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ISA ISA-IEC-62443 Exam Syllabus Topics:

SectionObjectives
Topic 1: Risk and Security Management- Risk assessment principles
- Security lifecycle management in industrial systems
Topic 2: Industrial Network and System Security- Asset identification and protection
- Network segmentation and architecture security
Topic 3: Policies, Procedures, and Governance- Compliance and governance considerations
- Security policies for industrial control systems
Topic 4: Introduction to Industrial Cybersecurity- Overview of IT vs OT security concepts
- Fundamentals of cybersecurity in industrial environments
Topic 5: ISA/IEC 62443 Framework Overview- Key terminology and concepts (zones, conduits, security levels)
- Structure and purpose of IEC 62443 standards

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ISA/IEC 62443 Cybersecurity Fundamentals Specialist Sample Questions (Q100-Q105):

NEW QUESTION # 100
Which of the following is a recommended default rule for IACS firewalls?
Available Choices (select all choices that are correct)

Answer: A


NEW QUESTION # 101
What change was introduced in the second edition (2024) of ISA-62443-2-1 compared to the first edition (2010)?

Answer: A

Explanation:
The 2024 Second Edition of ISA/IEC 62443-2-1 was restructured to eliminate redundancy with ISO/IEC
27001 and to focus on aspects unique to IACS environments.
From ISA/IEC 62443-2-1:2024 Preface:
"The second edition removes duplication with ISO/IEC 27001 and instead focuses on IACS-specific considerations that complement an organization's overall ISMS." It still aligns with the Plan-Do-Check-Act (PDCA) model but no new framework was introduced - rather, clarity and applicability were improved.
Incorrect Options:
A). The PDCA model was retained, not newly introduced.
C). Supply chain security was actually emphasized, not removed.
D). The focus remains on system-wide security management, not just components.
References:
ISA/IEC 62443-2-1:2024 - "Establishing an IACS Security Program" (Second Edition) ISA/IEC 62443 Study Guide


NEW QUESTION # 102
What does Layer 1 of the ISO/OSI protocol stack provide?
Available Choices (select all choices that are correct)

Answer: C


NEW QUESTION # 103
Using the risk matrix below, what is the risk of a medium likelihood event with high consequence?

Answer: D

Explanation:
According to the ISA/IEC 62443 Cybersecurity Fundamentals, the risk matrix is a tool used to assess the risk of a particular event. The risk matrix is divided into three categories: likelihood, consequence, and risk. The likelihood is the probability that an event will occur, the consequence is the impact that the event will have, and the risk is the combination of the two. In this case, the risk of a medium likelihood event with high consequence is a high risk, as shown by the red cell in the matrix. References:
* ISA/IEC 62443 Cybersecurity Fundamentals
* [ISA/IEC 62443 Cybersecurity Certificate Program]
* [Cybersecurity Library]
* [Using the ISA/IEC 62443 Standard to Secure Your Control Systems]


NEW QUESTION # 104
Security Levels (SLs) are broken down into which three types?
Available Choices (select all choices that are correct)

Answer: B

Explanation:
Security Levels (SLs) are a way of expressing the security performance of an industrial automation and control system (IACS) or its components. SLs are broken down into three types: target, capability, and achieved1.
* Target SL is the level of security performance that is required for a system or component to protect against a specific threat scenario. The target SL is determined by conducting a risk assessment that considers the likelihood and impact of potential security incidents1.
* Capability SL is the level of security performance that a system or component can provide based on its design and implementation. The capability SL is determined by evaluating the security functions and features of the system or component against a set of security requirements1.
* Achieved SL is the level of security performance that a system or component actually provides in its operational environment. The achieved SL is determined by verifying that the system or component is properly installed, configured, maintained, and monitored1.
References: ISA/IEC 62443 Standards to Secure Your Industrial Control System, page 3-4.


NEW QUESTION # 105
......

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