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

  • Exam Code: ISA-IEC-62443
  • Exam Name: ISA/IEC 62443 Cybersecurity Fundamentals Specialist
  • Updated: Aug 17, 2026
  • Q&As: 221 Questions and Answers

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ISA ISA-IEC-62443 Exam Syllabus Topics:

SectionObjectives
Topic 1: Introduction to Industrial Cybersecurity- Overview of IT vs OT security concepts
- Fundamentals of cybersecurity in industrial environments
Topic 2: ISA/IEC 62443 Framework Overview- Key terminology and concepts (zones, conduits, security levels)
- Structure and purpose of IEC 62443 standards
Topic 3: Risk and Security Management- Risk assessment principles
- Security lifecycle management in industrial systems
Topic 4: Industrial Network and System Security- Network segmentation and architecture security
- Asset identification and protection
Topic 5: Policies, Procedures, and Governance- Compliance and governance considerations
- Security policies for industrial control systems

ISA/IEC 62443 Cybersecurity Fundamentals Specialist Sample Questions:

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

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


2. What impact do increasing cybercrime attacks have?

A) They affect suppliers of essential services.
B) They focus solely on financial institutions.
C) They primarily target personal devices.
D) They lead to improved cybersecurity measures.


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

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


4. What port number is used by MODBUS TCP/IP for communication?

A) 21
B) 443
C) 80
D) 502


5. What is the name of the protocol that implements serial Modbus over Ethernet?
Available Choices (select all choices that are correct)

A) MODBUS/Ethernet
B) MODBUS/TCP
C) MODBUS/Plus
D) MODBUS/CIP


Solutions:

Question # 1
Answer: B
Question # 2
Answer: A
Question # 3
Answer: A
Question # 4
Answer: D
Question # 5
Answer: B

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