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ISA/IEC 62443 Cybersecurity Fundamentals Specialist Sample Questions:

1. What change was introduced in the second edition (2024) of ISA-62443-2-1 compared to the first edition (2010)?

A) Introduction of a new PDCA cycle framework
B) Focus only on individual system components rather than overall system
C) Removal of supply chain security considerations
D) Elimination of duplication of ISMS requirements

2. What does IACS stand for?

A) Industrial Automation and Control Systems
B) International Automated and Control Systems
C) Industrial Associations and Control Systems
D) Integrated Automation and Control Systems

3. Which is a role of the application layer?
Available Choices (select all choices that are correct)

A) Includes user applications specific to network applications such as email, file transfer, and reading data registers in a PLC
B) Delivers and formats information, possibly with encryption and security
C) Provides the mechanism for opening, closing, and managing a session between end-user application processes
D) Includes protocols specific to network applications such as email, file transfer, and reading data registers in a PLC

4. Which characteristic is MOST closely associated with the deployment of a demilitarized zone (DMZ)?
Available Choices (select all choices that are correct)

A) Internet access through the firewall is allowed.
B) Email is prevented, thereby mitigating the risk of phishing attempts.
C) Level 0 can only interact with Level 1 through the firewall.
D) Level 4 systems must use the DMZ to communicate with Level 3 and below.

5. A company is developing an automation solution and wants to align its cybersecurity efforts with ISA/IEC
62443 standards. Which lifecycle phases should be integrated into their project plan to cover both security and automation solution security comprehensively?

A) Verification and Validation phase only
B) Operate and Maintain phases exclusively
C) Design and Implement phases
D) All phases

Solutions: