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| Section | Objectives |
|---|---|
| Topic 1: How Cyberattacks Happen | - Cyber threats and attack vectors - Vulnerabilities in industrial systems - Case studies of industrial cyber incidents |
| Topic 2: Addressing Risk with Implementation Measures | - Access control principles - Industrial network architecture and segmentation - Defense-in-depth strategy - Zones and conduits model |
| Topic 3: Creating A Security Program | - Defining information security policy - Developing a long-term security program - Security management organization |
| Topic 4: Risk Analysis | - Risk and vulnerability analysis techniques - Cybersecurity risk assessment concepts - Risk management fundamentals |
| Topic 5: Validating or Verifying the Security of Systems | - Security validation and verification techniques - Continuous improvement of security measures - Auditing and compliance |
| Topic 6: Addressing Risk with Security Policy, Organization, and Awareness | - Security awareness and training - Organizational security roles and responsibilities - Security policies and procedures |
| Topic 7: Addressing Risk with Selected Security Counter Measures | - Virtual Private Networks (VPNs) - Anti-virus and endpoint protection - Firewalls and network security devices - Patch management |
| Topic 8: Understanding the Current Industrial Security Environment | - Security challenges in OT environments - Convergence of IT and OT - Current state of industrial control systems security |
| Topic 9: Monitoring and Improving the CSMS | - Security lifecycle management - Incident detection and response - Continuous monitoring of IACS cybersecurity |
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NEW QUESTION # 67
Which of the following is NOT a general class of firewalls?
Answer: A
Explanation:
Packet filter, application proxy, and stateful inspection are all recognized types or classes of firewalls in both IT and industrial control environments. A network monitor, on the other hand, is not considered a firewall but rather a tool for observing and analyzing network traffic. It does not provide firewall-like controls for blocking or allowing traffic.
Reference: ISA/IEC 62443-3-3:2013, Section 4.2.3.3 ("Types of firewalls"); ISA/IEC 62443-1-1:2007, Section 3.2.6.
NEW QUESTION # 68
What does Layer 1 of the ISO/OSI protocol stack provide?
Available Choices (select all choices that are correct)
Answer: A
NEW QUESTION # 69
Which of the following is the BEST reason for periodic audits?
Available Choices (select all choices that are correct)
Answer: C
NEW QUESTION # 70
Security Levels (SLs) are broken down into which three types?
Available Choices (select all choices that are correct)
Answer: A
Explanation:
Security Levels (SLs) are a way of expressing the security performance of an industrial automation and control system (IACS) or its components. SLs are broken down into three types: target, capability, and achieved1.
* Target SL is the level of security performance that is required for a system or component to protect against a specific threat scenario. The target SL is determined by conducting a risk assessment that considers the likelihood and impact of potential security incidents1.
* Capability SL is the level of security performance that a system or component can provide based on its design and implementation. The capability SL is determined by evaluating the security functions and features of the system or component against a set of security requirements1.
* Achieved SL is the level of security performance that a system or component actually provides in its operational environment. The achieved SL is determined by verifying that the system or component is properly installed, configured, maintained, and monitored1.
References: ISA/IEC 62443 Standards to Secure Your Industrial Control System, page 3-4.
NEW QUESTION # 71
In a defense-in-depth strategy, what is the purpose of role-based access control?
Available Choices (select all choices that are correct)
Answer: A
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 # 72
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