ISA 62443 IC33 Exam Questions
100% Solved Correct A+ Solution
Guide New Update
What is the purpose of assigning a Target Security Level (SL-T) during the Assess
phase of ICS security implementation? - ANSWER✔✔-To determine the existing
vulnerabilities of the system.
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
ISA-95 Functional Layer Level 0 - ANSWER✔✔-The physical process — This level
defines the physical processes showing data flowing from sensors and actuators into the
control level.
100% Solved Correct A+ Solution
Guide New Update
What is the purpose of assigning a Target Security Level (SL-T) during the Assess
phase of ICS security implementation? - ANSWER✔✔-To determine the existing
vulnerabilities of the system.
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
ISA-95 Functional Layer Level 0 - ANSWER✔✔-The physical process — This level
defines the physical processes showing data flowing from sensors and actuators into the
control level.
