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| Section | Weight | Objectives |
|---|---|---|
| Security Operations & Incident Response | 20% | - Cybersecurity Management System (CSMS) - Incident handling and response processes - Monitoring, maintenance and continuous improvement |
| Access Control & Identity Management | 15% | - User authentication and authorization - Security policies and procedures - Role-based access control |
| Industrial Network Security | 30% | - Network segmentation and security architecture - Threats, vulnerabilities and risk assessment - Industrial protocols security |
| Industrial Automation and Control Systems (IACS) Overview | 15% | - Differences between IT and OT security - Cybersecurity importance in industrial environments - IACS components, architectures and protocols |
| Security Fundamentals & ISA/IEC 62443 Framework | 20% | - Core security principles: CIA triad, defense-in-depth - Structure and parts of ISA/IEC 62443 standards - Zones and conduits model - Foundational security requirements |
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NEW QUESTION # 151
What is one reason why IACS systems are highly vulnerable to attack?
Answer: C
Explanation:
ISA/IEC 62443 highlights that many IACS environments operate with long lifecycles and strict availability requirements, which often results in delayed or infrequent patching.
Step 1: Legacy systems and uptime constraints
IACS components may run for decades without replacement. Applying patches can introduce operational and safety risks, so updates are often postponed.
Step 2: Accumulated vulnerabilities
Unpatched systems accumulate known vulnerabilities that attackers can exploit using publicly available tools.
Step 3: Why other options are incorrect
IACS systems are no longer isolated. They do require patches, and they rarely run the latest updates.
Therefore, unpatched software is a major vulnerability factor.
NEW QUESTION # 152
What is the name of the protocol that implements serial Modbus over Ethernet?
Available Choices (select all choices that are correct)
Answer: D
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 # 153
Which of the following refers to internal rules that govern how an organization protects critical system
resources?
Available Choices (select all choices that are correct)
Answer: A
NEW QUESTION # 154
Which is a reason for
and physical security regulations meeting a mixed resistance?
Available Choices (select all choices that are correct)
Answer: D
NEW QUESTION # 155
Which of the following is an industry sector-specific standard?
Available Choices (select all choices that are correct)
Answer: B
Explanation:
API 1164 is an industry sector-specific standard that provides guidance on the cybersecurity of pipeline supervisory control and data acquisition (SCADA) systems. API stands for American Petroleum Institute, which is the largest U.S. trade association for the oil and natural gas industry. API 1164 was first published in
2004 and revised in 2009 and 2021. The latest version of the standard aligns with the ISA/IEC 62443 series of standards and incorporates the concepts of security levels, zones, and conduits. API 1164 covers the security lifecycle of pipeline SCADA systems, from risk assessment and policy development to implementation and maintenance. The standard also defines roles and responsibilities, security requirements, security controls, and security assessment methods for pipeline SCADA systems.
References:
API 1164: Pipeline SCADA Security, Fourth Edition, September 2021
ISA/IEC 62443 Cybersecurity Fundamentals Specialist Study Guide, Section 2.2.2, Industry Sector-Specific Standards ISA/IEC 62443 Cybersecurity Fundamentals Specialist Exam Specification, Section 2.2.2, Industry Sector- Specific Standards
NEW QUESTION # 156
......
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