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

ISA-IEC-62443 real exams

Exam Code: ISA-IEC-62443

Exam Name: ISA/IEC 62443 Cybersecurity Fundamentals Specialist

Updated: Aug 30, 2026

Q & A: 221 Questions and Answers

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ISA ISA-IEC-62443 Exam Syllabus Topics:

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

ISA/IEC 62443 Cybersecurity Fundamentals Specialist Sample Questions:

Question 1

Which of the following ISA-99 (IEC 62443) Reference Model levels is named correctly?

A. Level 4: Process
B. Level 2: Quality Control
C. Level 3: Operations Management
D. Level 1: Supervisory Control


Question 2

Which is NOT a potential consequence for organizations that fail to prioritize control system security?

A. Violation of legal and regulatory requirements
B. Decreased energy consumption
C. Unauthorized access, theft, or misuse of data
D. Personal injury


Question 3

Which statement is TRUE regarding Intrusion Detection Systems (IDS)?
Available Choices (select all choices that are correct)

A. They are very inexpensive to design and deploy.
B. Modern IDS recognize IACS devices by default.
C. They are effective against known vulnerabilities.
D. They require a small amount of care and feeding


Question 4

Which protocol is commonly used for managing the security of message transmission on the Internet via web browsers?

A. TLS
B. L2TP
C. PPTP
D. IPsec


Question 5

Which of the following is a cause for the increase in attacks on IACS?
Available Choices (select all choices that are correct)

A. Knowledge of exploits and tools readily available on the Internet
B. Fewer personnel with system knowledge having access to IACS
C. Use of proprietary communications protocols
D. The move away from commercial off the shelf (COTS) systems, protocols, and networks


Solutions:

Question 1
Answer: C
Question 2
Answer: B
Question 3
Answer: C
Question 4
Answer: A
Question 5
Answer: A,C

Related Certifications
ISA Cybersecurity
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