ANSI/ISA 62443 TEST QUESTIONS WITH
CORRECT ANSWERS 2025
Boundary Protection Devices - CORRECT ANSWER -Proxies
Gateways
Routers
Firewalls
Data Diodes
Guards
Encrypted Tunnels
External Time Sources - CORRECT ANSWER -GPS
GLONASS - Global Navigation Satellite System
Galileo
FR-7 - Resource Availability includes: - CORRECT ANSWER -DoS Protection
Resource Management (Prevent Resource Exhaustion)
Control System Backup
Control System Recovery & Reconstitution
Emergency Power
Network and Security Config Settings
Least Functionality
Control system component inventory
Types of Security Levels (SLs) - CORRECT ANSWER -* Target SLs (SL-T)
* Achieved SLs (SL-A)
* Capability SLs (SL-C)
* Initial SL
,Foundational Requirements (FR) - CORRECT ANSWER -1) Identification and Authentication Control (IAC)
2) Use Control (UC)
3) System Integrity (SI)
4) Data Confidentiality (DC)
5) Restricted Data Flow (RDF)
6) Timely Response to Events (TRE)
7) Resource Availability (RA)
Security Level Definitions - CORRECT ANSWER -SL-
0: No specific requirements or security protection necessary
SL-1: Protection against casual or coincidental violation
SL-
2: Protection against intentional violation using simple means with low resources, generic skills and lo
w motivation
SL-3: Protection agains intentional violation using sophisticated means with moderate resources, IACS-
specific skills and moderate motivation
SL-4: Protection agains intentional violation using sophisticated means with extended resources, IACS-
specific skills and high motivation
FR-1 Identification and Authentication Control (IAC) - CORRECT ANSWER -
* Human user identification and authentication
* S/W processes and device identification and authentication
* Account management
* Identified management
* Authenticator management
* Wireless access management
* Password strength
* PKI certificates
* Strength of Public Key authentication
* Authenticator feedback
* Unsuccessful login attempts
, * System L use L notification
* Access Lvia L untrusted L networks
FR-2 L Use L Control L (UC) L - LCORRECT L ANSWER L-* L Authentication L enforcement
* Wireless L use L control
* Use L control L for L portable L and L mobile L devices
* Mobile Lcode L(Java, LPDF, Letc.)
* Session L lock
* Remote L session L termination
* Concurrent Lsession L control
* Auditable Levents
* Audit Lstorage Lcapacity
* Response L to L audit L processing L failures
* Timestamps
* Non-repudiation
FR-3 L System L Integrity L (SI) L - LCORRECT L ANSWER L -* LCommunication L integrity
* Malicious L code L protection
* Security L functionality Lverification
* S/W L and Linformation L integrity
* Input L validation
* Deterministic Loutput
* Error L handling
* Session L integrity
* Protection Lof L audit L information
FR-4 L Data L Confidentiality L (DC) L - L CORRECT LANSWER L -* L Information Lconfidentiality
* Information Lpersistence L(purge Lshared Lmemory)
* Use L of L cryptography
CORRECT ANSWERS 2025
Boundary Protection Devices - CORRECT ANSWER -Proxies
Gateways
Routers
Firewalls
Data Diodes
Guards
Encrypted Tunnels
External Time Sources - CORRECT ANSWER -GPS
GLONASS - Global Navigation Satellite System
Galileo
FR-7 - Resource Availability includes: - CORRECT ANSWER -DoS Protection
Resource Management (Prevent Resource Exhaustion)
Control System Backup
Control System Recovery & Reconstitution
Emergency Power
Network and Security Config Settings
Least Functionality
Control system component inventory
Types of Security Levels (SLs) - CORRECT ANSWER -* Target SLs (SL-T)
* Achieved SLs (SL-A)
* Capability SLs (SL-C)
* Initial SL
,Foundational Requirements (FR) - CORRECT ANSWER -1) Identification and Authentication Control (IAC)
2) Use Control (UC)
3) System Integrity (SI)
4) Data Confidentiality (DC)
5) Restricted Data Flow (RDF)
6) Timely Response to Events (TRE)
7) Resource Availability (RA)
Security Level Definitions - CORRECT ANSWER -SL-
0: No specific requirements or security protection necessary
SL-1: Protection against casual or coincidental violation
SL-
2: Protection against intentional violation using simple means with low resources, generic skills and lo
w motivation
SL-3: Protection agains intentional violation using sophisticated means with moderate resources, IACS-
specific skills and moderate motivation
SL-4: Protection agains intentional violation using sophisticated means with extended resources, IACS-
specific skills and high motivation
FR-1 Identification and Authentication Control (IAC) - CORRECT ANSWER -
* Human user identification and authentication
* S/W processes and device identification and authentication
* Account management
* Identified management
* Authenticator management
* Wireless access management
* Password strength
* PKI certificates
* Strength of Public Key authentication
* Authenticator feedback
* Unsuccessful login attempts
, * System L use L notification
* Access Lvia L untrusted L networks
FR-2 L Use L Control L (UC) L - LCORRECT L ANSWER L-* L Authentication L enforcement
* Wireless L use L control
* Use L control L for L portable L and L mobile L devices
* Mobile Lcode L(Java, LPDF, Letc.)
* Session L lock
* Remote L session L termination
* Concurrent Lsession L control
* Auditable Levents
* Audit Lstorage Lcapacity
* Response L to L audit L processing L failures
* Timestamps
* Non-repudiation
FR-3 L System L Integrity L (SI) L - LCORRECT L ANSWER L -* LCommunication L integrity
* Malicious L code L protection
* Security L functionality Lverification
* S/W L and Linformation L integrity
* Input L validation
* Deterministic Loutput
* Error L handling
* Session L integrity
* Protection Lof L audit L information
FR-4 L Data L Confidentiality L (DC) L - L CORRECT LANSWER L -* L Information Lconfidentiality
* Information Lpersistence L(purge Lshared Lmemory)
* Use L of L cryptography
