CompTIA A+ CertMike: Core 1 Exam 220-1101 (2023)

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Table of ContentsCOVERWILEY BOOKS IN THE CERTMIKE SERIESTITLE PAGECOPYRIGHTDEDICATIONACKNOWLEDGMENTSABOUT THE AUTHORSABOUT THE TECHNICAL EDITORINTRODUCTIONTHE A+ PROGRAMWHAT DOES THIS BOOK COVER?CORE 1 EXAM 220-1101 EXAM OBJECTIVES220-1101 CERTIFICATION EXAM OBJECTIVE MAPHOW TO CONTACT THE PUBLISHERPART I: Domain 1.0: Mobile DevicesCHAPTER 1: Laptop HardwareWHAT IS A LAPTOP?LAPTOP BATTERY POWERLAPTOP KEYBOARD AND SPECIAL LAPTOP KEYSLAPTOP RAMMIGRATING DATA FROM AN HDD TO AN SSDREPLACING HDDs AND SSDsWIRELESS CARDSPHYSICAL PRIVACY WITH BIOMETRICSPHYSICAL PRIVACY WITH NEAR-FIELD SCANNERSCHAPTER 2: Mobile Device DisplaysMOBILE DEVICE DISPLAY TYPES

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ORGANIC LIGHT-EMITTING DIODEMOBILE DISPLAY COMPONENTSCHAPTER 3: Mobile Device Ports and AccessoriesCONNECTION METHODSACCESSORIESDOCKING STATIONSPORT REPLICATORTRACKPAD/DRAWING PADCHAPTER 4: Mobile Device Network Connectivity andApplication SupportWIRELESS/CELLULAR DATA NETWORK(ENABLE/DISABLE)BLUETOOTHLOCATION SERVICESMOBILE DEVICE MANAGEMENT/MOBILEAPPLICATION MANAGEMENTMOBILE DEVICE SYNCHRONIZATIONPART II: Domain 2.0: NetworkingCHAPTER 5: TCP/IP NetworkingWHAT IS TCP/IP?TCP VS. UDPCHAPTER 6: TCP/IP Ports and ProtocolsWHAT ARE PORTS?PORTS AND PROTOCOLSCHAPTER 7: Networking HardwareCABLE MODEMDIGITAL SUBSCRIBER LINEOPTICAL NETWORK TERMINALROUTERSSWITCHES

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ACCESS POINTSPATCH PANELNETWORK INTERFACE CARDFIREWALLPOWER OVER ETHERNETHUBSOFTWARE-DEFINED NETWORKINGCHAPTER 8: Wireless Networking ProtocolsFREQUENCIESCHANNELS802.11BLUETOOTHLONG-RANGE FIXED WIRELESSNFCRADIO-FREQUENCY IDENTIFICATIONCHAPTER 9: Networked Host ServicesSERVER ROLESINTERNET APPLIANCESLEGACY/EMBEDDED SYSTEMSINTERNET OF THINGS DEVICESCHAPTER 10: Installing and Configuring NetworksINTERNET PROTOCOL ADDRESSINGCHAPTER 11: Advanced Network ConfigurationDNSDHCPVIRTUAL LANVIRTUAL PRIVATE NETWORKCHAPTER 12: Internet Connection TypesINTERNET CONNECTION TYPES

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NETWORK TYPESCHAPTER 13: Networking ToolsWHAT ARE NETWORK TOOLS USED FOR?CRIMPERCABLE STRIPPERWI-FI ANALYZERTONER PROBECABLE TESTERLOOPBACK PLUGNETWORK TAPPART III: Domain 3.0: HardwareCHAPTER 14: Cables and ConnectorsNETWORK CABLESPERIPHERAL CABLES AND CONNECTORSVIDEO CABLES AND CONNECTORSHARD DRIVE CABLES AND CONNECTORSCHAPTER 15: Random Access Memory (RAM)RAM TYPESMEMORY CONFIGURATIONCHAPTER 16: Storage DevicesHARD DRIVESSSDsDRIVE CONFIGURATIONREMOVABLE STORAGECHAPTER 17: MotherboardsMOTHERBOARD FORM FACTORSMOTHERBOARD CONNECTOR TYPESMOTHERBOARD COMPATIBILITYCOOLING

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CHAPTER 18: Booting, CPUs, and Expansion CardsBASIC INPUT/OUTPUT SYSTEM AND UNIFIEDEXTENSIBLE FIRMWARE INTERFACE SETTINGSENCRYPTIONCPU ARCHITECTUREEXPANSION CARDSCHAPTER 19: Power SuppliesINPUT 110-120 VAC VS. 220-240 VACOUTPUT 3.3V VS. 5V VS. 12V20-PIN TO 24-PIN MOTHERBOARD ADAPTERREDUNDANT POWER SUPPLYMODULAR POWER SUPPLYWATTAGE RATINGPOWER SUPPLY REPLACEMENT PROCESSCHAPTER 20: Printer and Multifunction DeviceConfigurationPROPERLY UNBOXING A DEVICE—SETUPLOCATION CONSIDERATIONSUSE APPROPRIATE DRIVERS FOR A GIVEN OSDEVICE CONNECTIVITYPUBLIC/SHARED DEVICESCONFIGURATION SETTINGSSECURITYNETWORK SCAN SERVICESAUTOMATIC DOCUMENT FEEDER/FLATBEDSCANNERCHAPTER 21: Printer Consumable ReplacementLASER PRINTERSINKJET PRINTERSTHERMAL PRINTERS

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IMPACT3-D PRINTERSPART IV: Domain 4.0: Virtualization and Cloud ComputingCHAPTER 22: Cloud ComputingWHAT IS CLOUD COMPUTING?CLOUD DEPLOYMENT MODELSCLOUD CHARACTERISTICSCHAPTER 23: VirtualizationPURPOSE OF VIRTUAL MACHINESRESOURCE REQUIREMENTSSECURITY REQUIREMENTSPART V: Domain 5.0: Hardware and Network TroubleshootingCHAPTER 24: Troubleshooting MethodologyTROUBLESHOOTING METHODOLOGYCHAPTER 25: Troubleshooting Motherboards, RAM, CPU,and PowerCOMMON SYMPTOMSPOWER-ON SELF-TEST BEEPSPROPRIETARY CRASH SCREENS (BLUE SCREEN OFDEATH/PINWHEEL)BLACK SCREENNO POWERSLUGGISH PERFORMANCEOVERHEATINGBURNING SMELLCAPACITOR SWELLINGINTERMITTENT SHUTDOWNAPPLICATION CRASHESGRINDING NOISEINACCURATE SYSTEM DATE/TIME

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CHAPTER 26: Troubleshooting StorageCOMMON SYMPTOMS AND SOLUTIONSCHAPTER 27: Troubleshooting VideoCOMMON SYMPTOMS AND SOLUTIONSCHAPTER 28: Troubleshooting Mobile DevicesCOMMON SYMPTOMSCHAPTER 29: Troubleshooting PrintersCOMMON SYMPTOMS AND SOLUTIONSCHAPTER 30: Troubleshooting NetworksCOMMON SYMPTOMSINDEXEND USER LICENSE AGREEMENTList of TablesChapter 4TABLE 4.1 2G-3G-4G-5G Quick ReferenceChapter 8TABLE 8.1 Wi-Fi 1 Through Wi-Fi 6 Speeds and FrequenciesChapter 10TABLE 10.1 Reserved Private IP Addresses by ClassChapter 12TABLE 12.1 Residential Satellite Internet Service ProviderComparisonChapter 14TABLE 14.1 CAT5-5e-6-6a SpecificationsTABLE 14.2 EIA/TIA T568A and T568B Wiring StandardsTABLE 14.3 USB 3.0/3.1/3.2 Speeds and Port/Cable TypesChapter 15

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TABLE 15.1 Common DDR3 SpeedsTABLE 15.2 Common DDR4 SpeedsTABLE 15.3 Common DDR5 SpeedsChapter 16TABLE 16.1 HDD Speeds and Recommended UsesChapter 17TABLE 17.1 PCIe Slots and VersionsChapter 18TABLE 18.1 Selected Recent AMD and Intel Multicore CPUsChapter 19TABLE 19.1 : POWER CONNECTORS AND USESChapter 23TABLE 23.1 Oracle VirtualBox RAM and Virtual HDRecommendationsChapter 25TABLE 25.1 Example Beep CodesChapter 26TABLE 26.1 RAID FailureList of IllustrationsChapter 1FIGURE 1.1 A typical laptop.FIGURE 1.2 A user-replaceable battery after being removedfrom a laptop.FIGURE 1.3 The top and bottom rows of a typical Windowslaptop keyboard. Use...FIGURE 1.4 Preparing to disconnect the keyboard interface

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cable from a typic...FIGURE 1.5 From left to right, typical DDR5, DDR4, andDDR3, 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 cablebefore 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 beingdetached 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.2SSD.FIGURE 1.12 A wireless network card using the mini-PCIeinterface.FIGURE 1.13 A wireless network card using the M.2 interface.Chapter 2FIGURE 2.1 A simplified diagram of the layers in a typicalLCD display.FIGURE 2.2 An LCD panel with individually serviceablecomponents.FIGURE 2.3 This webcam can be easily replaced if it fails.FIGURE 2.4 Preparing to remove a failed inverter.Chapter 3FIGURE 3.1 USB 3.1 Gen 1 Type-A and USB Type-C ports.FIGURE 3.2 This 2015 MacBook Air's USB ports supportUSB 3.0 (5Gbps) but are...

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FIGURE 3.3 MiniUSB and MicroUSB ports for USB 2.0connections compared to a ...FIGURE 3.4 MiniUSB and MicroUSB cables for USB 2.0connections compared to a...FIGURE 3.5 USB Type-A to USB-C and USB Type-A toLightning cables for mobile...FIGURE 3.6 The Bluetooth menu on a typical Windowslaptop.FIGURE 3.7 Preparing to share Wi-Fi via the WindowsMobile Hotspot dialog.FIGURE 3.8 Configuring shortcuts for a touch pen inWindows 10 and Windows 1...FIGURE 3.9 Comparing laptop headset, microphone, andheadphone 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 withboth laptops and deskt...Chapter 4FIGURE 4.1 Normal (left) versus Airplane mode (right) on atypical Android s...FIGURE 4.2 Normal mode (left) on a typical iPhone (iOS)smartphone versus Ai...FIGURE 4.3 Typical hotspot settings for an Androidsmartphone. 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).(...

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FIGURE 4.7 Android location services when turned on (left)and off (right). ...FIGURE 4.8 iOS location services (left) and adjustinglocation access for a ...FIGURE 4.9 Using Microsoft 365 to check the edit history ofa document (left...FIGURE 4.10 Configuring iCloud on an iPad. (Source: AppleInc.)Chapter 5FIGURE 5.1 A bank website using HTTPS.Chapter 7FIGURE 7.1 Front (left) and rear (right) views of a cablemodem with VoIP su...FIGURE 7.2 Front (top) and rear (bottom) views of a typicalDSL 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 SPFmodules.FIGURE 7.6 A typical unmanaged Gigabit Ethernet switch.FIGURE 7.7 Typical front (top) and rear (bottom) views ofRJ-45 Ethernet pat...FIGURE 7.8 Device Manager listing two Ethernet NICs and aWi-Fi NIC connecte...FIGURE 7.9 Typical dual-homed NIC that connects to twonetworks for redundan...FIGURE 7.10 A typical SOHO firewall dialog.FIGURE 7.11 Typical 12 watt PoE injector.Chapter 8

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FIGURE 8.1 Typical graph of Wi-Fi 2.4GHz networksshowing how channels other...FIGURE 8.2 Typical graph of Wi-Fi 5GHz networks showinghow more channels he...FIGURE 8.3 Enabling Bluetooth on a Windows 11 laptop.FIGURE 8.4 Selecting Bluetooth as the type of device, andthen select the de...FIGURE 8.5 Typical antennas used by wireless Internetservice providers.Chapter 9FIGURE 9.1 Preparing to view properties for an Ethernetadapter 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 inWindows 11.FIGURE 9.4 A Print Management dialog from a Windows Procomputer.FIGURE 9.5 Configuring Windows IIS in Windows 10 Pro.FIGURE 9.6 Configuring a manual proxy server in Windows10.Chapter 10FIGURE 10.1 Class A, B, and C net ID and host IDcomparison.FIGURE 10.2 Using an online calculator to find out desiredsubnet values.FIGURE 10.3 Seeing your public IP address withmyexternalIP.com.FIGURE 10.4 The components of an anycast networked IPv6address.FIGURE 10.5 A Wi-Fi network adapter with both IPv4 and

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IPv6 link-local addre...FIGURE 10.6 Setting up a static IP address in Windows.Chapter 11FIGURE 11.1 A typical lease obtained and lease expires reportfrom ipconfig ...FIGURE 11.2 Adjust the size of the IP Address pool and itsstarting and endi...Chapter 12FIGURE 12.1 Typical Viasat dish for geosynchronous satelliteInternet servic...FIGURE 12.2 Typical WISP using a base and relay station.FIGURE 12.3 Examples of WISP long-distance directionaland short-distance an...FIGURE 12.4 Typical MAN versus LAN comparison.Chapter 13FIGURE 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 shortEthernet cable.FIGURE 13.7 A typical RJ-45 loopback plug.FIGURE 13.8 A typical network TAP.Chapter 14FIGURE 14.1 TP cable (top) and coaxial cable (bottom).FIGURE 14.2 CAT5e (top) and CAT6 (bottom) cable labels.

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FIGURE 14.3 EIA/TIA T568B and T568A wire pairings andan 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 punchdownconnector with a punchdown...FIGURE 14.7 A typical RJ45 cable with protective wings overits 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, USB3.0/3.1/3.2 Type-A and Ty...FIGURE 14.11 USB 2.0, 3.0, and 3.1 Gen 2 Type-A ports and aUSB 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 thumbscrewsand DB9M RS-232 seria...FIGURE 14.14 Thunderbolt 1/2 cable (left) compared to aUSB 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 graphicscard.FIGURE 14.19 mDP ports on a typical 3D graphics card.FIGURE 14.20 SATA data and power cables and driveconnectors.FIGURE 14.21 SATA and eSATA cables.

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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 forinternal drives.Chapter 15FIGURE 15.1 Installing a DDR4 DIMM on a motherboard.FIGURE 15.2 A typical DDR4 SODIMM (top) compared to aDDR DIMM (bottom).FIGURE 15.3 A typical DDR3 DIMM (top) compared to aDDR4 DIMM (bottom).FIGURE 15.4 A typical DDR5 DIMM (top) compared to aDDR5 SODIMM (bottom).FIGURE 15.5 A pair of identical DIMMs installed on a DDR4motherboard.FIGURE 15.6 Use identical modules in memory slots A2 andB2 for dual-channel...Chapter 16FIGURE 16.1 A typical 3.5-in HDD with its top coverremoved.FIGURE 16.2 Typical SATA drives in order by size, smallestto largest dimens...FIGURE 16.3 A typical 3.5-inch HDD mounted in a drivecage.FIGURE 16.4 Pulling the SATA drive away from the laptop'sSATA connector bef...FIGURE 16.5 Pulling the replacement SATA drive into thelaptop's SATA connec...FIGURE 16.6 M.2 SSD drive compared with an M.2 wireless

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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 asystem using an Intel ...FIGURE 16.9 Inside the shell of a typical 64GB flash drive.FIGURE 16.10 SD and microSD cards and adapters withdifferent speed markings...FIGURE 16.11 Typical SATA optical drive installed in a 5.25-inch drive bay....Chapter 17FIGURE 17.1 Typical ATX motherboard (left) and microATXmotherboard (right).FIGURE 17.2 Typical ATX port cluster (top) and microATXport cluster (bottom...FIGURE 17.3 A typical mini-ITX motherboard optimized forhome theater uses....FIGURE 17.4 PCI card and PCI slots compared to PCIe ×16and ×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 SATAports from two differe...FIGURE 17.7 eSATA port (left inset), USB 3.0 port (rightinset), and SATA-eS...FIGURE 17.8 Typical headers for USB 2.0, USB 3.0, andfront-panel cables.FIGURE 17.9 Typical headers for four-pin CPU fan (left) andthree-pin system...FIGURE 17.10 Removing the cover over an M.2 slot in

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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 laptopmotherboard.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 forcooling the GPU and...Chapter 18FIGURE 18.1 When the full-screen logo option is disabled inBIOS/UEFI firmwa...FIGURE 18.2 Boot options menu.FIGURE 18.3 Enabling or disabling individual USB ports isan option availabl...FIGURE 18.4 USB Legacy mode and XHCI Hand OffBIOS/UEFI settings.FIGURE 18.5 AMD fTPM before and after being enabled.FIGURE 18.6 CPU and Chassis fan displays on a typicaldesktop computer; the ...FIGURE 18.7 A system with three passwords that can beenabled in BIOS/UEFI s...FIGURE 18.8 An AMD system with TPM 2.0 enabled asreported 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 19FIGURE 19.1 A power supply with a manual voltage switch.

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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 mountingscrews.FIGURE 19.11 AFIGURE 19.12 BFIGURE 19.13 CFIGURE 19.14 DChapter 20FIGURE 20.1 Ethernet (RJ-45) (top) and USB 2.0 (bottom)ports on a typical M...FIGURE 20.2 Wireless configuration dialogs from a typicalSOHO MFD (Epson ET...FIGURE 20.3 Verifying that File And Printer Sharing andNetwork Discovery ar...FIGURE 20.4 Sharing a printer in Windows.FIGURE 20.5 A Microsoft OneNote for Windows 10 printerdialog.FIGURE 20.6 Additional settings (not available on allprinters).FIGURE 20.7 Enabling PrintService➣Operational PrintLogging.

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FIGURE 20.8 A logged print job.Chapter 21FIGURE 21.1 Pickup rollers in a typical laser printer.FIGURE 21.2 Toner cartridge in a typical printer with aseparate 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 inkjetprinter with ink tanks...FIGURE 21.6 A typical duplexing assembly after removal toclear a paper jam.FIGURE 21.7 Preparing to calibrate (align) an inkjet printer.FIGURE 21.8 The parts of a typical impact printer.Chapter 22FIGURE 22.1 Comparing SaaS, PaaS, and IaaS cloud servicecategories.Chapter 23FIGURE 23.1 A nonvirtualized system.FIGURE 23.2 Type 1 and Type 2 virtualization compared.FIGURE 23.3 Oracle VM VirtualBox configuring a VM forWindows 8.1.FIGURE 23.4 Oracle VM VirtualBox creating a VM forrunning macOS.FIGURE 23.5 Intel (top) and AMD (bottom) settings intypical UEFI system fir...FIGURE 23.6 Creating a dynamically allocated virtual diskimage during VM cr...FIGURE 23.7 This computer supports Hyper-V virtualization.

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FIGURE 23.8 Preparing to install Hyper-V features.FIGURE 23.9 Simplified diagram of a typical on-premisesVDI environment.Chapter 24FIGURE 24.1 CompTIA's six-step troubleshootingmethodology.Chapter 25FIGURE 25.1 A typical Windows STOP error (Blue Screen ofDeath).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 desktopcomputer.FIGURE 25.5 An extremely dirty system with virtually noairflow.FIGURE 25.6 HWMonitor displays temperature, voltages,and fan speed for the ...FIGURE 25.7 A typical liquid cooling kit for Intel or AMDprocessors.FIGURE 25.8 A standard DDR4 DIMM (top) compared to ahigh-performance model ...FIGURE 25.9 Leaking, swollen capacitors compared to intactcapacitors.FIGURE 25.10 The Compatibility tab for an app in Windowscan be used to help...FIGURE 25.11 Replace the RTC battery on a desktop orlaptop to solve a probl...Chapter 26FIGURE 26.1 A typical motherboard's drive activity (HDD)LED and power LED c...

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FIGURE 26.2 Correctly installed front-panel LED and othercables.FIGURE 26.3 A data drive reaching 100 percent active timeduring complex fil...FIGURE 26.4 This system drive needs to free up about 75GBmore space.FIGURE 26.5 Windows Boot Manager is the default bootdrive on a Windows syst...FIGURE 26.6 A physical drive is the default boot drive onsystems running Li...FIGURE 26.7 SMART data from a Western Digital SATAdrive indicates no issues...FIGURE 26.8 CrystalDiskMark IOPS test of a 5400rpmSATA drive.FIGURE 26.9 CrystalDiskMark IOPS test of a typical SATASSD drive.FIGURE 26.10 Disk Management shows both partitions andassigned drive letter...Chapter 27FIGURE 27.1 Selecting the correct data source.FIGURE 27.2 This display is set to use the recommendedresolution.FIGURE 27.3 Using JScreenFix to try to repair a stuck ordead pixel.FIGURE 27.4 A PCIe video card being removed from itsexpansion slot. When pr...FIGURE 27.5 Reconnecting the PCIe power cable to a PCIevideo card.FIGURE 27.6 The Cool preset color mode on a Dell display.FIGURE 27.7 Previewing the Warm preset color mode on a

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Dell display; note th...FIGURE 27.8 A three-ring (combined microphone/speakeror headset) jack at le...Chapter 28FIGURE 28.1 Using the battery and device maintenancemenu on a Samsung Andro...FIGURE 28.2 Using the Touchpad menu on Windows 11 toreduce touchpad sensiti...FIGURE 28.3 Preparing to calibrate a touch screen ortouchpad in Windows wit...FIGURE 28.4 Calibrating an Android touch screen with theTouchscreen Calibra...Chapter 30FIGURE 30.1 Examining the current setting for IPv4 LSO.FIGURE 30.2 Selecting QoS settings suitable for VoIP andmedia streaming in ...FIGURE 30.3 Preparing to manually enter preferred DNSservers.

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WILEY BOOKS IN THE CERTMIKE SERIESCompTIA ITF+ CertMike:Prepare. Practice.Pass the Test! Get Certified! Exam FC0-U61by Mike Chapple(ISBN 9781119897811)CompTIA A+ CertMike:Prepare. Practice.Pass the Test! Get Certified! Core 1 Exam 220-1101by Mike Chapple and Mark Soper(ISBN 9781119898092)CompTIA A+ CertMike:Prepare. Practice.Pass the Test! Get Certified! Core 2 Exam 220-1102by Mike Chapple and Mark Soper(ISBN 9781119898122)CompTIA Network+ CertMike:Prepare.

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Practice.Pass the Test! Get Certified! Exam N10-008by Mike Chapple and Craig Zacker(ISBN 9781119898153)

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CompTIA®A+®CertMikePrepare. Practice. Pass the Test! GetCertified!Core 1 Exam 220-1101Mike ChappleMark Soper

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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: 978-1-119-89809-2ISBN: 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 inany form or by any means, electronic, mechanical, photocopying, recording, scanning, orotherwise, except as permitted under Section 107 or 108 of the 1976 United States CopyrightAct, without either the prior written permission of the Publisher, or authorization throughpayment of the appropriate per-copy fee to the Copyright Clearance Center, Inc., 222Rosewood Drive, Danvers, MA 01923, (978) 750-8400, fax (978) 750-4470, or on the web atwww.copyright.com. Requests to the Publisher for permission should be addressed to thePermissions Department, John Wiley & Sons, Inc., 111 River Street, Hoboken, NJ 07030,(201) 748-6011, fax (201) 748-6008, or online atwww.wiley.com/go/permission.Trademarks:WILEY, Wiley logo, and the Sybex logo are trademarks or registeredtrademarks of John Wiley & Sons, Inc. and/or its affiliates, in the United States and othercountries, and may not be used without written permission. CompTIA and A+ are registeredtrademarks 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 usedtheir best efforts in preparing this book, they make no representations or warranties withrespect to the accuracy or completeness of the contents of this book and specifically disclaimany implied warranties of merchantability or fitness for a particular purpose. No warrantymay be created or extended by sales representatives or written sales materials. The advice andstrategies contained herein may not be suitable for your situation. You should consult with aprofessional where appropriate. Further, readers should be aware that websites listed in thiswork may have changed or disappeared between when this work was written and when it isread. Neither the publisher nor authors shall be liable for any loss of profit or any othercommercial damages, including but not limited to special, incidental, consequential, or otherdamages.For general information on our other products and services or for technical support, pleasecontact our Customer Care Department within the United States at (800) 762-2974, outsidethe 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 inprint may not be available in electronic formats. For more information about Wiley products,visit our web site atwww.wiley.com.Library of Congress Control Number:2022941414Cover design: Wiley

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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

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