PDF ISA-IEC-62443 FREE & ISA-IEC-62443 RELIABLE TEST TIPS

Pdf ISA-IEC-62443 Free & ISA-IEC-62443 Reliable Test Tips

Pdf ISA-IEC-62443 Free & ISA-IEC-62443 Reliable Test Tips

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ISA/IEC 62443 Cybersecurity Fundamentals Specialist Sample Questions (Q58-Q63):

NEW QUESTION # 58
Which is a role of the application layer?
Available Choices (select all choices that are correct)

  • A. Includes user applications specific to network applications such as email, file transfer, and reading data registers in a PLC
  • B. Includes protocols specific to network applications such as email, file transfer, and reading data registers in a PLC
  • C. Provides the mechanism for opening, closing, and managing a session between end-user application processes
  • D. Delivers and formats information, possibly with encryption and security

Answer: B,D

Explanation:
The application layer is the topmost layer of the OSI model, which provides the interface between the user and the network. It includes protocols specific to network applications such as email, file transfer, and reading data registers in a PLC. These protocols deliver and format information, possibly with encryption and security, to ensure reliable and meaningful communication between different applications. The application layer does not include user applications, which are separate from the network protocols. The application layer also does not provide the mechanism for opening, closing, and managing a session between end-user application processes, which is the function of the session layer. References:
* ISA/IEC 62443 Cybersecurity Fundamentals Specialist Study Guide, page 181
* Using the ISA/IEC 62443 Standards to Secure Your Control System, page 82 The application layer in network protocols, such as in the OSI model or the TCP/IP protocol suite, is primarily responsible for providing services directly to user applications. This layer is involved in:
* Option A: Including protocols specific to network applications such as email, file transfer, and industrial protocols like reading data registers in a Programmable Logic Controller (PLC). This is a core function of the application layer as it facilitates specific high-level networking capabilities.
* Option D: Delivering and formatting information, which can include encryption and ensuring the security of data as it is transmitted across the network. This includes protocols like HTTP for web browsing which can encrypt data via HTTPS, SMTP for secure email transmission, and FTP for secure file transfer.


NEW QUESTION # 59
Which organization manages the ISASecure conformance certification program?
Available Choices (select all choices that are correct)

  • A. Security Compliance Institute
  • B. Automation Federation
  • C. National Institute of Standards and Technology
  • D. American Society for Industrial Security

Answer: A

Explanation:
The ISASecure conformance certification program is managed by the Security Compliance Institute (ISCI), a non-profit organization established in 2007 by a group of industry stakeholders, including end users, suppliers, and integrators. ISCI's mission is to provide a common industry-accepted set of device and process requirements that drive device security, simplifying procurement for asset owners and device assurance for equipment vendors12. References: 1: ISASecure - IEC 62443 Conformance Certification - Official Site 2:
Certifications - ISASecure


NEW QUESTION # 60
What is the name of the protocol that implements serial Modbus over Ethernet?
Available Choices (select all choices that are correct)

  • A. MODBUS/CIP
  • B. MODBUS/Ethernet
  • C. MODBUS/TCP
  • D. MODBUS/Plus

Answer: C

Explanation:
MODBUS/TCP is the name of the protocol that implements serial Modbus over Ethernet. MODBUS/TCP is a variant of the Modbus protocol that uses the Transmission Control Protocol (TCP) as the transport layer to encapsulate Modbus messages and send them over Ethernet networks. MODBUS/TCP preserves the Modbus application layer and data model, which means that serial Modbus devices can communicate with MODBUS/TCP devices through a gateway or a converter. MODBUS/TCP is widely used in industrial automation and control systems, as it offers high performance, interoperability, and compatibility with existing Modbus devices. References: ISA/IEC 62443 Cybersecurity Fundamentals Specialist Study Guide, Section
3.1.21; MODBUS Application Protocol Specification V1.1b3, Section 1.1


NEW QUESTION # 61
Which statement is TRUE regarding Intrusion Detection Systems (IDS)?
Available Choices (select all choices that are correct)

  • A. Modern IDS recognize IACS devices by default.
  • B. They are very inexpensive to design and deploy.
  • C. They are effective against known vulnerabilities.
  • D. They require a small amount of care and feeding

Answer: A


NEW QUESTION # 62
Which of the ISA 62443 standards focuses on the process of developing secure products?
Available Choices (select all choices that are correct)

  • A. 62443-3-3
  • B. 62443-1-1
  • C. 62443-4-1
  • D. 62443-3-2

Answer: C

Explanation:
The ISA/IEC 62443 series of standards is divided into four main parts, each covering a different aspect of industrial automation and control systems (IACS) cybersecurity1:
* Part 1: Terminology, Concepts, and Models
* Part 2: Policies and Procedures
* Part 3: System Requirements
* Part 4: Component Requirements The part 4 of the series focuses on the requirements for the secure development and maintenance of products that are used in IACS, such as controllers, sensors, actuators, network devices, software applications, and cloud services. The part 4 consists of two standards1:


NEW QUESTION # 63
......

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