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[General] Reliable ISA ISA-IEC-62443 Test Prep | ISA-IEC-62443 Dumps Free Download

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【General】 Reliable ISA ISA-IEC-62443 Test Prep | ISA-IEC-62443 Dumps Free Download

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ISA/IEC 62443 Cybersecurity Fundamentals Specialist Sample Questions (Q170-Q175):NEW QUESTION # 170
Which layer deals with data format conversion and encryption?
  • A. Presentation
  • B. Data link
  • C. Application
  • D. Session
Answer: A
Explanation:
The Presentation layer (Layer 6) of the OSI model is responsible for data format conversion (such as character set translation) and encryption/decryption of messages. This layer ensures that data sent from the application layer of one system can be read by the application layer of another, regardless of differences in data representation.
Reference: ISA/IEC 62443-1-1:2007, Section 3.2.5 (OSI Reference Model), Table 3; ISO/IEC 7498-1:1994.

NEW QUESTION # 171
What is one challenge associated with firewalls?
  • A. That they can only filter HTTP traffic
  • B. Need for constant updates
  • C. Deciding how they should be configured
  • D. Difficulty of installation
Answer: C
Explanation:
A significant challenge with firewalls in industrial environments is deciding how they should be configured.
The complexity arises from needing to balance operational requirements (such as process data flow) with security needs (such as blocking unauthorized access). Misconfiguration can lead either to security gaps or to unnecessary operational disruptions. Firewalls can filter many types of traffic (not just HTTP) and while updates are important, configuration is the biggest ongoing challenge.
Reference: ISA/IEC 62443-3-3:2013, Section 4.2.3.3 (Firewalls and configuration management); ISA/IEC
62443-2-1:2009, Section 6.3.2.

NEW QUESTION # 172
Which of the following is a trend that has caused a significant percentage of security vulnerabilities?
Available Choices (select all choices that are correct)
  • A. IACS evolving into a number of closed proprietary systems
  • B. IACS using equipment designed for measurement and control
  • C. IACS becoming integrated with business and enterprise systems
  • D. IACS developing into a network of air-gapped systems
Answer: C
Explanation:
One of the trends that has increased the security risks for industrial automation and control systems (IACS) is the integration of these systems with business and enterprise systems, such asenterprise resource planning (ERP), manufacturing execution systems (MES), and supervisory control and data acquisition (SCADA). This integration exposes the IACS to the same threats and vulnerabilities that affect the business and enterprise systems, such as malware, denial-of-service attacks, unauthorized access, and data theft. Moreover, the integration also creates new attack vectors and pathways for adversaries to compromise the IACS, such as through remote access, wireless networks, or third-party devices. Therefore, the integration of IACS with business and enterprise systems is a trend that has caused a significant percentage of security vulnerabilities. References: ISA/IEC 62443 Standards to Secure Your Industrial Control System, page 1-2.

NEW QUESTION # 173
Within the National Institute of Standards and Technoloqv Cybersecuritv Framework v1.0 (NIST CSF), what is the status of the ISA 62443 standards?
Available Choices (select all choices that are correct)
  • A. They are not used.
  • B. They are under consideration for future use.
  • C. They are used as informative references.
  • D. They are used as normative references.
Answer: C
Explanation:
The NIST CSF is a voluntary framework that provides a set of standards, guidelines, and best practices to help organizations manage cybersecurity risks. The NIST CSF consists of five core functions: Identify, Protect, Detect, Respond, and Recover. Each function is further divided into categories and subcategories that describe specific outcomes and activities. The NIST CSF also provides informative references that link the subcategories to existing standards, guidelines, and practices that can help organizations achieve the desired outcomes. The informative references are not mandatory or exhaustive, but rather serve as examples of possible sources of guidance. The ISA 62443 standards are used as informative references in the NIST CSF v1.0 for several subcategories, especially in the Protect and Detect functions. The ISA 62443 standards are a series of standards that provide a framework for securing industrial automation and control systems (IACS).
The ISA 62443 standards cover various aspects of IACS security, such as terminology, concepts, requirements, policies, procedures, and technical specifications. The ISA 62443 standards are aligned with the NIST CSF in terms of the core functions and the risk-based approach. Therefore, the ISA 62443 standards can provide useful guidance and best practices for organizations that use IACS and want to implement the NIST CSF. References:
* NIST Cybersecurity Framework - Official Site1
* Framework for Improving Critical Infrastructure Cybersecurity - Version 1.02
* ISA/IEC 62443 Standards - Official Site3
* ISA/IEC 62443 Compliance & Scoring | Centraleyes4

NEW QUESTION # 174
What does Foundational Requirement 6 (FR 6) - Timely Response to Events (TRE) require?
  • A. Protect against unauthorized operation
  • B. Control access to information
  • C. Ensure adequate responses to network resource requests
  • D. Notify the proper authority about security violations
Answer: D
Explanation:
Foundational Requirement 6 (FR 6), Timely Response to Events (TRE), as described in ISA/IEC 62443-3-3, requires that the system detect and respond to security-relevant events, including notifying the proper authority or personnel about security violations in a timely manner. This enables rapid incident response, containment, and recovery actions, all of which are critical to minimizing damage.
Reference: ISA/IEC 62443-3-3:2013, Section 4.3.3.6 (FR 6: Timely Response to Events).

NEW QUESTION # 175
......
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