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ISA ISA-IEC-62443 Exam Syllabus Topics:

Section	Weight	Objectives
Security Operations & Incident Response	20%	- Monitoring, maintenance and continuous improvement - Cybersecurity Management System (CSMS) - Incident handling and response processes
Security Fundamentals & ISA/IEC 62443 Framework	20%	- Foundational security requirements - Structure and parts of ISA/IEC 62443 standards - Zones and conduits model - Core security principles: CIA triad, defense-in-depth
Industrial Automation and Control Systems (IACS) Overview	15%	- Cybersecurity importance in industrial environments - Differences between IT and OT security - IACS components, architectures and protocols
Access Control & Identity Management	15%	- Role-based access control - User authentication and authorization - Security policies and procedures
Industrial Network Security	30%	- Industrial protocols security - Network segmentation and security architecture - Threats, vulnerabilities and risk assessment

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ISA-IEC-62443関連復習問題集、ISA-IEC-62443受験練習参考書

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ISA/IEC 62443 Cybersecurity Fundamentals Specialist 認定 ISA-IEC-62443 試験問題 (Q20-Q25):

質問 # 20
Which policies and procedures publication is titled Patch Manaqement in the IACS Environment?
Available Choices (select all choices that are correct)

A. ISA-TR62443-2-3
B. ISA-62443-4-2
C. ISA-TR62443-1-4
D. ISA-62443-3-3

正解：A

解説：
ISA-TR62443-2-3 is the technical report that describes the requirements for asset owners and industrial automation and control system (IACS) product suppliers that have established and are now maintaining an IACS patch management program. Patch management is the process of applying software updates to fix vulnerabilities, bugs, or performance issues in the IACS components. Patch management is an essential part of maintaining the security and reliability of the IACS environment. The technical report provides guidance on how to establish a patch management policy, how to assess the impact and risk of patches, how to test and deploy patches, and how to monitor and audit the patch management process. References: 1, 2, 3

質問 # 21
Which of the following is an activity that should trigger a review of the CSMS?
Available Choices (select all choices that are correct)

A. New technical controls
B. Budgeting
C. Security incident exposing previously unknown risk.
D. Organizational restructuring

正解：A、C、D

解説：
According to the ISA/IEC 62443-2-1 standard, a review of the CSMS should be triggered by any changes that affect the cybersecurity risk of the industrial automation and control system (IACS), such as new technical controls, organizational restructuring, or security incidents1. Budgeting is not a trigger for CSMS review, unless it impacts the cybersecurity risk level or the CSMS itself2. References: 1: ISA/IEC 62443-2-1:2010, Section 4.3.3.3 2: A Practical Approach to Adopting the IEC 62443 Standards, ISAGCA Blog3

質問 # 22
What are the two elements of the risk analysis category of an IACS?

A. Risk evaluation and risk identification
B. Business recovery and risk elimination or mitigation
C. Business rationale and risk identification and classification
D. Business rationale and risk reduction and avoidance

正解：C

解説：
According to ISA/IEC 62443-3-2, the risk analysis phase in the IACS security lifecycle includes both the business rationale and the risk identification and classification. This ensures that risk decisions are based not only on technical vulnerability but also on business impact and operational context.
"The risk analysis process includes identification and classification of risks based on a defined business rationale. This ensures that the protection requirements are aligned with the organization's risk tolerance and operational priorities."
- ISA/IEC 62443-3-2:2020, Section 6.4 - Risk Assessment and SL Targeting The term business rationale refers to understanding the value and criticality of the asset or system in order to make informed security decisions.
References:
ISA/IEC 62443-3-2:2020 - Section 6.4
ISA/IEC 62443-2-1 - Section 4.3.2: Risk and business continuity alignment

質問 # 23
What.are the two elements of the risk analysis category of an IACS?
Available Choices (select all choices that are correct)

A. Risk evaluation and risk identification
B. Business recovery and risk elimination or mitigation
C. Business rationale and risk identification and classification
D. Business rationale and risk reduction and avoidance

正解：C

質問 # 24
Which of the following is an activity that should trigger a review of the CSMS?
Available Choices (select all choices that are correct)

A. Organizational restructuring
B. Budgeting
C. New technical controls
D. Security incident exposing previously unknown risk.

正解：D

質問 # 25
......

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