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: Oct 01, 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:

Question #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.
Reveal Solution  Discussion  0

Correct Answer: B  🗳️

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Question #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.
Reveal Solution  Discussion  0

Correct Answer: A  🗳️

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Question #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
Reveal Solution  Discussion  0

Correct Answer: A  🗳️

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Question #4

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

  • A. 21
  • B. 443
  • C. 80
  • D. 502
Reveal Solution  Discussion  0

Correct Answer: D  🗳️

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Question #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
Reveal Solution  Discussion  0

Correct Answer: B  🗳️

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