PRACTICE ISA-IEC-62443 QUESTIONS & ISA-IEC-62443 PREPARATION

Practice ISA-IEC-62443 Questions & ISA-IEC-62443 Preparation

Practice ISA-IEC-62443 Questions & ISA-IEC-62443 Preparation

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Tags: Practice ISA-IEC-62443 Questions, ISA-IEC-62443 Preparation, ISA-IEC-62443 Standard Answers, Clearer ISA-IEC-62443 Explanation, ISA-IEC-62443 Study Reference

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ISA-IEC-62443 Preparation, ISA-IEC-62443 Standard Answers

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ISA/IEC 62443 Cybersecurity Fundamentals Specialist Sample Questions (Q47-Q52):

NEW QUESTION # 47
Which analysis method is MOST frequently used as an input to a security risk assessment?
Available Choices (select all choices that are correct)

  • A. Job Safety Analysis(JSA)
  • B. Failure Mode and Effects Analysis
  • C. Process Hazard Analysis (PHA)
  • D. System Safety Analysis(SSA)

Answer: C


NEW QUESTION # 48
Authorization (user accounts) must be granted based on which of the following?
Available Choices (select all choices that are correct)

  • A. Specific roles
  • B. Individual preferences
  • C. Common needs for large groups
  • D. System complexity

Answer: A


NEW QUESTION # 49
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 developing into a network of air-gapped systems
  • C. IACS using equipment designed for measurement and control
  • D. IACS becoming integrated with business and enterprise systems

Answer: D

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 # 50
Which factor drives the selection of countermeasures?
Available Choices (select all choices that are correct)

  • A. Security levels
  • B. System design
  • C. Output from a risk assessment
  • D. Foundational requirements

Answer: C


NEW QUESTION # 51
What are the two sublayers of Layer 2?
Available Choices (select all choices that are correct)

  • A. OPC and DCOM
  • B. VLAN and VPN
  • C. HIDS and NIDS
  • D. LLC and MAC

Answer: D

Explanation:
Layer 2 of the OSI model is the data link layer, which is responsible for transferring data frames between nodes on a network segment. The data link layer is divided into two sublayers: logical link control (LLC) and media access control (MAC). The LLC sublayer deals with issues common to both dedicated and broadcast links, such as framing, flow control, and error control. The MAC sublayer deals with issues specific to broadcast links, such as how to access the shared medium and avoid collisions. The LLC and MAC sublayers are not related to the ISA/IEC 62443 cybersecurity standards, which focus on the security of industrial automation and control systems (IACS). References:https://www.baeldung.com/cs/data-link-sub-layers
https://bing.com/search?q=Layer+2+sublayers


NEW QUESTION # 52
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