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ISA ISA-IEC-62443 : ISA/IEC 62443 Cybersecurity Fundamentals Specialist

ISA-IEC-62443 real exams

Exam Code: ISA-IEC-62443

Exam Name: ISA/IEC 62443 Cybersecurity Fundamentals Specialist

Updated: Jun 28, 2026

Q & A: 221 Questions and Answers

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ISA/IEC 62443 Cybersecurity Fundamentals Specialist Sample Questions:

1. After receiving an approved patch from the IACS vendor, what is BEST practice for the asset owner to follow?

A) If a low priority, there is no need to apply the patch.
B) If a high priority, apply the patch at the first unscheduled outage.
C) If a medium priority, schedule the installation within three months after receipt.
D) If no problems are experienced with the current IACS, it is not necessary to apply the patch.


2. What programs are MOST effective if they are tailored to the audience, consistent with company policy, and communicated regularly?

A) ISCS cybersecurity certification programs
B) Cybersecurity awareness programs
C) Control systems adjustment programs
D) CSMS development programs


3. What does Layer 1 of the ISO/OSI protocol stack provide?
Available Choices (select all choices that are correct)

A) User applications specific to network applications such as reading data registers in a PLC
B) The electrical and physical specifications of the data connection
C) Data encryption, routing, and end-to-end connectivity
D) Framing, converting electrical signals to data, and error checking


4. What must be established as part of the risk assessment process?

A) New technology implementation
B) Increased budget allocation
C) Target Security Level (SL-Ts)
D) Total elimination of risks


5. Which standard is recognized as part of the NIST CSF Informative References?

A) COBIT 5
B) ISA/IEC 62443
C) PCI DSS
D) ISO 9001


Solutions:

Question # 1
Answer: B
Question # 2
Answer: B
Question # 3
Answer: B
Question # 4
Answer: C
Question # 5
Answer: B

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