ANSI/ISA 62443 TEST QUESTIONS WITH
CORRECT ANSWERS 2026
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 use notification
* Access via untrusted networks
FR-2 Use Control (UC) - CORRECT ANSWER -* Authentication enforcement
* Wireless use control
* Use control for portable and mobile devices
* Mobile code (Java, PDF, etc.)
* Session lock
* Remote session termination
* Concurrent session control
* Auditable events
* Audit storage capacity
* Response to audit processing failures
* Timestamps
* Non-repudiation
FR-3 System Integrity (SI) - CORRECT ANSWER -* Communication integrity
* Malicious code protection
* Security functionality verification
* S/W and information integrity
* Input validation
* Deterministic output
* Error handling
* Session integrity
* Protection of audit information
FR-4 Data Confidentiality (DC) - CORRECT ANSWER -* Information confidentiality
* Information persistence (purge shared memory)
* Use of cryptography
CORRECT ANSWERS 2026
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 use notification
* Access via untrusted networks
FR-2 Use Control (UC) - CORRECT ANSWER -* Authentication enforcement
* Wireless use control
* Use control for portable and mobile devices
* Mobile code (Java, PDF, etc.)
* Session lock
* Remote session termination
* Concurrent session control
* Auditable events
* Audit storage capacity
* Response to audit processing failures
* Timestamps
* Non-repudiation
FR-3 System Integrity (SI) - CORRECT ANSWER -* Communication integrity
* Malicious code protection
* Security functionality verification
* S/W and information integrity
* Input validation
* Deterministic output
* Error handling
* Session integrity
* Protection of audit information
FR-4 Data Confidentiality (DC) - CORRECT ANSWER -* Information confidentiality
* Information persistence (purge shared memory)
* Use of cryptography
