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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Industrial Network Security | 30% | - Industrial protocols security - Threats, vulnerabilities and risk assessment - Network segmentation and security architecture |
| Topic 2: Security Fundamentals & ISA/IEC 62443 Framework | 20% | - Structure and parts of ISA/IEC 62443 standards - Foundational security requirements - Core security principles: CIA triad, defense-in-depth - Zones and conduits model |
| Topic 3: Industrial Automation and Control Systems (IACS) Overview | 15% | - Cybersecurity importance in industrial environments - Differences between IT and OT security - IACS components, architectures and protocols |
| Topic 4: Security Operations & Incident Response | 20% | - Cybersecurity Management System (CSMS) - Incident handling and response processes - Monitoring, maintenance and continuous improvement |
| Topic 5: Access Control & Identity Management | 15% | - Security policies and procedures - Role-based access control - User authentication and authorization |
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NEW QUESTION # 145
What do packet filter firewalls examine?
Available Choices (select all choices that are correct)
Answer: C
NEW QUESTION # 146
Which layer deals with data format conversion and encryption?
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 # 147
What is Modbus?
Answer: A
Explanation:
Modbus is a serial communications protocol originally published by Modicon (now Schneider Electric) in
1979 for use with its programmable logic controllers (PLCs). It has become a de facto standard protocol for communication between industrial electronic devices. Modbus allows devices, such as sensors and instruments, to communicate their data to a controller or computer. The protocol can operate over serial lines (RS-232, RS-485) and has been extended for TCP/IP networks (Modbus TCP). It is not a programming language, network security standard, or a type of industrial machinery. Its simplicity and open nature have made it widespread in industrial environments, but it has minimal built-in security, which is a significant consideration in cybersecurity for industrial control systems.
Reference: ISA/IEC 62443-3-3:2013, Section 4.2.3, and ISA-62443-1-1:2007, Section 3.2.1.
NEW QUESTION # 148
What does Layer 1 of the ISO/OSI protocol stack provide?
Available Choices (select all choices that are correct)
Answer: C
Explanation:
Layer 1 of the ISO/OSI protocol stack is the physical layer, which provides the means of transmitting and receiving raw data bits over a physical medium. It defines the electrical and physical specifications of the data connection, such as the voltage levels, signal timing, cable types, connectors, and pin assignments. It does not perform any data encryption, routing, end-to-end connectivity, framing, error checking, or user applications. These functions are performed by higher layers of the protocol stack, such as the data link layer, the network layer, the transport layer, and the application layer. References: ISO/IEC 7498-1:1994, Section
6.11; ISA/IEC 62443 Cybersecurity Fundamentals Specialist Study Guide, Section 3.1.12
NEW QUESTION # 149
What is OPC?
Available Choices (select all choices that are correct)
Answer: A
Explanation:
OPC stands for Open Platform Communications, and it is a series of standards and specifications for industrial telecommunication based on Object Linking and Embedding (OLE) for process control. It allows the communication of real-time data between devices from different manufacturers using various data transportation technologies, such as Microsoft's OLE, COM, DCOM, .NET, XML, and TCP123. OPC is not a protocolitself, but rather a standardized approach for data connectivity supported by the OPC Foundation3. OPC is widely used in industrial automation and control systems, as well as other industries, to achieve interoperability and integration between different applications and devices3.
A is incorrect, because OPC is not a field bus protocol, but rather a standard for data exchange between devices that may use different field bus protocols, such as Modbus, Profibus, or Ethernet/IP2. C is incorrect, because OPC is not a serial communications protocol, but rather a standard that can use various data transportation technologies, including serial, Ethernet, or wireless2. D is incorrect, because OPC is not a vendor-specific proprietary protocol, but rather an open standard that can be implemented by any vendor or device that supports the OPC specifications3. References: 1: Open Platform Communications - Wikipedia 2: What is OPC Protocol - The Automization 3: What is OPC? - OPC Foundation
NEW QUESTION # 150
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