ISA-IEC-62443 EXAM PREPARATION & ISA-IEC-62443 STUDY GUIDE & ISA-IEC-62443 BEST QUESTIONS

ISA-IEC-62443 Exam Preparation & ISA-IEC-62443 Study Guide & ISA-IEC-62443 Best Questions

ISA-IEC-62443 Exam Preparation & ISA-IEC-62443 Study Guide & ISA-IEC-62443 Best Questions

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ISA/IEC 62443 Cybersecurity Fundamentals Specialist Sample Questions (Q83-Q88):

NEW QUESTION # 83
Which of the following provides the overall conceptual basis in the design of an appropriate security program?
Available Choices (select all choices that are correct)

  • A. Zone model
  • B. Asset model
  • C. Reference architecture
  • D. Reference model

Answer: D

Explanation:
The reference model provides the overall conceptual basis in the design of an appropriate security program. It defines the common terminology, concepts, and models that can be used by all stakeholders responsible for IACS security. The reference model describes the general characteristics of IACS, the typical threats and vulnerabilities, the security lifecycle phases, and the security levels. The reference model also introduces the concepts of zones and conduits, which are used to group and isolate assets with similar security requirements and to control the communication between them. Referenceshttps://www.cisco.com/c/en/us/td/docs/solutions/Verticals/IoT_Security_Lab/IEC62443_WP.pd
https://www.cisco.com/c/en/us/td/docs/solutions/Verticals/IoT_Security_Lab/IEC62443_WP.pdf


NEW QUESTION # 84
Multiuser accounts and shared passwords inherently carry which of the followinq risks?
Available Choices (select all choices that are correct)

  • A. Race conditions
  • B. Unauthorized access
  • C. Privilege escalation
  • D. Buffer overflow

Answer: C


NEW QUESTION # 85
What do packet filter firewalls examine?
Available Choices (select all choices that are correct)

  • A. Only the source, destination, and ports in the header of each packet
  • B. The packet structure and sequence
  • C. The relationships between packets in a session
  • D. Every incoming packet up to the application layer

Answer: A

Explanation:
Packet filter firewalls, as defined by ISA/IEC 62443 standards on cybersecurity, primarily examine the source, destination, and ports in the header of each packet. This type of firewall does not inspect the packet content deeply (such as its structure or sequence) or maintain awareness of the relationships between packets in a session. Instead, it operates at a more superficial level, filtering packets based solely on IP addresses and TCP/UDP ports. This approach allows packet filter firewalls to quickly process and either accept or block packets based on these predefined criteria without delving into the complexities of session management or the content of the packets up to the application layer.


NEW QUESTION # 86
What are the three main components of the ISASecure Integrated Threat Analysis (ITA) Program?
Available Choices (select all choices that are correct)

  • A. Software development security assurance, functional security assessment, and communications
    robustness testing
  • B. Communication speed, disaster recovery, and essential security functionality assessment
  • C. Software robustness security testing, functional software assessment assurance, and essential security
    functionality assessment
  • D. Communications robustness testing, functional security assurance, and software robustness
    communications

Answer: A


NEW QUESTION # 87
What are the two sublayers of Layer 2?
Available Choices (select all choices that are correct)

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

Answer: C

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 # 88
......

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