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

ISA-IEC-62443

Exam Code: ISA-IEC-62443

Exam Name: ISA/IEC 62443 Cybersecurity Fundamentals Specialist

Updated: Jul 18, 2026

Q & A: 221 Questions and Answers

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ISA/IEC 62443 Cybersecurity Fundamentals Specialist Sample Questions:

1. Which layer in the Open Systems Interconnection (OSI) model would include the use of the File Transfer Protocol (FTP)?
Available Choices (select all choices that are correct)

A) Session layer
B) Application layer
C) Data link layer
D) Transport layer


2. Which of the following is the BEST example of detection-in-depth best practices?
Available Choices (select all choices that are correct)

A) Role-based access control and unusual data transfer patterns
B) Role-based access control and VPNs
C) Firewalls and unexpected protocols being used
D) IDS sensors deployed within multiple zones in the production environment


3. Which service does an Intrusion Detection System (IDS) provide?
Available Choices (select all choices that are correct)

A) It detects attempts to break into or misuse a computer system.
B) It blocks malicious activity in networks and computer systems.
C) It is the lock on the door for networks and computer systems.
D) It is effective against all vulnerabilities in networks and computer systems.


4. If an asset owner wants to improve their organization's ability to respond during a cyberattack, which of the following activities would be MOST appropriate to implement?

A) Tabletop exercises
B) Architecture awareness workshops
C) Anomaly detection drills for operators
D) Password hygiene campaign


5. What makes patching in IACS environments particularly complex?

A) Patches never require testing before deployment
B) Cyber threats do not affect IACS systems
C) The availability of unlimited maintenance windows
D) Continuous operations and safety concerns


Solutions:

Question # 1
Answer: B
Question # 2
Answer: D
Question # 3
Answer: A
Question # 4
Answer: A
Question # 5
Answer: D

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