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| Section | Objectives |
|---|---|
| Topic 1: Risk and Security Management | - Security lifecycle management in industrial systems - Risk assessment principles |
| Topic 2: Introduction to Industrial Cybersecurity | - Fundamentals of cybersecurity in industrial environments - Overview of IT vs OT security concepts |
| Topic 3: Policies, Procedures, and Governance | - Security policies for industrial control systems - Compliance and governance considerations |
| Topic 4: ISA/IEC 62443 Framework Overview | - Key terminology and concepts (zones, conduits, security levels) - Structure and purpose of IEC 62443 standards |
| Topic 5: Industrial Network and System Security | - Asset identification and protection - Network segmentation and architecture security |
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質問 # 107
After receiving an approved patch from the IACS vendor, what is BEST practice for the asset owner to follow?
正解：A
解説：
Per ISA/IEC 62443-2-1 and 62443-2-3, proper patch management is part of operational cybersecurity. For high-priority or critical security patches, the best practice is to apply the patch at the earliest possible opportunity, often during the next available unscheduled or scheduled outage.
"Asset owners shall define procedures for evaluating and applying patches based on criticality and potential impact. High-priority patches should be applied at the earliest opportunity, preferably at the first available system downtime."
- ISA/IEC 62443-2-3:2015, Clause 6.1 - Patch Management Process
Waiting unnecessarily or skipping patches because "nothing is broken" is not acceptable in security-critical environments.
References:
ISA/IEC 62443-2-1:2010 - Clause 4.4.3.2
ISA/IEC 62443-2-3:2015 - Patch Management Guidance
質問 # 108
Which of the following is the BEST example of detection-in-depth best practices?
Available Choices (select all choices that are correct)
正解：A
解説：
The best practice for detection-in-depth according to ISA/IEC 62443 involves layering different types of security controls that operate effectively under multiple scenarios and across various zones within an environment. IDS (Intrusion Detection Systems) sensors deployed across multiple zones within a production environment exemplify this strategy. By positioning sensors in various strategic locations, organizations can monitor for anomalous activities and potential threats throughout their network, thus enhancing their ability to detect and respond to incidents before they escalate. This deployment aligns with the ISA/IEC 62443 focus on comprehensive coverage and redundancy in cybersecurity mechanisms, contrasting with relying solely on perimeter defenses or single-point security solutions.
質問 # 109
Which of the following refers to internal rules that govern how an organization protects critical system
resources?
Available Choices (select all choices that are correct)
正解：A
質問 # 110
What is the FIRST step required in implementing ISO 27001?
Available Choices (select all choices that are correct)
正解：B
解説：
The first step in implementing ISO 27001, an international standard for information security management systems (ISMS), is to perform a security risk assessment. This initial step is critical as it helps identify the organization's information assets that could be at risk, assess the vulnerabilities and threats to these assets, and evaluate their potential impacts. This risk assessment forms the foundation for defining appropriate security controls and measures tailored to the organization's specific needs. Starting with a risk assessment ensures that the security controls implemented are aligned with the actual risks the organization faces, making the ISMS more effective and targeted.ISA/IEC 62443 Cybersecurity Fundamentals References:
* Although ISO 27001 is not part of ISA/IEC 62443, it shares common principles in cybersecurity management by starting with a comprehensive understanding and assessment of security risks, which is a fundamental aspect in both standards for setting up effective security practices.
質問 # 111
In the context of global frameworks, what does the acronym SDO stand for?
正解：C
解説：
In the context of international standards and frameworks, SDO stands for "Standards Development Organization." SDOs are organizations like ISA, IEC, ISO, and NIST, which are responsible for developing, maintaining, and publishing standards used globally for industrial cybersecurity and other domains.
Reference: ISA/IEC 62443-1-1:2007, Section 3.1 (Abbreviations and terms); official definitions in standards literature.
質問 # 112
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