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

ISA-IEC-62443

Exam Code: ISA-IEC-62443

Exam Name: ISA/IEC 62443 Cybersecurity Fundamentals Specialist

Updated: Aug 25, 2026

Q & A: 221 Questions and Answers

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ISA ISA-IEC-62443 Exam Syllabus Topics:
SectionObjectives
Creating A Security Program- Defining information security policy
- Security management organization
- Developing a long-term security program
How Cyberattacks Happen- Cyber threats and attack vectors
- Vulnerabilities in industrial systems
- Case studies of industrial cyber incidents
Validating or Verifying the Security of Systems- Security validation and verification techniques
- Continuous improvement of security measures
- Auditing and compliance
Risk Analysis- Risk and vulnerability analysis techniques
- Risk management fundamentals
- Cybersecurity risk assessment concepts
Addressing Risk with Security Policy, Organization, and Awareness- Security awareness and training
- Organizational security roles and responsibilities
- Security policies and procedures
Addressing Risk with Selected Security Counter Measures- Anti-virus and endpoint protection
- Virtual Private Networks (VPNs)
- Firewalls and network security devices
- Patch management
Monitoring and Improving the CSMS- Incident detection and response
- Security lifecycle management
- Continuous monitoring of IACS cybersecurity
Addressing Risk with Implementation Measures- Defense-in-depth strategy
- Access control principles
- Industrial network architecture and segmentation
- Zones and conduits model
Understanding the Current Industrial Security Environment- Security challenges in OT environments
- Current state of industrial control systems security
- Convergence of IT and OT
ISA/IEC 62443 Cybersecurity Fundamentals Specialist Sample Questions:

Question 1

What does a demilitarized zone (DMZ) provide in network security?

A. Secure data transfer
B. Increased bandwidth
C. Indirect access to the Internet
D. Simplified security architecture


Question 2

Which term refers to legally enforceable rules created by government bodies or authorized organizations?

A. Regulations
B. Special Publications
C. Frameworks
D. Standards


Question 3

Which of the following is a recommended default rule for IACS firewalls?
Available Choices (select all choices that are correct)

A. Block all traffic by default.
B. Allow IACS devices to access the Internet.
C. Allow all traffic by default.
D. Allow traffic directly from the IACS network to the enterprise network.


Question 4

What type of malware disrupted an emergency shutdown capability in safety systems?

A. Stuxnet
B. Triton or Trisis
C. Zeus
D. WannaCry


Question 5

What does Foundational Requirement 6 (FR 6) - Timely Response to Events (TRE) require?

A. Ensure adequate responses to network resource requests
B. Protect against unauthorized operation
C. Notify the proper authority about security violations
D. Control access to information


Solutions:

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

Related Certifications
ISA Cybersecurity
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