ISA/IEC 62443 Cybersecurity Fundamentals Specialist — Question 63

Which of the following provides the overall conceptual basis in the design of an appropriate security program?

Answer options

• A. Asset model
• B. Zone model
• C. Reference model
• D. Reference architecture

Correct answer: C

Explanation

The correct answer is C, as the Reference model establishes the theoretical foundation for security program design. The Asset model focuses on identifying and managing assets, the Zone model categorizes areas needing protection, and Reference architecture provides a structural design but lacks the broad conceptual basis that the Reference model offers.