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

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

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ISA ISA-IEC-62443 Exam Syllabus Topics:

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

ISA/IEC 62443 Cybersecurity Fundamentals Specialist Sample Questions:

1. Which model describes relationships between assets within an industrial automation and control system?

A) Zone model
B) Security level model
C) Reference architecture
D) Asset model


2. In terms of availability requirements, how do IACS and IT differ?

A) Rebooting is never acceptable in IT but tolerated in IACS.
B) IACS tolerates occasional failures while IT does not.
C) Continuous operation is expected in IT while scheduled operation is sufficient for IACS.
D) Both IACS and IT have the same availability requirements.


3. Which is the implementation of PROFIBUS over Ethernet for non-safety-related communications?
Available Choices (select all choices that are correct)

A) PROFIBUS DP
B) PROF1SAFE
C) PROFINET
D) PROFIBUS PA


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

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


5. Using the risk matrix below, what is the risk of a medium likelihood event with high consequence?

A) Option B
B) Option C
C) Option A
D) Option D


Solutions:

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

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