ISA 62443 IC33 – All Questions and Answers 100% Correct
Question : What is the purpose of assigning a Target Security
Level (SL-T) during the Assess phase of ICS security implementation?
Correct answer: To determine the existing vulnerabilities of
the system.
Question : What happens during the Develop & Implement
phase of ICS security implementation?
Correct answer: Countermeasures are implemented to meet
the Target Security Level (SL-T).
Question : What is the primary goal of the Maintain phase in
ICS security implementation?
Correct answer: To ensure the Achieved Security Level (SL-
- is equal to or better than the Target Security Level (SL-
T).*
Question : What is phase 1 of the IACS Cybersecurity Life
Cycle?
Correct answer: Assess
Question : What is phase 2 of the IACS Cybersecurity Life
Cycle?
Correct answer: Develop & Implement
Question : What is phase 3 of the IACS Cybersecurity Life
Cycle?
Correct answer: Maintain phase
Question : What is step 1 of the IACS Cybersecurity Life
Cycle (Assess Phase)?
Correct answer: High-Level Cyber Risk Assessment
Question : What is step 2 of the IACS Cybersecurity Life
Cycle (Assess Phase)?
Correct answer: Allocation of IACS Assets to Security Zones
or Conduits
Question : What is step 3 of the IACS Cybersecurity Life
Cycle (Assess Phase)?
Correct answer: Detail Cyber Risk Assessment
Question : What is step 4 of the IACS Cybersecurity Life
Cycle (Develop & Implement Phase)?
Correct answer: Cybersecurity Requirements Specification
Question : What is step 5 of the IACS Cybersecurity Life
Cycle (Develop & Implement Phase)?
Correct answer: Design and engineering of Cybersecurity
countermeasures
Question : What is step 6 of the IACS Cybersecurity Life
Cycle (Develop & Implement Phase)?
Correct answer: Installation, commissioning and validation of
Cybersecurity countermeasures
Question : What is step 7 of the IACS Cybersecurity Life
Cycle (Maintain)?
Correct answer: Cybersecurity Maintenance, Monitoring and
Management of Change
Question : What is step 8 of the IACS Cybersecurity Life
Cycle (Maintain)?
Correct answer: Cyber Incident Response & Recovery
Question : What are the continuous processes activities of the
IACS Cybersecurity Life Cycle?Correct answer: Cybersecurity Management System: Policies, Procedures, Training & Awareness, Periodic Cybersecurity Audits
Question : What must be done before an assessment can be
started?
Correct answer: Create a Project Plan
ID Steps of the Project to perform the assessment ID the System Under Assessment