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DownloadedfromStudyXY.com&+StudyXYnas,as.aTBStudyLAnythingThisContentHasbeenPostedOnStudyXY.comassupplementarylearningmaterial.StudyXYdoesnotendroseanyuniversity,collegeorpublisher.Allmaterialspostedareundertheliabilityofthecontributors.wv6)www.studyxy.com

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CompTIA®A+’CompleteReviewGuideFourthEdition

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CompTIA®A+’CompleteReviewGuideExam220-1001andExam220-1002FourthEditionTroyMcMillan

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SeniorAcquisitionsEditor:KenyonBrownDevelopmentEditor:JimComptonTechnicalEditor:RobinAbernathySeniorProductionEditor:ChristineO’ConnorCopyEditor:KimWimpsettContentEnablementandOperationsManager:PeteGaughanProductionManager:KathleenWisorExecutiveEditor:JimMinatelBookDesigners:JudyFungandBillGibsonProofreader:NancyCarrascoIndexer:TedLauxProjectCoordinator,Cover:BrentSavageCoverDesigner:WileyCoverImage:GettyImagesInc./JeremyWoodhouseCopyright©2019byJohnWiley&Sons,Inc.,Indianapolis,IndianaPublishedsimultaneouslyinCanadaISBN:978-1-119-51695-8ISBN:978-1-119-51686-6(ebk.)ISBN:978-1-119-51696-5(ebk.)ManufacturedintheUnitedStatesofAmericaNopartofthispublicationmaybereproduced,storedinaretrievalsystemortransmittedinanyformorbyanymeans,electronic,mechanical,photocopying,recording,scanningorotherwise,exceptaspermit-tedunderSections107or108ofthe1976UnitedStatesCopyrightAct,withouteitherthepriorwrittenpermissionofthePublisher,orauthorizationthroughpaymentoftheappropriateper-copyfeetotheCopyrightClearanceCenter,222RosewoodDrive,Danvers,MA01923,(978)750-8400,fax(978)646-8600.RequeststothePublisherforpermissionshouldbeaddressedtothePermissionsDepartment,JohnWiley&Sons,Inc.,111RiverStreet,Hoboken,NJ07030,(201)748-6011,fax(201)748-6008,oronlineathttp://waw.wiley.con/go/permissions.LimitofLiability/DisclaimerofWarranty:Thepublisherandtheauthormakenorepresentationsorwar-rantieswithrespecttotheaccuracyorcompletenessofthecontentsofthisworkandspecificallydisclaimallwarranties,includingwithoutlimitationwarrantiesoffitnessforaparticularpurpose.Nowarrantymaybecreatedorextendedbysalesorpromotionalmaterials.Theadviceandstrategiescontainedhereinmaynotbesuitableforeverysituation.Thisworkissoldwiththeunderstandingthatthepublisherisnotengagedinrenderinglegal,accounting,orotherprofessionalservices.Ifprofessionalassistanceisrequired,theservicesofacompetentprofessionalpersonshouldbesought.Neitherthepublishernortheauthorshallbeliablefordamagesarisingherefrom.ThefactthatanorganizationorWebsiteisreferredtointhisworkasacitationand/orapotentialsourceoffurtherinformationdoesnotmeanthattheauthororthepublisherendorsestheinformationtheorganizationorWebsitemayprovideorrecommendationsitmaymake.Further,readersshouldbeawarethatInternetWebsiteslistedinthisworkmayhavechangedordisappearedbetweenwhenthisworkwaswrittenandwhenitisread.Forgeneralinformationonourotherproductsandservicesortoobtaintechnicalsupport,pleasecontactourCustomerCareDepartmentwithintheU.S.at(877)762-2974,outsidetheU.S.at(317)572-3993orfax(317)572-4002.Wileypublishesinavarietyofprintandelectronicformatsandbyprint-on-demand.Somematerialincludedwithstandardprintversionsofthisbookmaynotbeincludedine-booksorinprint-on-demand.IfthisbookreferstomediasuchasaCDorDVDthatisnotincludedintheversionyoupurchased,youmaydownloadthismaterialathttp://booksupport.wiley.com.FormoreinformationaboutWileyprod-ucts,visitwww.wileycon.LibraryofCongressControlNumber:2019936188TRADEMARKS:Wiley,theWileylogo,andtheSybexlogoaretrademarksorregisteredtrademarksofJohnWiley&Sons,Inc.and/oritsaffiliates,intheUnitedStatesandothercountries,andmaynotbeusedwithoutwrittenpermission.CompTIAandA+areregisteredtrademarksofCompTIA,Inc.Allothertrademarksarethepropertyoftheirrespectiveowners.JohnWiley&Sons,Inc.isnotassociatedwithanyproductorvendormentionedinthisbook.10987654321Study!

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Thisbookisdedicatedtomysweetwife,Heike,whoshepherdedourfamilythroughthehorrorsofHurricaneIrma.Study

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AcknowledgmentsIwouldliketothankJimComptonforhelpingtokeepmeontrack,KenBrownforcontinuingtopublishmywork,andRobinAbernathyforherworkinmakingsureI'mtechnicallycorrect.Study

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AbouttheAuthorTroyMcMillanwritespracticetests,studyguides,andonlinecoursematerialsforKaplanITCertPrep,whilealsorunninghisownconsultingandtrainingbusiness.Heholdsmorethan30industrycertificationsandalsoappearsintrainingvideosforOncourseLearningandPearsonPress.Troycanbereachedatmcmi1lantroy@hotmail.com.Study

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ContentsataGlanceIntroductionxxxiPart1CompTIAA+Core1Exam220-10011Chapter1MobileDevices3Chapter2Networking57Chapter3Hardware1mChapter4VirtualizationandCloudComputing235Chapter5HardwareandNetworkTroubleshooting249PartIlCompTIAA+Core2Exam220-1002309Chapter6OperatingSystems31Chapter7Security463Chapter8SoftwareTroubleshooting541Chapter9OperationalProcedures577AppendixAnswerstoReviewQuestions631Index651Study

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ContentsIntroductionxxxiPart1CompTIAA+Core1Exam220-10011Chapter1MobileDevices31.1Givenascenario,installandconfigurelaptophardwareandcomponents.8Hardware/devicereplacement8Examessential151.2Givenascenario,installcomponentswithinthedisplayofalaptop.15Types16‘WiFiantennaconnector/placement17‘Webcam18Microphone18Inverter18Digitizer/touchscreen18Examessentials191.3Givenascenario,useappropriatelaptopfeatures.19Specialfunctionkeys19Dockingstation24Portreplicator25Physicallaptoplockandcablelock25Rotating/removablescreens26Examessentials261.4Compareandcontrastcharacteristicsofvarioustypesofothermobiledevices.26Tablets27Smartphones27‘Wearabletechnologydevices27E-readers30GPS31Examessentials311.5Givenascenario,connect,andconfigureaccessoriesandportsofothermobiledevices.31Connectiontypes31Accessories36Examessentials391.6Givenascenario,configurebasicmobiledevicenetworkconnectivityandapplicationsupport.39Wireless/cellulardatanetwork(enable/disable)39Bluetooth40

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xviContentsCorporateandISPemailconfiguration42Integratedcommercialprovideremailconfiguration45PRIupdates/PRLupdates/basebandupdates47Radiofirmware48IMEIvs.IMSI49VPN49Examessentials491.7Givenascenario,usemethodstoperformmobiledevicesynchronization.50Synchronizationmethods50Typesofdatatosynchronize51Mutualauthenticationformultipleservices(SSO)53SoftwarerequirementstoinstalltheapplicationonthePC53Connectiontypestoenablesynchronization53Examessentials53ReviewQuestions54Chapter2Networking572.1CompareandcontrastTCPandUDPports,protocols,andtheirpurposes.62Portsandprotocols62TCPvs.UDP65Examessentials652.2Compareandcontrastcommonnetworkinghardwaredevices.65Routers66Switches66Accesspoints67Cloud-basednetworkcontroller67Firewall67Networkinterfacecard67Repeater68Hub68Cable/DSLmodem68Bridge69Patchpanel69PoweroverEthernet(PoE)70EthernetoverPower70Examessentials712.3Givenascenario,installandconfigureabasicwired/wirelessSOHOnetwork.71Router/switchfunctionality72Accesspointsettings72IPaddressing73

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ContentsxviiNICconfiguration73End-userdeviceconfiguration74ToTdeviceconfiguration75Cable/DSLmodemconfiguration76Firewallsettings77QoS79Wirelesssettings80Examessentials812.4Compareandcontrastwirelessnetworkingprotocols.82802.11a82802.11b83802.11g83802.11n83802.11ac83Frequencies:2.4,5.084Channels(1-11)$4Bluetooth84NFC84RFID84Zigbee85Z-Wave853G854G85LTE855G86Examessentials862.5Summarizethepropertiesandpurposesofservicesprovidedbynetworkedhosts.86Serverroles86Internetappliances88Legacy/embeddedsystems90Examessentials902.6Explaincommonnetworkconfigurationconcepts.90IPaddressing90DNS93DHCP93IPv4vs.IPv694Subnetmask95Gateway9%VPN96VLAN97NAT97Examessentials98

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xviiiContents2.7CompareandcontrastInternetconnectiontypes,networktypes,andtheirfeatures.99Internetconnectiontypes99Networktypes101Examessentials1022.8Givenascenario,useappropriatenetworkingtools.102Crimper103Cablestripper103Multimeter103Tonegeneratorandprobe103Cabletester104Loopbackplug104Punchdowntool104WiFianalyzer104Examessentials105ReviewQuestions106Chapter3Hardware1113.1Explainbasiccabletypes,features,andtheirpurposes.120Networkcables120Videocables124Multipurposecables127Peripheralcables130Harddrivecables131Adapters134Examessentials1363.2Identifycommonconnectortypes.136RJ-11137RJ-45137RS-232138BNC138RG-59139RG-6139USB139Micro-USB/Mini-USB139USB-C139DB-9139Lightning139SCSI140eSATA140Molex140Examessentials1413.3Givenascenario,installRAMtypes.141RAMtypes142Singlechannel/dualchannel/triplechannel144

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ContentsxixErrorcorrecting145Installation/RAMslots145Examessentials1473.4Givenascenario,select,install,andconfigurestoragedevices.147Opticaldrives147Solid-statedrives149Magneticharddrives149Hybriddrives151Flash152Configurations155Examessentials1593.5Givenascenario,installandconfiguremotherboards,CPUs,andadd-oncards.159Motherboardformfactor160Motherboardconnectorstypes162BIOS/UEFIsettings167CMOSbattery171CPUfeatures172Compatibility174Coolingmechanism178Expansioncards179Examessentials1823.6Explainthepurposesandusesofvariousperipheraltypes.183Printer184ADF/flatbedscanner184Barcodescanner/QRscanner184Monitors184VRheadset184Optical185DVDdrive185Mouse185Keyboard185Touchpad185Signaturepad186Gamecontrollers186Camera/webcam187Microphone187Speakers187Headset187Projector187Externalstoragedrives188KVM188Magneticreader/chipreader188NFC/tappaydevice188

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xxContentsSmartcardreader188Examessentials1893.7Summarizepowersupplytypesandfeatures.189Input115Vvs.220V189Output5.5Vvs.12V19024-pinmotherboardadapter190Wattagerating191Numberofdevices/typesofdevicestobepowered191Examessentials1943.8Givenascenario,selectandconfigureappropriatecomponentsforacustomPCconfigurationtomeetcustomerspecificationsorneeds.194Graphic/CAD/CAMdesignworkstation194Audio/videoeditingworkstation195Virtualizationworkstation196GamingPC196Standardthickclient198Thinclient198Network-attachedstoragedevice199Examessentials2003.9Givenascenario,installandconfigurecommondevices.200Desktop200Laptop/commonmobiledevices201Examessentials2023.10Givenascenario,configureSOHOmultifunctiondevices/printersandsettings.202Useappropriatedriversforagivenoperatingsystem.202Devicesharing203Public/shareddevices205Examessentials2083.11Givenascenario,installandmaintainvariousprinttechnologies.208Laser210Inkjet220Thermal223Impact224Virtual2263Dprinters227Examessentials227ReviewQuestions228Chapter4VirtualizationandCloudComputing2354.1Compareandcontrastcloudcomputingconcepts.237Commoncloudmodels237Sharedresources238

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ContentsxxiRapidelasticity239On-demand239Resourcepooling239Measuredservice239Metered240Off-siteemailapplications240Cloudfilestorageservices240Virtualapplicationstreaming/cloud-basedapplications240Virtualdesktop241Examessentials2424.2Givenascenario,setupandconfigureclient-sidevirtualization.242Purposeofvirtualmachines242Resourcerequirements243Emulatorrequirements243Securityrequirements243Networkrequirements244Hypervisor244Examessentials245ReviewQuestions246Chapter5HardwareandNetworkTroubleshooting2495.1Givenascenario,usethebestpracticemethodologytoresolveproblems.254Alwaysconsidercorporatepolicies,procedures,andimpactsbeforeimplementingchanges2541.Identifytheproblem.2552.Establishatheoryofprobablecause(questiontheobvious).2563.Testthetheorytodeterminecause.2564.Establishaplanofactiontoresolvetheproblemandimplementthesolution.2575.Verifyfullsystemfunctionalityand,ifapplicable,implementpreventivemeasures.2576.Documentfindings,actions,andoutcomes.257ExamEssentials2575.2Givenascenario,troubleshootproblemsrelatedtomotherboards,RAM,CPUs,andpower.258Commonsymptoms258ExamEssentials2685.3Givenascenario,troubleshootharddrivesandRAIDarrays.268Commonsymptoms269ExamEssentials272

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xxiiContents5.4Givenascenario,troubleshootvideo,projector,anddisplayissues.272Commonsymptoms273Examessentials2785.5Givenascenario,troubleshootcommonmobiledeviceissueswhileadheringtotheappropriateprocedures.278Commonsymptoms279Disassemblingprocessesforproperreassembly288Examessentials2895.6Givenascenario,troubleshootprinters.289Commonsymptoms290ExamEssentials2965.7Givenascenario,troubleshootcommonwiredandwirelessnetworkproblems.297Commonsymptoms297Examessentials304ReviewQuestions305Part11CompTIAA+Core2Exam220-1002309Chapter6OperatingSystems311.1Compareandcontrastcommonoperatingsystemtypesandtheirpurposes.32132-bitvs.64-bit321Workstationoperatingsystems322Cellphone/tabletoperatingsystems323Vendor-specificlimitations323Compatibilityconcernsbetweenoperatingsystems324Examessentials3241.2CompareandcontrastfeaturesofMicrosoftWindowsversions.324Windows7325Windows8325Windows8.1326Windows10326Corporatevs.personalneeds327Desktopstyles/userinterface328Examessentials3321.3SummarizegeneralOSinstallationconsiderationsandupgrademethods.332Upgradepaths332Bootmethods339Typesofinstallations340Partitioning344Filesystemtypes/formatting346

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ContentsxxiiiLoadalternatethird-partydriverswhennecessary348Workgroupvs.domainsetup349Time/date/region/languagesettings349Driverinstallation,software,andWindowsupdates349Factoryrecoverypartition350Properlyformattedbootdrivewiththecorrectpartitions/format350Prerequisites/hardwarecompatibility350Applicationcompatibility350OScompatibility/upgradepath350Examessentials3501.4Givenascenario,useappropriateMicrosoftcommand-linetools.351Navigation352ipconfig354ping355tracert356netstat358nslookup359shutdown361dism361sfc361chkdsk362diskpart363taskkill363gpupdate364gpresult364format365copy366xcopy367robocopy368netuse369netuser370[commandname]/?371Commandsavailablewithstandardprivilegesvs.administrativeprivileges371Examessentials3721.5Givenascenario,useMicrosoftoperatingsystemfeaturesandtools.372Administrative373MSConfig378TaskManager382DiskManagement390Systemutilities398Examessentials400

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xxivContents1.6Givenascenario,useMicrosoftWindowsControlPanelutilities.400InternetOptions400Display/DisplaySettings406UserAccounts408FolderOptions408System411WindowsFirewall414PowerOptions415CredentialManager416Programsandfeatures417HomeGroup418DevicesandPrinters418Sound419Troubleshooting420NetworkandSharingCenter421DeviceManager422Bitlocker423SyncCenter424Examessentials4241.7Summarizeapplicationinstallationandconfigurationconcepts.424Systemrequirements425OSrequirements425Methodsofinstallationanddeployment425Localuserpermissions425Securityconsiderations426Examessentials4261.8Givenascenario,configureMicrosoftWindowsnetworkingonaclient/desktop.426HomeGroupvs.Workgroup427Domainsetup427Networkshares/administrativeshares/mappingdrives429Printersharingvs.networkprintermapping429Establishnetworkingconnections431Proxysettings432RemoteDesktopConnection433RemoteAssistance434Homevs.Workvs.Publicnetworksettings435Firewallsettings436ConfiguringanalternativeIPaddressinWindows437Networkcardproperties439Examessentials440

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Contentsxxv1.9Givenascenario,usefeaturesandtoolsoftheMacOSandLinuxclient/desktopoperatingsystems.440Bestpractices441Tools445Features450BasicLinuxcommands454Examessentials459ReviewQuestions460Chapter7Security4632.1Summarizetheimportanceofphysicalsecuritymeasures.~~470Mantrap470Badgereader471Smartcard471Securityguard472Doorlock472Biometriclocks472Hardwaretokens473Cablelocks473Serverlocks473USBlocks473Privacyscreen474Keyfobs474Entrycontrolroster474Examessentials4742.2Explainlogicalsecurityconcepts.474ActiveDirectory475Softwaretokens476MDMpolicies476Portsecurity476MACaddressfiltering477Certificates477Antivirus/Anti-malware478Firewalls478Userauthentication/strongpasswords481Multifactorauthentication482Directorypermissions482VPN484DLP484Accesscontrollists484Smartcard484Emailfiltering484Trusted/untrustedsoftwaresources485Principleofleastprivilege485Examessentials485

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xxviContents2.3Compareandcontrastwirelesssecurityprotocolsandauthenticationmethods.486Protocolsandencryption486Authentication487Examessentials4892.4Givenascenario,detect,remove,andpreventmalwareusingappropriatetoolsandmethods.489Malware489Toolsandmethods496Examessentials4992.5Compareandcontrastsocialengineering,threats,andvulnerabilities.500Socialengineering500DDoS502DoS503Zero-day503Man-in-the-middle503Bruteforce503Dictionary503Rainbowtable504Spoofing504Non-compliantsystems504Zombie/botnet504Examessentials5042.6CompareandcontrastthedifferencesofbasicMicrosoftWindowsOSsecuritysettings.505Userandgroups505NTESvs.sharepermissions506Sharedfilesandfolders510Systemfilesandfolders512Userauthentication512Runasadministratorvs.standarduser512BitLocker/BitLockerToGo513EFS513Examessentials5142.7Givenascenario,implementsecuritybestpracticestosecureaworkstation.514Passwordbestpractices514Accountmanagement516Disableautorun519Dataencryption519Patch/updatemanagement520Examessentials520

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Contentsxxvii2.8Givenascenario,implementmethodsforsecuringmobiledevices.520Screenlocks521Remotewipes522Locatorapplications522Remotebackupapplications522Failedloginattemptsrestrictions523Antivirus/Anti-malware523Patching/OSupdates523Biometricauthentication523Fulldeviceencryption524Multifactorauthentication524Authenticatorapplications524Trustedsourcesvs.untrustedsources524Firewalls525Policiesandprocedures526Examessentials5262.9Givenascenario,implementappropriatedatadestructionanddisposalmethods.527Physicaldestruction527Recyclingorrepurposingbestpractices529Examessentials5302.10Givenascenario,configuresecurityonSOHOwirelessandwirednetworks.530Wirelessspecific531Changedefaultusernamesandpasswords532EnableMACfiltering533AssignstaticIPaddresses533Firewallsettings533Portforwarding/mapping534Disablingports534Contentfiltering/parentalcontrols534UpdateFirmware534Physicalsecurity535Examessentials535ReviewQuestions536Chapter8SoftwareTroubleshooting5413.1Givenascenario,troubleshootMicrosoftWindowsOSproblems.545Commonsymptoms546Commonsolutions551Examessentials557

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xxviiiContents3.2Givenascenario,troubleshootandresolvePCsecurityissues.557Commonsymptoms558Examessentials5613.3Givenascenario,usebestpracticeproceduresformalwareremoval.5621.Identifyandresearchmalwaresymptoms.5622.Quarantinetheinfectedsystems.5623.DisableSystemRestore(inWindows).5624.Remediatetheinfectedsystems.5625.Schedulescansandrunupdates.5636.EnableSystemRestoreandcreatearestorepoint(inWindows).5637.Educatetheenduser.563Examessentials5633.4Givenascenario,troubleshootmobileOSandapplicationissues.564Commonsymptoms564Examessentials5703.5Givenascenario,troubleshootmobileOSandapplicationsecurityissues.571Commonsymptoms571Examessentials573ReviewQuestions574Chapter9OperationalProcedures5774.1Compareandcontrastbestpracticesassociatedwithtypesofdocumentation.582Networktopologydiagrams582Knowledgebase/articles583Incidentdocumentation583Regulatoryandcompliancepolicy584Acceptableusepolicy584Passwordpolicy585Inventorymanagement586Examessentials5874.2Givenascenario,implementbasicchangemanagementbestpractices.587Documentedbusinessprocesses588Purposeofthechange588Scopethechange588Riskanalysis589Planforchange589End-useracceptance589

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ContentsxxixChangeboard589Backoutplan589Documentchanges589Examessentials5904.3Givenascenario,implementbasicdisasterpreventionandrecoverymethods.590Backupandrecovery590Backuptesting593urs593Surgeprotector594Cloudstoragevs.localstoragebackups595Accountrecoveryoptions595Examessentials5964.4Explaincommonsafetyprocedures.596Equipmentgrounding596Propercomponenthandlingandstorage597Toxicwastehandling599Personalsafety601Compliancewithgovernmentregulations603Examessentials6034.5Explainenvironmentalimpactsandappropriatecontrols.~~603MSDSdocumentationforhandlinganddisposal604Temperature,humiditylevelawareness,andproperventilation604Powersurges,brownouts,andblackouts605Protectionfromairborneparticles605Dustanddebris606Compliancetogovernmentregulations607Examessentials6084.6Explaintheprocessesforaddressingprohibitedcontent/activity,andprivacy,licensing,andpolicyconcepts.608Incidentresponse608Licensing/DRM/EULA610Regulateddata611Followallpoliciesandsecuritybestpractices612Examessentials6124.7Givenascenario,usepropercommunicationtechniquesandprofessionalism.613Useproperlanguageandavoidjargon,acronyms,andslang,whenapplicable613Maintainapositiveattitude/projectconfidence614Activelylisten(takingnotes)andavoidinterruptingthecustomer614Beculturallysensitive614

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XXXContentsBeontime(iflate,contactthecustomer)615Avoiddistractions615Setandmeetexpectations/timelineandcommunicatestatuswiththecustomer617Dealappropriatelywithcustomers’confidentialandprivatematerials618Examessentials6194.8Identifythebasicsofscripting.619Scriptfiletypes619Environmentvariables620Commentsyntax620Basicscriptconstructs620Basicdatatypes621Examessentials6214.9Givenascenario,useremoteaccesstechnologies.622RDP622Telnet623SSH625Third-partytools625Securityconsiderationsofeachaccessmethod626Examessentials626ReviewQuestions627AppendixAnswerstoReviewQuestions631Chapter1:MobileDevices632Chapter2:Networking634Chapter3:Hardware636Chapter4:VirtualizationandCloudComputing640Chapter5:HardwareandNetworkTroubleshooting641Chapter6:OperatingSystems642Chapter7:Security645Chapter8:SoftwareTroubleshooting648Chapter9:OperationalProcedures649Index651

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