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A company needs to create a standardized interface for exchanging real-time plant data between heterogeneous control devices while maintaining a structured organization of data elements such as folders, classes, and methods. Which feature of OPC supports this requirement?
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C
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Explanation
OPC Unified Architecture (OPC UA) introduces a browsable namespace that supports hierarchical organization of data including folders, classes, methods, and object types. This is critical for structured access to real-time and historical data across heterogeneous control systems. “OPC UA provides a flexible, secure, and platform-independent mechanism for exchanging information. Its browsable namespace allows structured navigation of nodes, types, and attributes in a hierarchical format.” — OPC UA Specification, Part 3 – Address Space Model This is a key improvement over OPC Classic, which was tightly coupled to DCOM and lacked standardized structures across systems. [References:, OPC UA Specification – Part 3: Address Space Model, ISA/IEC 62443-3-3 – SR 3.1 RE: Secure data exchange mechanisms, ===========, , , , ]
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What is a key feature of the NIS2 Directive?
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C
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Explanation
The NIS2 Directive, an update to the European Union’s cybersecurity directive, introduces several new requirements, including the establishment of a cyber crisis management framework at both national and EU levels. This is designed to coordinate effective responses to major cybersecurity incidents and crises. NIS2 goes beyond mandating compliance or focusing only on physical security and emphasizes collaboration between the public and private sectors. [Reference: NIS2 Directive (Directive (EU) 2022/2555), Articles 9–11, and official ENISA documentation., , , ]
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Which of the following is an element of security policy, organization, and awareness?
Available Choices (select all choices that are correct)
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B
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Explanation
According to the ISA/IEC 62443-2-1 standard, security policy, organization, and awareness is one of the four foundational requirements for an IACS security management system. It defines the “policies, procedures, and organizational structure necessary to support the security program” 1. One of the elements of this requirement is staff training and security awareness, which involves “providing appropriate security education and training to all personnel who have access to or are responsible for IACS components” 1. This element aims to ensure that the staff are aware of the security risks, policies, and procedures, and are able to perform their roles and responsibilities in a secure manner. Staff training and security awareness can include topics such as security principles, threats and vulnerabilities, incident response, password management, physical security, and social engineering 2. References: ISA/IEC 62443 Series of Standards - ISA Security of Industrial Automation and Control Systems - ISAGCA |
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Find answers to the most common questions about the ISA ISA-IEC-62443 exam, including what it is, how to prepare, and how it can boost your career.
The ISA ISA-IEC-62443 certification is a globally-acknowledged credential that is awarded to candidates who pass this certification exam by obtaining the required passing score. This credential attests and validates the candidates' knowledge and hands-on skills in domains covered in the ISA ISA-IEC-62443 certification syllabus. The ISA ISA-IEC-62443 certified professionals with their verified proficiency and expertise are trusted and welcomed by hiring managers all over the world to perform leading roles in organizations. The success in ISA ISA-IEC-62443 certification exam can be ensured only with a combination of clear knowledge on all exam domains and securing the required practical training. Like any other credential, ISA ISA-IEC-62443 certification may require periodic renewal to stay current with new innovations in the concerned domains.