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| Section | Weight | Objectives |
|---|---|---|
| Security Fundamentals & ISA/IEC 62443 Framework | 20% | - Foundational security requirements - Zones and conduits model - Core security principles: CIA triad, defense-in-depth - Structure and parts of ISA/IEC 62443 standards |
| Industrial Network Security | 30% | - Threats, vulnerabilities and risk assessment - Network segmentation and security architecture - Industrial protocols security |
| Access Control & Identity Management | 15% | - Security policies and procedures - User authentication and authorization - Role-based access control |
| Security Operations & Incident Response | 20% | - Monitoring, maintenance and continuous improvement - Incident handling and response processes - Cybersecurity Management System (CSMS) |
| Industrial Automation and Control Systems (IACS) Overview | 15% | - Cybersecurity importance in industrial environments - Differences between IT and OT security - IACS components, architectures and protocols |
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NEW QUESTION # 187
Which standard is recognized as part of the NIST CSF Informative References?
Answer: A
Explanation:
ISA/IEC 62443 is officially listed as an Informative Reference in the NIST Cybersecurity Framework (CSF).
Informative References provide detailed guidance to help organizations implement the CSF's functions, categories, and subcategories.
"ISA/IEC 62443 is included in the NIST CSF Informative References to help apply risk-based cybersecurity practices to industrial control systems."
- NIST CSF Informative Reference Catalog, Section: PR.IP and ID.RA
ISA/IEC 62443 aligns well with CSF categories such as Protect (PR) and Identify (ID), especially for operational technology environments.
References:
NIST CSF Informative References Catalog
ISA/IEC 62443-2-1 - Alignment with CSF categories
NEW QUESTION # 188
In a defense-in-depth strategy, what is the purpose of role-based access control?
Available Choices (select all choices that are correct)
Answer: A
Explanation:
Role-based access control (RBAC) is a method of restricting access to resources based on the roles of individual users within an organization. RBAC assigns permissions and responsibilities to roles, rather than to individual users, and then assigns users to those roles. This way, users can only perform the actions that are relevant and necessary for their role, and not access or modify any other resources that are beyond their scope of authority. RBAC is one of the security countermeasures that can be implemented in a defense-in-depth strategy, which is a layered approach to protect industrial automation and control systems (IACS) from cyber threats. RBAC can help prevent unauthorized access, misuse, or sabotage of IACS resources, as well as reduce the risk of human error or insider attacks.
References:
ISA/IEC 62443-3-3:2013, Security for industrial automation and control systems - Part 3-3: System security requirements and security levels, Clause 5.3.2.11 ISA/IEC 62443-2-1:2010, Security for industrial automation and control systems - Part 2-1: Establishing an industrial automation and control systems security program, Clause 6.2.2.32 ISA/IEC 62443-4-1:2018, Security for industrial automation and control systems - Part 4-1: Product security development life-cycle requirements, Clause 5.2.3.23 ISA/IEC 62443-4-2:2019, Security for industrial automation and control systems - Part 4-2: Technical security requirements for IACS components, Clause 4.2.3.24
NEW QUESTION # 189
Security Levels (SLs) are broken down into which three types?
Available Choices (select all choices that are correct)
Answer: D
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 # 190
What is the PRIMARY goal of the IACS Security Program (SP) requirements according to ISA/IEC 62443-2-
1?
Answer: C
Explanation:
The primary objective of the IACS Security Program, as defined in ISA/IEC 62443-2-1, is to establish a structured and sustainable approach for the mitigation of cybersecurity risks throughout the IACS lifecycle.
"The purpose of the IACS security program is to manage and mitigate risk associated with cybersecurity threats. It defines policies, procedures, and practices to reduce the likelihood and impact of security incidents."
- ISA/IEC 62443-2-1:2010, Clause 4.1 - Security Program Overview
The standard clearly distinguishes between risk mitigation and risk elimination - the latter being infeasible in industrial environments.
References:
ISA/IEC 62443-2-1:2010 - Clause 4.1
ISA/IEC 62443-2-1 - Security management and governance objectives
NEW QUESTION # 191
Which is a commonly used protocol for managing secure data transmission on the Internet?
Available Choices (select all choices that are correct)
Answer: D
NEW QUESTION # 192
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