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ISA/IEC 62443 Cybersecurity Fundamentals Specialist Sample Questions:

1. An industrial facility wants to ensure that only authorized systems reach its PLCs while minimizing disruption to time-sensitive control processes. Which type of firewall would BEST suit this need?

A) Basic packet filter firewall without protocol awareness
B) General-purpose software firewall
C) IACS-specific firewall with deep packet inspection
D) Unidirectional gateway (data diode)

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

3. What type of malware disrupted an emergency shutdown capability in safety systems?

A) Zeus
B) Triton or Trisis
C) WannaCry
D) Stuxnet

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

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

5. The Risk Analysis category contains background information that is used where?
Available Choices (select all choices that are correct)

A) (Elements external to the CSMS
B) Many other elements in the CSMS
C) Only the Assessment element
D) Only the Risk ID element

Solutions: