Free ISA ISA-IEC-62443 Practice Test & Real Exam Questions

Exam Code/Number: ISA-IEC-62443
Exam Name/Title: ISA/IEC 62443 Cybersecurity Fundamentals Specialist
Certification Provider: ISA
Corresponding Certification: ISA Cybersecurity

Exam Questions: 221
Updated On: Jul 07, 2026

Question #27

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

A. Ensure adequate responses to network resource requests

B. Notify the proper authority about security violations

C. Control access to information

D. Protect against unauthorized operation

Discussion 0

Correct Answer: B Vote an answer

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Question #28

What caution is advised when using the vector approach to security levels?

A. Vector approaches eliminate the need for risk models.

B. Vector values must align with the asset owner's risk matrix and risk appetite.

C. Vector values should be ignored if they do not match industry standards.

D. Vector approaches are always more accurate than qualitative methods.

Discussion 0

Correct Answer: B Vote an answer

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Question #29

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/Ethernet

C. MODBUS/TCP

D. MODBUS/CIP

Discussion 0

Correct Answer: C Vote an answer

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Question #30

According to ISA/IEC TR 62443-1-5, which documents can be referenced when creating a security profile?

A. Only ISA/IEC 62443-1-1 and 1-2

B. Any cybersecurity standard outside the ISA/IEC 62443 series

C. Only ISA/IEC 62443-3-3 and 4-1

D. ISA/IEC 62443-2-1, 2-4, 3-3, 4-1, and 4-2

Discussion 0

Correct Answer: D Vote an answer

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Question #31

What is the purpose of ISO/IEC 15408 (Common Criteria)?
Available Choices (select all choices that are correct)

A. To define a security management organization

B. To describe what constitutes a secure product

C. To define a product development evaluation methodology

D. To describe a process for risk management

Discussion 0

Correct Answer: C Vote an answer

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Question #32

Which layer deals with data format conversion and encryption?

A. Application

B. Data link

C. Session

D. Presentation

Discussion 0

Correct Answer: D Vote an answer

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Question #33

What are the three main components of the ISASecure Integrated Threat Analysis (ITA) Program?
Available Choices (select all choices that are correct)

A. Software robustness security testing, functional software assessment assurance, and essential security functionality assessment

B. Communications robustness testing, functional security assurance, and software robustness communications

C. Software development security assurance, functional security assessment, and communications robustness testing

D. Communication speed, disaster recovery, and essential security functionality assessment

Discussion 0

Correct Answer: C Vote an answer

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Question #34

Which is a physical layer standard for serial communications between two or more devices?
Available Choices (select all choices that are correct)

A. RS435

B. RS232

C. RS235

D. RS432

Discussion 0

Correct Answer: B Vote an answer

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Question #35

Within the National Institute of Standards and Technoloqv Cybersecuritv Framework v1.0 (NIST CSF), what is the status of the ISA 62443 standards?
Available Choices (select all choices that are correct)

A. They are not used.

B. They are used as informative references.

C. They are under consideration for future use.

D. They are used as normative references.

Discussion 0

Correct Answer: B Vote an answer

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Question #36

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

A. Indirect access to the Internet

B. Secure data transfer

C. Increased bandwidth

D. Simplified security architecture

Discussion 0

Correct Answer: A Vote an answer

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Question #37

What do the tiers in the NIST CSF represent?

A. An organization's cybersecurity profile

B. Categories of cybersecurity threats

C. Stages of incident response

D. Different types of cybersecurity software

Discussion 0

Correct Answer: A Vote an answer

Question #38

Which of the following attacks relies on a human weakness to succeed?
Available Choices (select all choices that are correct)

A. Denial-of-service

B. Spoofing

C. Phishing

D. Escalation-of-privileges

Discussion 0

Correct Answer: C Vote an answer

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Question #39

What type of cyberattack was discussed in the Ukrainian power grid case study?

A. Insider threat

B. Random hacking

C. Nation state

D. Internal sabotage

Discussion 0

Correct Answer: C Vote an answer

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