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 #1

Which is a common pitfall when initiating a CSMS program?
Available Choices (select all choices that are correct)

A. Insufficient documentation due to lack of good follow-up

B. Organizational lack of communication

C. Immediate jump into detailed risk assessment

D. Failure to relate to the mission of the organization

Discussion 0

Correct Answer: C Vote an answer

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Question #2

A company needs to create a standardized interface for exchanging real-time plant data between heterogeneous control devices while maintaining a structured organization of data elements such as folders, classes, and methods. Which feature of OPC supports this requirement?

A. OPC Tunnel Applications for firewalls

B. OPC Classic's use of Microsoft OLE and COM technologies

C. OPC Unified Architecture's browsable namespace

D. OPC Classic aware firewalls analyzing DCOM

Discussion 0

Correct Answer: C Vote an answer

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Question #3

In a defense-in-depth strategy, what is the purpose of role-based access control?
Available Choices (select all choices that are correct)

A. Ensures that users can access only the functions they need for their job

B. Ensures that users correctly manage their username and password

C. Ensures that users can access systems from remote locations

D. Ensures that users can access only certain devices on the network

Discussion 0

Correct Answer: A Vote an answer

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Question #4

How can Modbus be secured?

A. By using a VPN

B. By encrypting all data packets

C. By firewall

D. By limiting user access

Discussion 0

Correct Answer: C Vote an answer

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Question #5

An industrial facility wants to ensure that only authorized communication reaches its PLCs while minimizing disruption to time-sensitive control processes. Which type of firewall would BEST suit this need?

A. Basic packet filter firewall without protocol awareness

B. IACS-specific firewall with deep packet inspection

C. Unidirectional gateway (data diode)

D. General-purpose software firewall

Discussion 0

Correct Answer: B Vote an answer

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Question #6

What are the four documents that belong to the General category of the ISA-62443 (IEC 62443) series?

A. Part 1-1: Terminology, concepts, and models; Part 1-2: Master glossary of terms and definitions; Part 1-
3: Security program ratings; and Part 1-4: IACS security lifecycle and use cases

B. Part 1-1: Terminology, concepts, and models; Part 1-2: Master glossary of terms and definitions; Part 1-
3: System security conformance metrics; and Part 1-4: Security program requirements for IACS service providers

C. Part 1-1: Terminology, concepts, and models; Part 1-2: Master glossary of terms and definitions; Part 1-
3: Security technologies for IACS; and Part 1-4: IACS security lifecycle and use cases

D. Part 1-1: Terminology, concepts, and models; Part 1-2: Master glossary of terms and definitions; Part 1-
3: System security conformance metrics; and Part 1-4: IACS security lifecycle and use cases

Discussion 0

Correct Answer: D Vote an answer

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Question #7

What does ISASecure primarily focus on?

A. Managing asset owner operations and maintenance practices

B. Certifying IACS products and systems for cybersecurity

C. Offering assessments for integrator site engineering practices

D. Developing internal testing labs

Discussion 0

Correct Answer: B Vote an answer

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Question #8

What does Part 6-1 of the ISA/IEC 62443 series specify?

A. Patch management guidance

B. Security technologies for ICS and IACS

C. System security requirements, phases, and levels

D. Security evaluation methodology for Part 2-4

Discussion 0

Correct Answer: D Vote an answer

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Question #9

What is the FIRST step required in implementing ISO 27001?
Available Choices (select all choices that are correct)

A. Perform a security risk assessment.

B. Define an information security policy.

C. Implement strict security controls.

D. Create a security management organization.

Discussion 0

Correct Answer: A Vote an answer

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Question #10

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 require a small amount of care and feeding

D. They are effective against known vulnerabilities.

Discussion 0

Correct Answer: D Vote an answer

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Question #11

What is a requirement for product security development lifecycles?

A. Defense-in-depth strategy

B. Risk management

C. Agile development

D. Continuous integration

Discussion 0

Correct Answer: B Vote an answer

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Question #12

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

A. OPC Classic is allowed to use only port 80.

B. OPC Classic uses DCOM, which dynamically assigns any port between 1024 and 65535.

C. OPC Classic works with control devices from different manufacturers.

D. OPC Classic is an obsolete communication standard.

Discussion 0

Correct Answer: B Vote an answer

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Question #13

Using the risk matrix below, what is the risk of a medium likelihood event with high consequence?

A. Option C

B. Option B

C. Option D

D. Option A

Discussion 0

Correct Answer: B Vote an answer

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