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| Section | Weight | Objectives |
|---|---|---|
| Security Fundamentals & ISA/IEC 62443 Framework | 20% | - Foundational security requirements - Zones and conduits model - Structure and parts of ISA/IEC 62443 standards - Core security principles: CIA triad, defense-in-depth |
| Access Control & Identity Management | 15% | - Security policies and procedures - Role-based access control - User authentication and authorization |
| Security Operations & Incident Response | 20% | - Incident handling and response processes - Monitoring, maintenance and continuous improvement - Cybersecurity Management System (CSMS) |
| Industrial Network Security | 30% | - Threats, vulnerabilities and risk assessment - Industrial protocols security - Network segmentation and security architecture |
| Industrial Automation and Control Systems (IACS) Overview | 15% | - Cybersecurity importance in industrial environments - IACS components, architectures and protocols - Differences between IT and OT security |
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NEW QUESTION # 164
According to ISA/IEC TR 62443-1-5, which documents can be referenced when creating a security profile?
Answer: B
Explanation:
ISA/IEC TR 62443-1-5 provides guidance on developing and using security profiles to represent the security requirements of IACS systems. These profiles reference detailed technical and procedural requirements drawn from multiple documents in the 62443 series.
"The creation of security profiles should leverage relevant requirements and foundational elements from:
ISA/IEC 62443-2-1 (Security Program Requirements for IACS Asset Owners) ISA/IEC 62443-2-4 (Requirements for IACS Service Providers) ISA/IEC 62443-3-3 (System Security Requirements and Security Levels) ISA/IEC 62443-4-1 (Secure Product Development Lifecycle Requirements) ISA/IEC 62443-4-2 (Technical Security Requirements for IACS Components)"
- ISA/IEC TR 62443-1-5:2018, Clause 5.2
This ensures a comprehensive and layered security profile based on technical, system, and organizational controls.
References:
ISA/IEC TR 62443-1-5:2018 - Clause 5.2
Cross-referenced documents: 62443-2-1, 2-4, 3-3, 4-1, 4-2
NEW QUESTION # 165
Which of the following attacks relies on a human weakness to succeed?
Available Choices (select all choices that are correct)
Answer: B
NEW QUESTION # 166
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?
Answer: A
Explanation:
ISA/IEC 62443 emphasizes preparedness and coordinated response as part of incident handling and response requirements.
Step 1: Purpose of tabletop exercises
Tabletop exercises simulate cyber incidents and require participants to practice decision-making, communication, escalation, and coordination without impacting live systems.
Step 2: Alignment with SP Element 7
SP Element 7 focuses on incident handling and response. Tabletop exercises directly validate these processes and identify gaps before a real incident occurs.
Step 3: Why other options are less effective for response readiness
Password hygiene improves prevention, not response. Architecture workshops build awareness, not reaction capability. Operator anomaly drills focus on detection, not coordinated response.
Step 4: Operational benefit
ISA/IEC 62443 stresses that response effectiveness depends on people and processes being exercised in advance.
Thus, tabletop exercises are the most appropriate activity.
NEW QUESTION # 167
How many maturity levels (ML) are established for evaluation criteria according to ISA/IEC 62443-2-4?
Answer: D
Explanation:
According to ISA/IEC 62443-2-4, which defines security requirements for IACS service providers, four maturity levels (ML1-ML4) are established as evaluation criteria for measuring the maturity of cybersecurity practices.
These are:
ML1 - Initial
ML2 - Managed
ML3 - Defined
ML4 - Improving
"This standard defines four maturity levels (ML1 through ML4) to assess the extent of cybersecurity process implementation for service providers."
- ISA/IEC 62443-2-4:2015, Clause 5.1 - Maturity Level Overview
These maturity levels are used to benchmark and certify service provider practices across different domains like patching, access control, and incident response.
References:
ISA/IEC 62443-2-4:2015 - Clause 5.1
ISA/IEC 62443-1-1 - Definitions of maturity models
NEW QUESTION # 168
Which of the following is an example of separation of duties as a part of system development and maintenance?
Available Choices (select all choices that are correct)
Answer: C
Explanation:
Separation of duties is a security principle that aims to prevent fraud, errors, conflicts of interest, or misuse of resources by dividing critical tasks or functions among different people or teams. It is one of the foundational requirements (FRs) of the ISA/IEC 62443 standards for securing industrial automation and control systems (IACSs). According to the ISA/IEC 62443-2-1 standard, separation of duties includes the following system requirements (SRs):
* SR 2.1: Security management policy
* SR 2.2: Personnel security
* SR 2.3: System development and maintenance
* SR 2.4: Incident response and recovery
* SR 2.5: Compliance and review
Among these SRs, the one that is most related to the example of system development and maintenance is SR
2.3. SR 2.3 requires that the IACS shall provide the capability to ensure that the development and maintenance of the system and its components are performed in a secure manner. This means that the IACS should have a mechanism to control the access and authorization of developers, testers, integrators, and maintainers who work on the system and its components. It also means that the IACS should have a mechanism to verify and validate the quality and security of the system and its components before, during, and after the development and maintenance processes.
Therefore, an example of separation of duties as a part of system development and maintenance is that changes are approved by one party and implemented by another. This ensures that the changes are authorized, documented, and reviewed by someone who is not involved in the implementation. This reduces the risk of introducing errors, vulnerabilities, or malicious code into the system and its components.
References:
ISA/IEC 62443-2-1:2010, Security for industrial automation and control systems - Part 2-1: Establishing an industrial automation and control systems security program1 ISA/IEC 62443 Cybersecurity Fundamentals Specialist Certificate Program2 ISA/IEC 62443 Cybersecurity Library3 Using the ISA/IEC 62443 Standards to Secure Your Control Systems4
NEW QUESTION # 169
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