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| Section | Objectives |
|---|---|
| Monitoring and Improving the CSMS | - Security lifecycle management - Continuous monitoring of IACS cybersecurity - Incident detection and response |
| How Cyberattacks Happen | - Case studies of industrial cyber incidents - Cyber threats and attack vectors - Vulnerabilities in industrial systems |
| Addressing Risk with Security Policy, Organization, and Awareness | - Organizational security roles and responsibilities - Security policies and procedures - Security awareness and training |
| Understanding the Current Industrial Security Environment | - Security challenges in OT environments - Convergence of IT and OT - Current state of industrial control systems security |
| Risk Analysis | - Risk and vulnerability analysis techniques - Risk management fundamentals - Cybersecurity risk assessment concepts |
| Creating A Security Program | - Defining information security policy - Developing a long-term security program - Security management organization |
| Addressing Risk with Implementation Measures | - Zones and conduits model - Industrial network architecture and segmentation - Access control principles - Defense-in-depth strategy |
| Validating or Verifying the Security of Systems | - Auditing and compliance - Continuous improvement of security measures - Security validation and verification techniques |
| Addressing Risk with Selected Security Counter Measures | - Anti-virus and endpoint protection - Patch management - Virtual Private Networks (VPNs) - Firewalls and network security devices |
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NEW QUESTION # 64
Which statement is TRUE reqardinq application of patches in an IACS environment?
Available Choices (select all choices that are correct)
Answer: D
Explanation:
Patches are software updates that fix bugs, vulnerabilities, or improve performance or functionality. Patches are important for maintaining the security and reliability of an IACS environment, but they also pose some challenges and risks. Applying patches in an IACS environment is not as simple as in an IT environment, because patches may affect the availability, integrity, or safety of the IACS. Therefore, patches should not be applied blindly or automatically, but based on the organization's risk assessment. The risk assessment should consider the following factors: 1 The severity and likelihood of the vulnerability that the patch addresses The impact of the patch on the IACS functionality and performance The compatibility of the patch with the IACS components and configuration The availability of a backup or recovery plan in case the patch fails or causes problems The testing and validation of the patch before applying it to the production system The communication and coordination with the stakeholders involved in the patching process The documentation and auditing of the patching activities and results References: ISA TR62443-2-3 - Security for industrial automation and control systems, Part 2-3: Patch management in the IACS environment
NEW QUESTION # 65
Which is a commonly used protocol for managing secure data transmission on the Internet?
Available Choices (select all choices that are correct)
Answer: C
NEW QUESTION # 66
In a defense-in-depth strategy, what is the purpose of role-based access control?
Available Choices (select all choices that are correct)
Answer: C
Explanation:
Role-based access control (RBAC) is a method of restricting access to resources based on the roles of individual users within an organization. RBAC assigns permissions and responsibilities to roles, rather than to individual users, and then assigns users to those roles. This way, users can only perform the actions that are relevant and necessary for their role, and not access or modify any other resources that are beyond their scope of authority. RBAC is one of the security countermeasures that can be implemented in a defense-in-depth strategy, which is a layered approach to protect industrial automation and control systems (IACS) from cyber threats. RBAC can help prevent unauthorized access, misuse, or sabotage of IACS resources, as well as reduce the risk of human error or insider attacks.
References:
* ISA/IEC 62443-3-3:2013, Security for industrial automation and control systems - Part 3-3: System security requirements and security levels, Clause 5.3.2.11
* ISA/IEC 62443-2-1:2010, Security for industrial automation and control systems - Part 2-1: Establishing an industrial automation and control systems security program, Clause 6.2.2.32
* ISA/IEC 62443-4-1:2018, Security for industrial automation and control systems - Part 4-1: Product security development life-cycle requirements, Clause 5.2.3.23
* ISA/IEC 62443-4-2:2019, Security for industrial automation and control systems - Part 4-2: Technical security requirements for IACS components, Clause 4.2.3.24
NEW QUESTION # 67
Which is the implementation of PROFIBUS over Ethernet for non-safetv-related communications?
Available Choices (select all choices that are correct)
Answer: B
NEW QUESTION # 68
Which of the following can be employed as a barrier device in a segmented network?
Available Choices (select all choices that are correct)
Answer: B
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 # 69
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