- A
Environmental monitoring (temperature, humidity)
Why wrong: Environmental controls are not within scope of IEC 62443.
- B
Identification and authentication control
Ensures only authorized users and devices access the system.
- C
System integrity
Ensures the system has not been tampered with and operates as intended.
- D
Physical security of data centers
Why wrong: IEC 62443 focuses on cybersecurity, not physical security of data centers.
- E
Use control (authorization)
Restricts actions that authenticated users can perform.
Question 750 of 1,000
CRISC Information Technology and Security Practice Question
This CRISC practice question tests your understanding of information technology and security. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
A risk manager is evaluating the application of IEC 62443 for industrial control systems. Which THREE of the following are key security requirements addressed by this standard?
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Identification and authentication control
IEC 62443 is a series of standards specifically designed for the security of Industrial Automation and Control Systems (IACS). It addresses cybersecurity requirements to protect these systems from cyber threats. Identification and authentication control (B) is a foundational requirement, ensuring that only authorized users and devices can access the system, which is critical for preventing unauthorized access to industrial processes.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Environmental monitoring (temperature, humidity)
Why it's wrong here
Environmental controls are not within scope of IEC 62443.
- ✓
Identification and authentication control
Why this is correct
Ensures only authorized users and devices access the system.
Related concept
Read the scenario before looking for a memorised answer.
- ✓
System integrity
Why this is correct
Ensures the system has not been tampered with and operates as intended.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Physical security of data centers
Why it's wrong here
IEC 62443 focuses on cybersecurity, not physical security of data centers.
- ✓
Use control (authorization)
Why this is correct
Restricts actions that authenticated users can perform.
Related concept
Read the scenario before looking for a memorised answer.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates may confuse general operational or physical security measures (like environmental monitoring or data center security) with the specific cybersecurity controls mandated by IEC 62443 for industrial control systems.
Detailed technical explanation
How to think about this question
IEC 62443-3-3 defines seven foundational requirements (FRs), including FR2 (Identification and Authentication Control) and FR3 (Use Control/Authorization). FR2 mandates unique identification for all users and devices, with authentication mechanisms like passwords, certificates, or biometrics, and enforces session management. In a real-world scenario, a compromised HMI could be prevented from issuing unauthorized commands if proper authentication and authorization controls are in place, as per FR3.
KKey Concepts to Remember
- Read the scenario before looking for a memorised answer.
- Find the constraint that changes the correct option.
- Eliminate answers that are true in general but not in this case.
TExam Day Tips
- Watch for words such as best, first, most likely and least administrative effort.
- Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
How this comes up in practice
A junior network technician can log in to a core router but cannot reach the enable prompt or configuration mode. The AAA server is authenticating the login — but the authorisation policy only grants privilege level 1, not 15. Authentication (who you are) is working; authorisation (what you can do) is not.
What to study next
Got this wrong? Here's your next step.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
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Information Technology and Security — study guide chapter
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FAQ
Questions learners often ask
What does this CRISC question test?
Information Technology and Security — This question tests Information Technology and Security — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Identification and authentication control — IEC 62443 is a series of standards specifically designed for the security of Industrial Automation and Control Systems (IACS). It addresses cybersecurity requirements to protect these systems from cyber threats. Identification and authentication control (B) is a foundational requirement, ensuring that only authorized users and devices can access the system, which is critical for preventing unauthorized access to industrial processes.
What should I do if I get this CRISC question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
About these practice questions
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Last reviewed: Jul 4, 2026
This CRISC practice question is part of Courseiva's free ISACA certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the CRISC exam.
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