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

  • Exam Code: ISA-IEC-62443
  • Exam Name: ISA/IEC 62443 Cybersecurity Fundamentals Specialist
  • Updated: Aug 04, 2026     Q & A: 221 Questions and Answers

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Following are some reference material for actual ISA ISA-IEC-62443 exam test

ISA ISA-IEC-62443 Exam Syllabus Topics:

SectionWeightObjectives
Topic 1: Security Operations & Incident Response20%- Incident handling and response processes
- Cybersecurity Management System (CSMS)
- Monitoring, maintenance and continuous improvement
Topic 2: Access Control & Identity Management15%- User authentication and authorization
- Role-based access control
- Security policies and procedures
Topic 3: Security Fundamentals & ISA/IEC 62443 Framework20%- Zones and conduits model
- Structure and parts of ISA/IEC 62443 standards
- Foundational security requirements
- Core security principles: CIA triad, defense-in-depth
Topic 4: Industrial Automation and Control Systems (IACS) Overview15%- IACS components, architectures and protocols
- Cybersecurity importance in industrial environments
- Differences between IT and OT security
Topic 5: Industrial Network Security30%- Threats, vulnerabilities and risk assessment
- Network segmentation and security architecture
- Industrial protocols security

ISA/IEC 62443 Cybersecurity Fundamentals Specialist Sample Questions:

1. Which organization manages the ISASecure conformance certification program?
Available Choices (select all choices that are correct)

A) Automation Federation
B) Security Compliance Institute
C) American Society for Industrial Security
D) National Institute of Standards and Technology


2. Which is the PRIMARY reason why Modbus over Ethernet is easy to manaqe in a firewall?
Available Choices (select all choices that are correct)

A) Modbus uses explicit source and destination IP addresses and a sinqle known TCP port.
B) Modbus is a proprietary protocol that is widely supported by vendors.
C) Modbus uses a single master to communicate with multiple slaves usinq simple commands.
D) Modbus has no known security vulnerabilities, so firewall rules are simple to implement.


3. What is one challenge associated with firewalls?

A) Deciding how they should be configured
B) Need for constant updates
C) That they can only filter HTTP traffic
D) Difficulty of installation


4. What is the primary audience for Part 2-5 of the ISA/IEC 62443 Series - Policies & Procedures group of standards?

A) Product suppliers
B) Service providers
C) Asset owners
D) System integrators


5. Under User Access Control (SP Element 6), which of the following is included in USER 1 - Identification and Authentication?

A) Backup restoration
B) Password protection
C) Incident handling and response
D) Mutual authentication


Solutions:

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

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