ISA 62443 IC33 ACTUAL EXAM PAPER 2026
QUESTIONS WITH ANSWERS GRADED A+
⩥ What happens during the Develop & Implement phase of ICS security
implementation? Answer: Countermeasures are implemented to meet the
Target Security Level (SL-T).
⩥ What is the primary goal of the Maintain phase in ICS security
implementation? Answer: To ensure the Achieved Security Level (SL-A)
is equal to or better than the Target Security Level (SL-T).*
⩥ What is phase 1 of the IACS Cybersecurity Life Cycle? Answer:
Assess
⩥ What is phase 2 of the IACS Cybersecurity Life Cycle? Answer:
Develop & Implement
⩥ What is phase 3 of the IACS Cybersecurity Life Cycle? Answer:
Maintain phase
⩥ What is step 1 of the IACS Cybersecurity Life Cycle (Assess Phase)?
Answer: High-Level Cyber Risk Assessment
,⩥ What is step 2 of the IACS Cybersecurity Life Cycle (Assess Phase)?
Answer: Allocation of IACS Assets to Security Zones or Conduits
⩥ What is step 3 of the IACS Cybersecurity Life Cycle (Assess Phase)?
Answer: Detail Cyber Risk Assessment
⩥ What is step 4 of the IACS Cybersecurity Life Cycle (Develop &
Implement Phase)? Answer: Cybersecurity Requirements Specification
⩥ What is step 5 of the IACS Cybersecurity Life Cycle (Develop &
Implement Phase)? Answer: Design and engineering of Cybersecurity
countermeasures
⩥ What is step 6 of the IACS Cybersecurity Life Cycle (Develop &
Implement Phase)? Answer: Installation, commissioning and validation
of Cybersecurity countermeasures
⩥ What is step 7 of the IACS Cybersecurity Life Cycle (Maintain)?
Answer: Cybersecurity Maintenance, Monitoring and Management of
Change
⩥ What is step 8 of the IACS Cybersecurity Life Cycle (Maintain)?
Answer: Cyber Incident Response & Recovery
,⩥ What are the continuous processes activities of the IACS
Cybersecurity Life Cycle? Answer: Cybersecurity Management System:
Policies, Procedures, Training & Awareness, Periodic Cybersecurity
Audits
⩥ What must be done before an assessment can be started? Answer:
Create a Project Plan
ID Steps of the Project to perform the assessment
ID the System Under Assessment
⩥ System Under Consideration (SUC) Answer: The system or systems
within an Industrial Automation and Control System environment that
are being evaluated or designed for security enhancements.
⩥ System Under Assessment (SUA) Answer: The system that is being
evaluated for compliance with standards.
⩥ What are some required information gathering items before the
assessment can begin? Answer: Goals of the Assessment
IACS asset inventory
Understanding of the IACS
Regulations, requirements, and governance of relevance (Government,
Industry, Company)
Architecture diagrams
, Configuration Files
Known vulnerabilities
Define roles and responsibilities
Establish training requirements
⩥ System Architecture Diagrams Answer: Depiction of system
components, their connectivity, and physical locations.
⩥ Physical System Architecture Diagram Answer: A diagram that
provides a visual representation of the physical components within a
system and their interconnections. It focuses on hardware elements such
as servers, network devices, control systems, and terminals, showing
how these components are arranged and connected.
⩥ Functional System Architecture Diagram Answer: A diagram that
describes the functions of a system and their relationships without
focusing on physical details. It presents a logical view of the system,
emphasizing software elements, data flows, and interactions between
different functions or modules within the system.
⩥ (True/False) IACS functionality should be graphically represented on
at least one IACS Architecture drawing Answer: True
QUESTIONS WITH ANSWERS GRADED A+
⩥ What happens during the Develop & Implement phase of ICS security
implementation? Answer: Countermeasures are implemented to meet the
Target Security Level (SL-T).
⩥ What is the primary goal of the Maintain phase in ICS security
implementation? Answer: To ensure the Achieved Security Level (SL-A)
is equal to or better than the Target Security Level (SL-T).*
⩥ What is phase 1 of the IACS Cybersecurity Life Cycle? Answer:
Assess
⩥ What is phase 2 of the IACS Cybersecurity Life Cycle? Answer:
Develop & Implement
⩥ What is phase 3 of the IACS Cybersecurity Life Cycle? Answer:
Maintain phase
⩥ What is step 1 of the IACS Cybersecurity Life Cycle (Assess Phase)?
Answer: High-Level Cyber Risk Assessment
,⩥ What is step 2 of the IACS Cybersecurity Life Cycle (Assess Phase)?
Answer: Allocation of IACS Assets to Security Zones or Conduits
⩥ What is step 3 of the IACS Cybersecurity Life Cycle (Assess Phase)?
Answer: Detail Cyber Risk Assessment
⩥ What is step 4 of the IACS Cybersecurity Life Cycle (Develop &
Implement Phase)? Answer: Cybersecurity Requirements Specification
⩥ What is step 5 of the IACS Cybersecurity Life Cycle (Develop &
Implement Phase)? Answer: Design and engineering of Cybersecurity
countermeasures
⩥ What is step 6 of the IACS Cybersecurity Life Cycle (Develop &
Implement Phase)? Answer: Installation, commissioning and validation
of Cybersecurity countermeasures
⩥ What is step 7 of the IACS Cybersecurity Life Cycle (Maintain)?
Answer: Cybersecurity Maintenance, Monitoring and Management of
Change
⩥ What is step 8 of the IACS Cybersecurity Life Cycle (Maintain)?
Answer: Cyber Incident Response & Recovery
,⩥ What are the continuous processes activities of the IACS
Cybersecurity Life Cycle? Answer: Cybersecurity Management System:
Policies, Procedures, Training & Awareness, Periodic Cybersecurity
Audits
⩥ What must be done before an assessment can be started? Answer:
Create a Project Plan
ID Steps of the Project to perform the assessment
ID the System Under Assessment
⩥ System Under Consideration (SUC) Answer: The system or systems
within an Industrial Automation and Control System environment that
are being evaluated or designed for security enhancements.
⩥ System Under Assessment (SUA) Answer: The system that is being
evaluated for compliance with standards.
⩥ What are some required information gathering items before the
assessment can begin? Answer: Goals of the Assessment
IACS asset inventory
Understanding of the IACS
Regulations, requirements, and governance of relevance (Government,
Industry, Company)
Architecture diagrams
, Configuration Files
Known vulnerabilities
Define roles and responsibilities
Establish training requirements
⩥ System Architecture Diagrams Answer: Depiction of system
components, their connectivity, and physical locations.
⩥ Physical System Architecture Diagram Answer: A diagram that
provides a visual representation of the physical components within a
system and their interconnections. It focuses on hardware elements such
as servers, network devices, control systems, and terminals, showing
how these components are arranged and connected.
⩥ Functional System Architecture Diagram Answer: A diagram that
describes the functions of a system and their relationships without
focusing on physical details. It presents a logical view of the system,
emphasizing software elements, data flows, and interactions between
different functions or modules within the system.
⩥ (True/False) IACS functionality should be graphically represented on
at least one IACS Architecture drawing Answer: True
