YouaretheadministratorofCompany’snetwork.Youinstall50newWindows2000Professionalcomputersinthemarketingdepartment.Twoweekslater,usersreportthatfiveofthecomputershavestoppedresponding.Youtroubleshootthefivecomputers.YoufindthatsomeusershaveinstalledunsigneddevicedriversthatarenotsupportedbyWindows2000Professional.Youwanttodeterminewhichdriverswereinstalledbyusers.Whatshouldyoudo?（）
A.Runthechkdsk\/fcommandonalldrivesonthecomputers.
B.ConfigureWindows2000Professionaltoenabledriversigningverification.
C.RuntheFileSignatureVerificationtoolonthecomputers.
D.RuntheSystemFileCheckerutilityonthecomputers.
参考答案：C
WheninstallingnewsoftwareonyourcomputersystemfilesanddevicedriverfilesaresometimesoverwrittenbyunsignedorincompatibleversionscausingsysteminstabilityThesystemfilesanddevicedriverfilesprovidedwithWindows2000haveaMicrosoftdigitalsignaturewhichindicatesthatthefilesareoriginalunalteredsystemfilesorthattheyhavebeenapprovedbyMicrosoftforusewithWindows
UsingFileSignatureVerificationyoucanidentifyunsignedfilesonyourcomputerTocheckthedigitalsignaturesforsystemornon-systemfilesOpenFileSignatureVerificationClickAdvanced
OntheSearchtabclickoneofthefollowing：Notifymeifanysystemfilesarenotsigned
ChecksonlytheWindowssystemfilesandalldevicedriverfilestoseeiftheyhaveadigitalsignature
Lookforotherfilesthatarenotdigitallysigned
Enablesyoutospecifythefiletypeandlocationofnon-systemfilestocheckforadigitalsignature
ClickOKandthenclickStart
