 220-
1101
by Mike Chapple and Mark Soper
(ISBN 9781119898092)
CompTIA A+ CertMike: Prepare. Practice.
Pass the Test! Get Certified! Core 2 Exam 220-
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by Mike Chapple and Mark Soper
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Loading page 27...
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Loading page 28...
CompTIA® A+® CertMike
Prepare. Practice. Pass the Test! Get
Certified!
Core 1 Exam 220-1101
Mike Chapple
Mark Soper
Prepare. Practice. Pass the Test! Get
Certified!
Core 1 Exam 220-1101
Mike Chapple
Mark Soper
Loading page 29...
Copyright © 2023 by John Wiley & Sons, Inc. All rights reserved.
Published by John Wiley & Sons, Inc., Hoboken, New Jersey.
Published simultaneously in Canada and the United Kingdom.
ISBN: 978-1-119-89809-2
ISBN: 978-1-119-89811-5 (ebk.)
ISBN: 978-1-119-89810-8 (ebk.)
No part of this publication may be reproduced, stored in a retrieval system, or transmitted in
any form or by any means, electronic, mechanical, photocopying, recording, scanning, or
otherwise, except as permitted under Section 107 or 108 of the 1976 United States Copyright
Act, without either the prior written permission of the Publisher, or authorization through
payment of the appropriate per-copy fee to the Copyright Clearance Center, Inc., 222
Rosewood Drive, Danvers, MA 01923, (978) 750-8400, fax (978) 750-4470, or on the web at
www.copyright.com. Requests to the Publisher for permission should be addressed to the
Permissions Department, John Wiley & Sons, Inc., 111 River Street, Hoboken, NJ 07030,
(201) 748-6011, fax (201) 748-6008, or online at www.wiley.com/go/permission.
Trademarks: WILEY, 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 CompTIA, Inc. All other trademarks are the property of their respective owners.
John Wiley & Sons, Inc. is not associated with any product or vendor mentioned in this book.
Limit of Liability/Disclaimer of Warranty: While the publisher and authors have used
their best efforts in preparing this book, they make no representations or warranties with
respect to the accuracy or completeness of the contents of this book and specifically disclaim
any implied warranties of merchantability or fitness for a particular purpose. No warranty
may be created or extended by sales representatives or written sales materials. The advice and
strategies contained herein may not be suitable for your situation. You should consult with a
professional where appropriate. Further, readers should be aware that websites listed in this
work may have changed or disappeared between when this work was written and when it is
read. Neither the publisher nor authors shall be liable for any loss of profit or any other
commercial damages, including but not limited to special, incidental, consequential, or other
damages.
For general information on our other products and services or for technical support, please
contact our Customer Care Department within the United States at (800) 762-2974, outside
the United States 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 formats. For more information about Wiley products,
visit our web site at www.wiley.com.
Library of Congress Control Number: 2022941414
Cover design: Wiley
Published by John Wiley & Sons, Inc., Hoboken, New Jersey.
Published simultaneously in Canada and the United Kingdom.
ISBN: 978-1-119-89809-2
ISBN: 978-1-119-89811-5 (ebk.)
ISBN: 978-1-119-89810-8 (ebk.)
No part of this publication may be reproduced, stored in a retrieval system, or transmitted in
any form or by any means, electronic, mechanical, photocopying, recording, scanning, or
otherwise, except as permitted under Section 107 or 108 of the 1976 United States Copyright
Act, without either the prior written permission of the Publisher, or authorization through
payment of the appropriate per-copy fee to the Copyright Clearance Center, Inc., 222
Rosewood Drive, Danvers, MA 01923, (978) 750-8400, fax (978) 750-4470, or on the web at
www.copyright.com. Requests to the Publisher for permission should be addressed to the
Permissions Department, John Wiley & Sons, Inc., 111 River Street, Hoboken, NJ 07030,
(201) 748-6011, fax (201) 748-6008, or online at www.wiley.com/go/permission.
Trademarks: WILEY, 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 CompTIA, Inc. All other trademarks are the property of their respective owners.
John Wiley & Sons, Inc. is not associated with any product or vendor mentioned in this book.
Limit of Liability/Disclaimer of Warranty: While the publisher and authors have used
their best efforts in preparing this book, they make no representations or warranties with
respect to the accuracy or completeness of the contents of this book and specifically disclaim
any implied warranties of merchantability or fitness for a particular purpose. No warranty
may be created or extended by sales representatives or written sales materials. The advice and
strategies contained herein may not be suitable for your situation. You should consult with a
professional where appropriate. Further, readers should be aware that websites listed in this
work may have changed or disappeared between when this work was written and when it is
read. Neither the publisher nor authors shall be liable for any loss of profit or any other
commercial damages, including but not limited to special, incidental, consequential, or other
damages.
For general information on our other products and services or for technical support, please
contact our Customer Care Department within the United States at (800) 762-2974, outside
the United States 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 formats. For more information about Wiley products,
visit our web site at www.wiley.com.
Library of Congress Control Number: 2022941414
Cover design: Wiley
Loading page 30...
To my Aunt Jane, who has given so generously to me my entire life.
I owe you more than I can ever express. Thank you.
— Mark Soper
I owe you more than I can ever express. Thank you.
— Mark Soper
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