Certification ISA ISA-IEC-62443 Training - ISA-IEC-62443 Test Questions

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ISA/IEC 62443 Cybersecurity Fundamentals Specialist Sample Questions (Q23-Q28):

NEW QUESTION # 23
Which of the following ISA-99 (IEC 62443) Reference Model levels is named correctly?
Available Choices (select all choices that are correct)

A. Level 4: Process
B. Level 2: Quality Control
C. Level 1: Supervisory Control
D. Level 3: Operations Management

Answer: D

NEW QUESTION # 24
Which is the BEST deployment system for malicious code protection?
Available Choices (select all choices that are correct)

A. Network segmentation
B. Zones and conduits
C. IACS protocol converters
D. Application whitelistinq (AWL) OD.

Answer: B

NEW QUESTION # 25
What is defined as the hardware and software components of an IACS?
Available Choices (select all choices that are correct)

A. Control system
B. Electronic security
C. Cybersecuritv
D. COTS software and hardware

Answer: A

Explanation:
According to the ISA/IEC 62443-1-1 standard, an industrial automation and control system (IACS) is defined as a collection of personnel, hardware, and software that can affect or influence the safe, secure, and reliable operation of an industrial process. The hardware and software components of an IACS include the control system, which is the combination of control devices, networks, and applications that perform the control functions for the industrial process. The control system may consist of various types of devices, such as distributed control systems (DCS), programmable logic controllers (PLC), supervisory control and data acquisition (SCADA) systems, human-machine interfaces (HMI), remote terminal units (RTU), intelligent electronic devices (IED), sensors, actuators, and other field devices. The control system may also use commercial off-the-shelf (COTS) software and hardware, such as operating systems, databases, firewalls, routers, switches, and servers, to support the control functions and communication.
References:
* ISA/IEC 62443-1-1:2009, Security for industrial automation and control systems - Part 1-1:
Terminology, concepts and models, Clause 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 3.2.12

NEW QUESTION # 26
Which of the following is the BEST example of detection-in-depth best practices?
Available Choices (select all choices that are correct)

A. Role-based access control and unusual data transfer patterns
B. IDS sensors deployed within multiple zones in the production environment
C. Firewalls and unexpected protocols being used
D. Role-based access control and VPNs

Answer: B

Explanation:
The best practice for detection-in-depth according to ISA/IEC 62443 involves layering different types of security controls that operate effectively under multiple scenarios and across various zones within an environment. IDS (Intrusion Detection Systems) sensors deployed across multiple zones within a production environment exemplify this strategy. By positioning sensors in various strategic locations, organizations can monitor for anomalous activities and potential threats throughout their network, thus enhancing their ability to detect and respond to incidents before they escalate. This deployment aligns with the ISA/IEC 62443 focus on comprehensive coverage and redundancy in cybersecurity mechanisms, contrasting with relying solely on perimeter defenses or single-point security solutions.

NEW QUESTION # 27
Which is the PRIMARY objective when defining a security zone?
Available Choices (select all choices that are correct)

A. All assets in the zone must be at the same level in the Purdue model.
B. All assets in the zone must be physically located in the same area.
C. All assets in the zone must share the same security requirements.
D. All assets in the zone must be from the same vendor.

Answer: C

NEW QUESTION # 28
......

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Certification ISA ISA-IEC-62443 Training - ISA-IEC-62443 Test Questions

Good News! 100% Success Rate On ISA ISA-IEC-62443 Exam Questions [2025]

ISA/IEC 62443 Cybersecurity Fundamentals Specialist Sample Questions (Q23-Q28):

Certification ISA-IEC-62443 Training – The Best Test Questions for your ISA ISA-IEC-62443

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