ANSI/ISA 62443 TEST QUESTIONS WITH
CORRECT ANSWERS 2025
BoundaryUProtectionUDevicesU-UCORRECTUANSWERU-Proxies
Gateways
Routers
Firewalls
DataUDiodes
Guards
EncryptedUTunnels
ExternalUTimeUSourcesU-UCORRECTUANSWERU-GPS
GLONASSU-UGlobalUNavigationUSatelliteUSystem
Galileo
FR-7U-UResourceUAvailabilityUincludes:U-UCORRECTUANSWERU-DoSUProtection
ResourceUManagementU(PreventUResourceUExhaustion)
ControlUSystemUBackup
ControlUSystemURecoveryU&UReconstitution
EmergencyUPower
NetworkUandUSecurityUConfigUSettings
LeastUFunctionality
ControlUsystemUcomponentUinventory
TypesUofUSecurityULevelsU(SLs)U-UCORRECTUANSWERU-*UTargetUSLsU(SL-T)
*UAchievedUSLsU(SL-A)
*UCapabilityUSLsU(SL-C)
*UInitialUSL
,FoundationalURequirementsU(FR)U-UCORRECTUANSWERU-1)UIdentificationUandUAuthenticationUControlU(IAC)
2)UUseUControlU(UC)
3)USystemUIntegrityU(SI)
4)UDataUConfidentialityU(DC)
5)URestrictedUDataUFlowU(RDF)
6)UTimelyUResponseUtoUEventsU(TRE)
7)UResourceUAvailabilityU(RA)
SecurityULevelUDefinitionsU-UCORRECTUANSWERU-SL-
0:UNoUspecificUrequirementsUorUsecurityUprotectionUnecessary
SL-1:UProtectionUagainstUcasualUorUcoincidentalUviolation
SL-
2:UProtectionUagainstUintentionalUviolationUusingUsimpleUmeansUwithUlowUresources,UgenericUskillsUandUlo
wUmotivation
SL-3:UProtectionUagainsUintentionalUviolationUusingUsophisticatedUmeansUwithUmoderateUresources,UIACS-
specificUskillsUandUmoderateUmotivation
SL-4:UProtectionUagainsUintentionalUviolationUusingUsophisticatedUmeansUwithUextendedUresources,UIACS-
specificUskillsUandUhighUmotivation
FR-1UIdentificationUandUAuthenticationUControlU(IAC)U-UCORRECTUANSWERU-
*UHumanUuserUidentificationUandUauthentication
*US/WUprocessesUandUdeviceUidentificationUandUauthentication
*UAccountUmanagement
*UIdentifiedUmanagement
*UAuthenticatorUmanagement
*UWirelessUaccessUmanagement
*UPasswordUstrength
*UPKIUcertificates
*UStrengthUofUPublicUKeyUauthentication
*UAuthenticatorUfeedback
*UUnsuccessfulUloginUattempts
, *USystemUuseUnotification
*UAccessUviaUuntrustedUnetworks
FR-2UUseUControlU(UC)U-UCORRECTUANSWERU-*UAuthenticationUenforcement
*UWirelessUuseUcontrol
*UUseUcontrolUforUportableUandUmobileUdevices
*UMobileUcodeU(Java,UPDF,Uetc.)
*USessionUlock
*URemoteUsessionUtermination
*UConcurrentUsessionUcontrol
*UAuditableUevents
*UAuditUstorageUcapacity
*UResponseUtoUauditUprocessingUfailures
*UTimestamps
*UNon-repudiation
FR-3USystemUIntegrityU(SI)U-UCORRECTUANSWERU-*UCommunicationUintegrity
*UMaliciousUcodeUprotection
*USecurityUfunctionalityUverification
*US/WUandUinformationUintegrity
*UInputUvalidation
*UDeterministicUoutput
*UErrorUhandling
*USessionUintegrity
*UProtectionUofUauditUinformation
FR-4UDataUConfidentialityU(DC)U-UCORRECTUANSWERU-*UInformationUconfidentiality
*UInformationUpersistenceU(purgeUsharedUmemory)
*UUseUofUcryptography
CORRECT ANSWERS 2025
BoundaryUProtectionUDevicesU-UCORRECTUANSWERU-Proxies
Gateways
Routers
Firewalls
DataUDiodes
Guards
EncryptedUTunnels
ExternalUTimeUSourcesU-UCORRECTUANSWERU-GPS
GLONASSU-UGlobalUNavigationUSatelliteUSystem
Galileo
FR-7U-UResourceUAvailabilityUincludes:U-UCORRECTUANSWERU-DoSUProtection
ResourceUManagementU(PreventUResourceUExhaustion)
ControlUSystemUBackup
ControlUSystemURecoveryU&UReconstitution
EmergencyUPower
NetworkUandUSecurityUConfigUSettings
LeastUFunctionality
ControlUsystemUcomponentUinventory
TypesUofUSecurityULevelsU(SLs)U-UCORRECTUANSWERU-*UTargetUSLsU(SL-T)
*UAchievedUSLsU(SL-A)
*UCapabilityUSLsU(SL-C)
*UInitialUSL
,FoundationalURequirementsU(FR)U-UCORRECTUANSWERU-1)UIdentificationUandUAuthenticationUControlU(IAC)
2)UUseUControlU(UC)
3)USystemUIntegrityU(SI)
4)UDataUConfidentialityU(DC)
5)URestrictedUDataUFlowU(RDF)
6)UTimelyUResponseUtoUEventsU(TRE)
7)UResourceUAvailabilityU(RA)
SecurityULevelUDefinitionsU-UCORRECTUANSWERU-SL-
0:UNoUspecificUrequirementsUorUsecurityUprotectionUnecessary
SL-1:UProtectionUagainstUcasualUorUcoincidentalUviolation
SL-
2:UProtectionUagainstUintentionalUviolationUusingUsimpleUmeansUwithUlowUresources,UgenericUskillsUandUlo
wUmotivation
SL-3:UProtectionUagainsUintentionalUviolationUusingUsophisticatedUmeansUwithUmoderateUresources,UIACS-
specificUskillsUandUmoderateUmotivation
SL-4:UProtectionUagainsUintentionalUviolationUusingUsophisticatedUmeansUwithUextendedUresources,UIACS-
specificUskillsUandUhighUmotivation
FR-1UIdentificationUandUAuthenticationUControlU(IAC)U-UCORRECTUANSWERU-
*UHumanUuserUidentificationUandUauthentication
*US/WUprocessesUandUdeviceUidentificationUandUauthentication
*UAccountUmanagement
*UIdentifiedUmanagement
*UAuthenticatorUmanagement
*UWirelessUaccessUmanagement
*UPasswordUstrength
*UPKIUcertificates
*UStrengthUofUPublicUKeyUauthentication
*UAuthenticatorUfeedback
*UUnsuccessfulUloginUattempts
, *USystemUuseUnotification
*UAccessUviaUuntrustedUnetworks
FR-2UUseUControlU(UC)U-UCORRECTUANSWERU-*UAuthenticationUenforcement
*UWirelessUuseUcontrol
*UUseUcontrolUforUportableUandUmobileUdevices
*UMobileUcodeU(Java,UPDF,Uetc.)
*USessionUlock
*URemoteUsessionUtermination
*UConcurrentUsessionUcontrol
*UAuditableUevents
*UAuditUstorageUcapacity
*UResponseUtoUauditUprocessingUfailures
*UTimestamps
*UNon-repudiation
FR-3USystemUIntegrityU(SI)U-UCORRECTUANSWERU-*UCommunicationUintegrity
*UMaliciousUcodeUprotection
*USecurityUfunctionalityUverification
*US/WUandUinformationUintegrity
*UInputUvalidation
*UDeterministicUoutput
*UErrorUhandling
*USessionUintegrity
*UProtectionUofUauditUinformation
FR-4UDataUConfidentialityU(DC)U-UCORRECTUANSWERU-*UInformationUconfidentiality
*UInformationUpersistenceU(purgeUsharedUmemory)
*UUseUofUcryptography