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| Section | Objectives |
|---|---|
| Topic 1: Policies, Procedures, and Governance | - Security policies for industrial control systems - Compliance and governance considerations |
| Topic 2: ISA/IEC 62443 Framework Overview | - Structure and purpose of IEC 62443 standards - Key terminology and concepts (zones, conduits, security levels) |
| Topic 3: Introduction to Industrial Cybersecurity | - Fundamentals of cybersecurity in industrial environments - Overview of IT vs OT security concepts |
| Topic 4: Risk and Security Management | - Risk assessment principles - Security lifecycle management in industrial systems |
| Topic 5: Industrial Network and System Security | - Network segmentation and architecture security - Asset identification and protection |
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NEW QUESTION # 52
How many element groups are in the "Addressing Risk" CSMS category?
Available Choices (select all choices that are correct)
Answer: D
Explanation:
The "Addressing Risk" CSMS category consists of three element groups: Security Policy, Organization and Awareness; Selected Security Countermeasures; and Implementation of Security Program1. These element groups cover the aspects of defining the security objectives, roles and responsibilities, policies and procedures, awareness and training, security countermeasures selection and implementation, and security program execution and maintenance1. The "Addressing Risk" CSMS category aims to reduce the security risk to an acceptable level by applying appropriate security measures to the system under consideration (SuC)
1. References: 1: ISA/IEC 62443-2-1: Security for industrial automation and control systems: Establishing an industrial automation and control systems security program
NEW QUESTION # 53
Which of the following is an example of separation of duties as a part of system development and maintenance?
Available Choices (select all choices that are correct)
Answer: C
Explanation:
Separation of duties is a security principle that aims to prevent fraud, errors, conflicts of interest, or misuse of resources by dividing critical tasks or functions among different people or teams. It is one of the foundational requirements (FRs) of the ISA/IEC 62443 standards for securing industrial automation and control systems (IACSs). According to the ISA/IEC 62443-2-1 standard, separation of duties includes the following system requirements (SRs):
* SR 2.1: Security management policy
* SR 2.2: Personnel security
* SR 2.3: System development and maintenance
* SR 2.4: Incident response and recovery
* SR 2.5: Compliance and review
Among these SRs, the one that is most related to the example of system development and maintenance is SR
2.3. SR 2.3 requires that the IACS shall provide the capability to ensure that the development and maintenance of the system and its components are performed in a secure manner. This means that the IACS should have a mechanism to control the access and authorization of developers, testers, integrators, and maintainers who work on the system and its components. It also means that the IACS should have a mechanism to verify and validate the quality and security of the system and its components before, during, and after the development and maintenance processes.
Therefore, an example of separation of duties as a part of system development and maintenance is that changes are approved by one party and implemented by another. This ensures that the changes are authorized, documented, and reviewed by someone who is not involved in the implementation. This reduces the risk of introducing errors, vulnerabilities, or malicious code into the system and its components.
References:
ISA/IEC 62443-2-1:2010, Security for industrial automation and control systems - Part 2-1: Establishing an industrial automation and control systems security program1 ISA/IEC 62443 Cybersecurity Fundamentals Specialist Certificate Program2 ISA/IEC 62443 Cybersecurity Library3 Using the ISA/IEC 62443 Standards to Secure Your Control Systems4
NEW QUESTION # 54
Which of the following can be employed as a barrier device in a segmented network?
Available Choices (select all choices that are correct)
Answer: C
Explanation:
A router and a VPN can be employed as barrier devices in a segmented network. A barrier device is a device that controls the flow of traffic between different network segments, based on predefined rules and policies1. A router is a device that forwards packets between different networks, based on their IP addresses2. A router can act as a barrier device by applying access control lists (ACLs) or firewall rules to filter or block unwanted or malicious traffic2. A VPN is a technology that creates a secure and encrypted tunnel between different networks, such as a remote site and a corporate network3. A VPN can act as a barrier device by encrypting the traffic and authenticating the users or devices that access the network3. A VPN can also prevent unauthorized access or eavesdropping by outsiders3.
References: LAYERING NETWORK SECURITY - CISA, Router (computing) - Wikipedia, What Is Network Segmentation? - Cisco.
NEW QUESTION # 55
Which is a common pitfall when initiating a CSMS program?
Available Choices (select all choices that are correct)
Answer: C
Explanation:
"A common pitfall is to attempt to initiate a CSMS program without at least a high-level rationale that relates cyber security to the specific organization and its mission." A CSMS program is a Cybersecurity Management System program that follows the IEC 62443 standards for securing industrial control systems (ICS)1. A common pitfall when initiating a CSMS program is D.
Immediate jump into detailed risk assessment. This is because a detailed risk assessment requires a clear definition of the system under consideration (SuC), the allocation of IACS assets to zones and conduits, and the identification of threats, vulnerabilities, and consequences for each zone and conduit2. These steps are part of the assess phase of the CSMS program, which is the first phase of the security program development process2. However, before starting the assess phase, it is important to have the management team's support to ensure the CSMS program will have sufficient financial and organizational resources to implement necessary actions2. Therefore, jumping into detailed risk assessment without having the management buy-in is a common mistake that can jeopardize the success of the CSMS program.
NEW QUESTION # 56
What are the connections between security zones called?
Available Choices (select all choices that are correct)
Answer: A
NEW QUESTION # 57
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