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

ISA-IEC-62443 real exams

Exam Code: ISA-IEC-62443

Exam Name: ISA/IEC 62443 Cybersecurity Fundamentals Specialist

Updated: Sep 01, 2026

Q & A: 221 Questions and Answers

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ISA ISA-IEC-62443 Exam Syllabus Topics:

SectionWeightObjectives
Security Operations & Incident Response20%- Monitoring, maintenance and continuous improvement
- Incident handling and response processes
- Cybersecurity Management System (CSMS)
Industrial Network Security30%- Threats, vulnerabilities and risk assessment
- Network segmentation and security architecture
- Industrial protocols security
Access Control & Identity Management15%- Security policies and procedures
- User authentication and authorization
- Role-based access control
Industrial Automation and Control Systems (IACS) Overview15%- Cybersecurity importance in industrial environments
- IACS components, architectures and protocols
- Differences between IT and OT security
Security Fundamentals & ISA/IEC 62443 Framework20%- Foundational security requirements
- Zones and conduits model
- Core security principles: CIA triad, defense-in-depth
- Structure and parts of ISA/IEC 62443 standards

ISA/IEC 62443 Cybersecurity Fundamentals Specialist Sample Questions:

Question 1

Which is a reason for
and physical security regulations meeting a mixed resistance?
Available Choices (select all choices that are correct)

A. Regulations contain only informative elements.
B. Regulations are voluntary documents.
C. There are a limited number of enforced cybersecurity and physical security regulations.
D. Cybersecurity risks can best be managed individually and in isolation.


Question 2

How should CSMS organizational responsibilities or training be handled over time?

A. They should be expanded indefinitely.
B. They should remain constant.
C. They should be ignored.
D. They should be evaluated.


Question 3

Why is OPC Classic considered firewall unfriendly?
Available Choices (select all choices that are correct)

A. OPC Classic is an obsolete communication standard.
B. OPC Classic is allowed to use only port 80.
C. OPC Classic uses DCOM, which dynamically assigns any port between 1024 and 65535.
D. OPC Classic works with control devices from different manufacturers.


Question 4

Which of the following is an industry sector-specific standard?
Available Choices (select all choices that are correct)

A. ISO 27001
B. ISA-62443 (EC 62443)
C. NIST SP800-82
D. API 1164


Question 5

Which of the following is the BEST reason for periodic audits?
Available Choices (select all choices that are correct)

A. To adhere to a published or approved schedule
B. To meet regulations
C. To confirm audit procedures
D. To validate that security policies and procedures are performing


Solutions:

Question 1
Answer: C
Question 2
Answer: D
Question 3
Answer: C
Question 4
Answer: D
Question 5
Answer: D

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