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| Section | Objectives |
|---|---|
| Risk and Security Management | - Risk assessment principles - Security lifecycle management in industrial systems |
| Industrial Network and System Security | - Network segmentation and architecture security - Asset identification and protection |
| ISA/IEC 62443 Framework Overview | - Key terminology and concepts (zones, conduits, security levels) - Structure and purpose of IEC 62443 standards |
| Introduction to Industrial Cybersecurity | - Overview of IT vs OT security concepts - Fundamentals of cybersecurity in industrial environments |
| Policies, Procedures, and Governance | - Compliance and governance considerations - Security policies for industrial control systems |
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NEW QUESTION # 89
What is the primary focus of Part 3-2 in the ISA/IEC 62443 series?
Answer: A
Explanation:
ISA/IEC 62443-3-2 is titled "Security risk assessment for system design" and provides a methodology for performing cybersecurity risk assessments and for the design of security zones and conduits within IACS. It describes how to identify assets, assess threats and vulnerabilities, assign Security Levels (SLs), and develop a security design based on risk.
Reference: ISA/IEC 62443-3-2:2020, Scope and Section 4.1 ("Purpose and objectives of 62443-3-2").
NEW QUESTION # 90
Which of the following is an element of security policy, organization, and awareness?
Available Choices (select all choices that are correct)
Answer: D
NEW QUESTION # 91
What caution is advised when using the vector approach to security levels?
Answer: D
Explanation:
When using the security level (SL) vector approach in ISA/IEC 62443, each Foundational Requirement (FR) can have its own SL-T value. However, these values must reflect the organization's specific risk assessment outcomes, not generic or industry default values.
"SL vectors should be derived based on the asset owner's own risk matrix and risk tolerance, ensuring that the security levels support operational needs and business requirements."
- ISA/IEC 62443-3-2:2020, Clause 6.5.2 - SL-T Vector Selection
Misalignment could lead to over- or under-protection of critical zones or conduits.
References:
ISA/IEC 62443-3-2:2020 - Clause 6.5.2
ISA/IEC 62443-3-3 - SL Vector and FR Mapping
NEW QUESTION # 92
What is recommended to use between the plant floor and the rest of the company networks?
Answer: B
Explanation:
ISA/IEC 62443 recommends using a firewall to segment and protect the plant floor (Operational Technology or OT network) from the rest of the company's Information Technology (IT) networks. Firewalls enforce security policies by controlling and monitoring traffic, helping to prevent unauthorized access and potential threats from traversing between business and control networks. Hubs and switches do not provide security; routers may offer some basic filtering, but firewalls are explicitly designed for this purpose.
Reference: ISA/IEC 62443-3-3:2013, Section 4.2.3 (Use of network segmentation and firewalls); ISA/IEC
62443-3-2:2020, Section 4.4 (Zones and Conduits).
NEW QUESTION # 93
Which of the following is the BEST example of detection-in-depth best practices?
Available Choices (select all choices that are correct)
Answer: D
NEW QUESTION # 94
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