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ISA IC34 ISA-IEC 62443 Cybersecurity Design Specialist

Verified practice questions with detailed answers, clear explanations, and community discussion.

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Question 1 of 100

Which protection strategy denies malware from entering an engineering workstation via a Universal Serial Bus (USB) port?
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Correct answer: B

Physical port blocking prevents USB devices from being connected to the engineering workstation, eliminating a common path for malware carried on removable media. It controls the physical interface itself rather than relying on users or software to identify malicious content. Whitelisting can limit which applications run, but it does not stop an infected USB device from being inserted.

Question 2 of 100

What maturity level does a service provider have if the performance can be shown to be repeatable across the organization?
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Correct answer: C

A Defined maturity level indicates that service delivery performance is repeatable across the organization. At this level, processes are established, documented, and consistently applied rather than depending on individual effort or isolated practices. Managed maturity focuses on controlling and measuring processes, while Improving maturity emphasizes continual optimization of already defined and repeatable practices.

Question 3 of 100

Which activities likely would be included in cybersecurity robustness testing?
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Correct answer: A

Cybersecurity robustness testing evaluates how an industrial system behaves under adverse or abnormal conditions while maintaining its required security posture. Vulnerability scans identify known weaknesses in hosts, applications, and services, while network storms test resilience against excessive traffic, broadcast activity, or communication overload. Packet captures and antivirus scans are useful diagnostic or maintenance activities, but they do not directly test system robustness under stress.

Question 4 of 100

What is NOT a compensating countermeasure?
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Correct answer: A

An insurance policy transfers or mitigates the financial impact of a cybersecurity incident, but it does not reduce the likelihood of compromise or provide protection to the industrial system. Compensating countermeasures are alternative safeguards used when a primary security requirement cannot be implemented. External resources, added physical security, and enhanced background checks can provide operational or security controls that help reduce risk.

Question 5 of 100

Which step is included in ISA/IEC-62443-2-1 (ANSI/ISA 99.02.01) requirements for network segmentation?
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Correct answer: C

Developing a network segmentation architecture is an explicit requirement because it defines how the IACS network is divided and how communications are controlled between segments. The architecture applies security boundaries based on risk, operational needs, and required data flows, reducing the ability of an incident to spread across the environment. Zone and conduit models can support this design, but they are modeling concepts rather than the required segmentation step itself.

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Charles Sirois
Canada
As this was my first certification exam, I was understandably nervous about what to expect. These study materials made the preparation process much easier, and many of the questions closely reflected those on the actual exam.
Lance Chambers
United States
Wasted about a month going through the free dump sites scattered all over reddit, half the answers were wrong and the other half were for a version of the exam that doesn't even exist anymore. Eventually gave in and paid the small fee here, and the difference was night and day.
Alisha Kelly
Italy
Honestly, I had already gone through the official documentation quite thoroughly, but still didn't feel fully confident going in. This helped things finally click for me. I realized I knew the material, but just hadn't connected all the pieces yet.
Casper Claassen
Netherlands
Used this along with Microsoft Learn and the combo worked really well. The practice questions made the stuff I'd read actually stick. Passed first attempt, no complaints from me.
Gabriele Ghesla
Italy
The content is accurate and clearly presented, and it's more affordable than competitors. The team has been incredibly responsive whenever I've had an issue, and they've been open to small changes that improve the platform.
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Neil Savage
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A very quick response was received via email when a link issue occurred. The study materials provided were high quality and extremely helpful. I was able to complete the test successfully. Many thanks for the excellent support.
Morgan Farmer
United Kingdom
I don't usually leave reviews, but this one felt worth sharing. The questions were quite close to what actually appeared on the exam, more than I expected. I spent about a week going through the material before my test, and it helped me feel more prepared.
Remi Nuyts
United States
Passed ITIL 4 Foundation with 87%. Material was enough by itself.
Archie Hopkins
United States
I had a smooth experience from start to finish. Access was available right away, no technical issues, which made it easy to get started. The content felt relevant and aligned well with what I was looking for.
Nancy Mcbride
United States
Does what it says it does. Content felt solid, nothing confusing to navigate and I didn't run into any weird issues. I been putting off scheduling the exam for a while and going through this gave me enough confidence to finally book it and pass.
Neil Savage
United States
A very quick response was received via email when a link issue occurred. The study materials provided were high quality and extremely helpful. I was able to complete the test successfully. Many thanks for the excellent support.

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