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| Section | Objectives |
|---|---|
| Topic 1: Policies, Procedures, and Governance | - Security policies for industrial control systems - Compliance and governance considerations |
| Topic 2: Industrial Network and System Security | - Network segmentation and architecture security - Asset identification and protection |
| Topic 3: Introduction to Industrial Cybersecurity | - Overview of IT vs OT security concepts - Fundamentals of cybersecurity in industrial environments |
| Topic 4: Risk and Security Management | - Security lifecycle management in industrial systems - Risk assessment principles |
| Topic 5: ISA/IEC 62443 Framework Overview | - Structure and purpose of IEC 62443 standards - Key terminology and concepts (zones, conduits, security levels) |
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NEW QUESTION # 35
Which is a role of the application layer?
Available Choices (select all choices that are correct)
Answer: A,B
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 # 36
Which type of cryptographic algorithms requires more than one key?
Available Choices (select all choices that are correct)
Answer: A
NEW QUESTION # 37
In an IACS system, a typical security conduit consists of which of the following assets?
Answer: D
Explanation:
In ISA/IEC 62443, a conduit is a logical or physical communication path used to connect security zones and is typically composed of:
Routers and switches
Network cabling (wiring)
Firewalls and network management devices
"A conduit is used to implement the flow of data between zones, and includes the communication hardware and associated logical controls such as firewalls, switches, and routers."
- ISA/IEC 62443-1-1:2007, Clause 3.3.44 - Conduit
This differs from physical electrical conduits, which are not a cybersecurity concept.
References:
ISA/IEC 62443-1-1:2007 - Clause 3.3.44
ISA/IEC 62443-3-2 - Zone and Conduit Model (Clause 5.3)
NEW QUESTION # 38
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)
Answer: A
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. References https://www.cisco.com/c/en/us/td/docs/solutions
/Verticals/IoT_Security_Lab/IEC62443_WP.pdf
https://www.cisco.com/c/en/us/td/docs/solutions/Verticals/IoT_Security_Lab/IEC62443_WP.pdf
NEW QUESTION # 39
What is the purpose of ISO/IEC 15408 (Common Criteria)?
Available Choices (select all choices that are correct)
Answer: A
NEW QUESTION # 40
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