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| Section | Weight | Objectives |
|---|---|---|
| Access Control & Identity Management | 15% | - Security policies and procedures - Role-based access control - User authentication and authorization |
| Security Operations & Incident Response | 20% | - Cybersecurity Management System (CSMS) - Monitoring, maintenance and continuous improvement - Incident handling and response processes |
| Industrial Automation and Control Systems (IACS) Overview | 15% | - IACS components, architectures and protocols - Cybersecurity importance in industrial environments - Differences between IT and OT security |
| Security Fundamentals & ISA/IEC 62443 Framework | 20% | - Core security principles: CIA triad, defense-in-depth - Structure and parts of ISA/IEC 62443 standards - Foundational security requirements - Zones and conduits model |
| Industrial Network Security | 30% | - Network segmentation and security architecture - Threats, vulnerabilities and risk assessment - Industrial protocols security |
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NEW QUESTION # 102
How many security levels are in the ISASecure certification program?
Available Choices (select all choices that are correct)
Answer: A
Explanation:
The ISASecure certification program, aligned with the ISA/IEC 62443 standards, defines three distinct security levels that categorize the robustness of industrial control systems against known cybersecurity threats. These levels are designed to provide a scalable approach to securing industrial automation and control systems, with each level offering a higher degree of security. The levels are typically identified as SL1 (Security Level 1), SL2 (Security Level 2), and SL3 (Security Level 3), each addressing increasingly stringent security capabilities and resilience against cyber attacks.
NEW QUESTION # 103
What is one reason why IACS systems are highly vulnerable to attack?
Answer: A
Explanation:
Many Industrial Automation and Control Systems (IACS) are vulnerable because they run legacy software and are rarely patched, due to operational constraints like uptime requirements and fear of system disruption.
"IACS systems are often vulnerable due to the presence of legacy components, limited patching, and prolonged system lifespans without updates."
- ISA/IEC 62443-2-1:2010, Clause 4.4.3 - Patch Management
They are not always isolated (due to remote access, IIoT, etc.), and do not regularly implement the latest updates like IT systems.
References:
ISA/IEC 62443-2-1:2010 - Patch Management
ISA/IEC 62443-2-3:2015 - Patch Assessment and Deployment Challenges
NEW QUESTION # 104
Which is the BEST deployment system for malicious code protection?
Available Choices (select all choices that are correct)
Answer: B
Explanation:
Application whitelisting (AWL) is a technique that allows only authorized applications to run on a system, and blocks any unauthorized or malicious code from executing. AWL is one of the most effective methods for preventing malware infections and reducing the attack surface of a system. AWL can be implemented at different levels, such as the operating system, the network, or the application itself. AWL is especially useful forindustrial automation and control systems (IACS), which often run on legacy or proprietary platforms that are not compatible with traditional antivirus software or other security solutions. AWL can also help protect IACS from zero-day attacks, which exploit unknown vulnerabilities that have not been patched or detected by security vendors. AWL is recommended by the ISA/IEC 62443 standards as a key component of malicious code protection for IACS. According to the standards, AWL should be applied to all IACS components that support it, and should be configured and maintained according to the security policies and procedures of the organization. AWL should also be complemented by other security measures, such as network segmentation, zones and conduits, and patch management, to provide a defense-in-depth approach to IACS security. References:
* ISA/IEC 62443-3-3:2013, System security requirements and security levels, Section 5.2.3.41
* ISA/IEC 62443-2-1:2010, Establishing an industrial automation and control systems security program, Section 4.3.3.6.42
* ISA/IEC 62443-4-2:2019, Technical security requirements for IACS components, Section 4.2.3.43
* ISA/IEC 62443-3-2:2020, Security risk assessment for system design, Section 7.3.3.44
* ISA/IEC 62443-4-1:2018, Product development requirements, Section 5.2.3.45
NEW QUESTION # 105
As related to technical security requirements for IACS components, what does CCSC stand for?
Answer: C
Explanation:
CCSC stands for "Common Component Security Criteria." In the ISA/IEC 62443 series, specifically in Part 4-
2, CCSC refers to a harmonized set of security criteria applicable to individual components within an IACS, such as embedded devices, network devices, host devices, and software applications. These criteria are used to ensure that each component meets a consistent baseline for cybersecurity, supporting overall system security.
Reference: ISA/IEC 62443-4-2:2019, Section 4.1 (Definition of CCSC); Glossary.
NEW QUESTION # 106
What is the name of the protocol that implements serial Modbus over Ethernet?
Available Choices (select all choices that are correct)
Answer: B
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 # 107
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