ISA 62443 IC33 Verified Questions And Answers With Latest Quiz 2024/2025 Updates
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ISA 62443 IC33
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ISA 62443 IC33
ISA 62443 IC33 Verified Questions And Answers With Latest Quiz 2024/2025 Updates
What is the purpose of assigning a Target Security Level (SL-T) during the Assess phase of ICS security implementation? ANS To determine the existing vulnerabilities of the system.
What happens during the Develop ...
ISA 62443 IC33 Verified Questions And Answers
What is the purpose of assigning a Target Security Level (SL-T) during the Assess phase of ICS
security implementation? ANS To determine the existing vulnerabilities of the system.
What happens during the Develop & Implement phase of ICS security implementation? ANS
Countermeasures are implemented to meet the Target Security Level (SL-T).
What is the primary goal of the Maintain phase in ICS security implementation? ANS 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? ANS Assess
What is phase 2 of the IACS Cybersecurity Life Cycle? ANS Develop & Implement
What is phase 3 of the IACS Cybersecurity Life Cycle? ANS Maintain phase
What is step 1 of the IACS Cybersecurity Life Cycle (Assess Phase)? ANS High-Level Cyber
Risk Assessment
What is step 2 of the IACS Cybersecurity Life Cycle (Assess Phase)? ANS Allocation of IACS
Assets to Security Zones or Conduits
What is step 3 of the IACS Cybersecurity Life Cycle (Assess Phase)? ANS Detail Cyber Risk
Assessment
What is step 4 of the IACS Cybersecurity Life Cycle (Develop & Implement Phase)? ANS
Cybersecurity Requirements Specification
What is step 5 of the IACS Cybersecurity Life Cycle (Develop & Implement Phase)? ANS
Design and engineering of Cybersecurity countermeasures
,What is step 6 of the IACS Cybersecurity Life Cycle (Develop & Implement Phase)? ANS
Installation, commissioning and validation of Cybersecurity countermeasures
What is step 7 of the IACS Cybersecurity Life Cycle (Maintain)? ANS Cybersecurity
Maintenance, Monitoring and Management of Change
What is step 8 of the IACS Cybersecurity Life Cycle (Maintain)? ANS Cyber Incident Response
& Recovery
What are the continuous processes activities of the IACS Cybersecurity Life Cycle? ANS
Cybersecurity Management System: Policies, Procedures, Training & Awareness, Periodic
Cybersecurity Audits
What must be done before an assessment can be started? ANS Create a Project Plan
ID Steps of the Project to perform the assessment
ID the System Under Assessment
System Under Consideration (SUC) ANS 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) ANS The system that is being evaluated for compliance with
standards.
What are some required information gathering items before the assessment can begin? ANS
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 ANS Depiction of system components, their connectivity, and
physical locations.
Physical System Architecture Diagram ANS 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 ANS 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 ANS True
ISA-95 Functional Layer Level 0 ANS The physical process — This level defines the physical
processes showing data flowing from sensors and actuators into the control level.
ISA-95 Functional Layer Level 1 ANS Intelligent devices — Devices in this level sense and
manipule the physical processes. Process, sensors, analyzers, actuators and related instrumentation.
This layer shows how PLCs receive field device data, process it, and then send commands back to
the field devices.
ISA-95 Functional Layer Level 2 ANS Control systems — Supervising, monitoring and
controlling the physical processes. Real-time controls and software; DCS, human-machine interface
(HMI); supervisory and data acquisition (SCADA) software. This level represents how the control
systems manage PLCs, how operator commands are processed, and how alarm conditions are
handled.
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