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ISA/IEC 62443 Cybersecurity Fundamentals Specialist Sample Questions (Q144-Q149):

NEW QUESTION # 144
Which of the following BEST describes a control system?

A. Actions to prevent loss of revenue
B. Hardware and software components of an IACS
C. Unauthorized modifications to data
D. Measures taken to protect against unauthorized access

Answer: B

Explanation:
A control system, in the context of ISA/IEC 62443, refers to the hardware and software components of an Industrial Automation and Control System (IACS). This includes PLCs, SCADA, DCS, HMIs, sensors, actuators, and supporting networks and applications used to monitor and control physical processes.
Reference: ISA/IEC 62443-1-1:2007, Section 3.2.1 (Definition of control system and IACS).

NEW QUESTION # 145
A manufacturing plant is developing a cybersecurity plan for its IACS that must evolve as new threats emerge and system changes occur. Which document should serve as the foundation for this evolving security approach?

A. Security Protection Scheme (SPS)
B. Corporate KPIs unrelated to IACS
C. Security Program (SP) portfolio
D. IEC 62443-2-2 only

Answer: C

Explanation:
The Security Program (SP) portfolio, described in IEC 62443-2-1, is the cornerstone for an organization's cybersecurity management for Industrial Automation and Control Systems (IACS). It provides a structured, documented, and dynamic security management approach that evolves as system configurations change and new threats emerge.
IEC 62443-2-1, Clause 4.1.3 states:
"The organization shall develop and maintain a cyber security management system (CSMS) as part of its overall security program. The CSMS provides a systematic approach to defining, implementing, and maintaining policies, procedures, and practices necessary to protect IACS assets." Furthermore, Clause 4.2 emphasizes:
"The security program shall be continually updated based on changes in the threat environment, vulnerabilities, or changes to the organization's IACS assets or systems." The SP portfolio includes the Cybersecurity Management System (CSMS), policies, procedures, roles, responsibilities, and improvement mechanisms. This allows continuous adaptation to evolving cybersecurity requirements.
Incorrect Options:
A). IEC 62443-2-2 only - While it focuses on implementation of security capabilities for asset owners, it does not represent the full foundation for a dynamic and evolving security plan.
C). Corporate KPIs unrelated to IACS - Irrelevant to cybersecurity planning for IACS.
D). Security Protection Scheme (SPS) - Related to zone and conduit security design (IEC 62443-3-2), but not the strategic, evolving program foundation.
References:
ISA/IEC 62443-2-1:2010 - "Security for Industrial Automation and Control Systems - Establishing an IACS Security Program" Official ISA/IEC 62443 Study Guide

NEW QUESTION # 146
What is the primary purpose of the NIST Cybersecurity Framework (CSF)?

A. To enhance the resilience of critical infrastructure
B. To provide a certification program for organizations
C. To replace existing cybersecurity standards
D. To create new cybersecurity technologies

Answer: A

Explanation:
The NIST Cybersecurity Framework (CSF) was developed to enhance the security and resilience of critical infrastructure in the United States by providing a flexible, repeatable, and cost-effective risk-based approach to managing cybersecurity risk. It is designed to complement, not replace, existing standards and guidelines, and is intended for voluntary adoption by critical infrastructure organizations.
Reference: ISA/IEC 62443-1-1:2007, Section 4.2.7; NIST CSF Framework Core, "Purpose and Scope" (NIST CSF 1.1, Section 1.0).

NEW QUESTION # 147
What is the primary focus of Part 3-2 in the ISA/IEC 62443 series?

A. Cybersecurity risk assessment and system design
B. Security technologies for IACS
C. Secure product development lifecycle requirements
D. Technical security requirements for IACS components

Answer: A

Explanation:
ISA/IEC 62443-3-2 focuses on the cybersecurity risk assessment process, including:
Identifying zones and conduits
Determining the Target Security Levels (SL-T)
Designing the IACS architecture based on risk-based zoning
"Part 3-2 defines a process for conducting cybersecurity risk assessments and designing system architectures that incorporate zones and conduits based on those risks."
- ISA/IEC 62443-3-2:2020, Clause 5 - Risk Assessment Process
This part bridges the gap between risk evaluation and technical implementation.
References:
ISA/IEC 62443-3-2:2020 - Clauses 5.2 to 5.5
ISA/IEC 62443-1-1 - Framework overview

NEW QUESTION # 148
Which of the following is the underlying protocol for Ethernet/IP?
Available Choices (select all choices that are correct)

A. Common Industrial Protocol
B. Object Linking and Embedding (OLE) for Process Control
C. Highway Addressable Remote Transducer (HART)
D. Building Automation and Control Network (BACnet)

Answer: A

Explanation:
Ethernet/IP is an industrial network protocol that adapts the Common Industrial Protocol (CIP) to standard Ethernet. CIP is an object-oriented protocol that provides a unified communication architecture for various industrial automation applications, such as control, safety, security, energy, synchronization and motion, information and network management. CIP defines a set of messages and services for interacting with devices and data on the network, as well as a set of device profiles for consistent implementation of automation functions across different products. Ethernet/IP uses the transport and control protocols of standard Ethernet, such as TCP/IP and IEEE 802.3, to define the features and functions for its lower layers. Ethernet/IP also uses UDP to transport I/O messages and supports various network topologies, such as star, linear, ring and wireless. Ethernet/IP is one of the leading industrial protocols in the United States and is widely used in a range of industries, such as factory, hybrid and process. Ethernet/IP is managed by ODVA, Inc., a global trade and standards development organization. References:
* EtherNet/IP - Wikipedia
* EtherNet/IP | ODVA Technologies | Industrial Automation

NEW QUESTION # 149
......

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