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| Section | Objectives |
|---|---|
| Risk Analysis | - Risk management fundamentals - Cybersecurity risk assessment concepts - Risk and vulnerability analysis techniques |
| Validating or Verifying the Security of Systems | - Continuous improvement of security measures - Auditing and compliance - Security validation and verification techniques |
| Addressing Risk with Security Policy, Organization, and Awareness | - Security awareness and training - Security policies and procedures - Organizational security roles and responsibilities |
| How Cyberattacks Happen | - Case studies of industrial cyber incidents - Cyber threats and attack vectors - Vulnerabilities in industrial systems |
| Addressing Risk with Selected Security Counter Measures | - Firewalls and network security devices - Patch management - Virtual Private Networks (VPNs) - Anti-virus and endpoint protection |
| Creating A Security Program | - Security management organization - Developing a long-term security program - Defining information security policy |
| Monitoring and Improving the CSMS | - Incident detection and response - Continuous monitoring of IACS cybersecurity - Security lifecycle management |
| Understanding the Current Industrial Security Environment | - Convergence of IT and OT - Security challenges in OT environments - Current state of industrial control systems security |
| Addressing Risk with Implementation Measures | - Industrial network architecture and segmentation - Access control principles - Defense-in-depth strategy - Zones and conduits model |
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NEW QUESTION # 13
Which analysis method is MOST frequently used as an input to a security risk assessment?
Available Choices (select all choices that are correct)
Answer: B
Explanation:
A Process Hazard Analysis (PHA) is a systematic method of identifying and evaluating the potential hazards associated with an industrial process. A PHA can help to identify the sources of cyber threats, the consequences of cyber incidents, and the existing safeguards and mitigation measures. A PHA is most frequently used as an input to a security risk assessment because it provides a comprehensive and structured overview of the process and its risks, which can then be used to determine the security level targets and security countermeasures for the industrial automation and control system (IACS). A PHA can also help to align the security objectives with the safety objectives of the process, and to ensure that the security measures do not compromise the safety or operability of the process. References:
ISA/IEC 62443 Standards to Secure Your Industrial Control System, page 10 Using the ISA/IEC 62443 Standard to Secure Your Control System, page 17
NEW QUESTION # 14
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 # 15
Which of the following is an element of monitoring and improving a CSMS?
Available Choices (select all choices that are correct)
Answer: B,C
Explanation:
Monitoring and improving a Cybersecurity Management System (CSMS) as per ISA/IEC 62443 standards involves several key activities that ensure the system remains effective and responsive to emerging threats.
Two critical elements of this ongoing process are:
A). Increase in staff training and security awareness: Regular training and increasing security awareness among staff are vital to maintaining a secure operating environment. This proactive measure helps in reducing human error and enhancing the ability to respond effectively to cybersecurity incidents.
D). Review of system logs and other key data files: Continuous review and analysis of system logs and other relevant data files are essential for detecting, investigating, and responding to potential security incidents.
This monitoring helps in identifying anomalies that may indicate a security breach or operational issues needing attention.
NEW QUESTION # 16
What is a major reason for maintaining an asset inventory baseline in Configuration Management (SP Element 2)?
Answer: B
Explanation:
SP Element 2 in ISA/IEC 62443-2-1 focuses on Configuration Management, with the asset inventory baseline as a foundational requirement.
Step 1: Purpose of an inventory baseline
The inventory baseline documents all hardware, software, firmware, and configuration items that make up the IACS. This establishes a known, trusted state of the system.
Step 2: Architecture visibility
By maintaining this baseline, the asset owner gains a clear and accurate understanding of the IACS architecture, including system components, versions, and dependencies.
Step 3: Why other options are incorrect
Physical access control and user authentication are addressed in different SP Elements. Event management detects anomalies, but it relies on the inventory baseline rather than replacing it.
Thus, the primary reason is to document IACS architecture.
NEW QUESTION # 17
What is the primary focus of Part 3-2 in the ISA/IEC 62443 series?
Answer: B
Explanation:
ISA/IEC 62443-3-2 is titled "Security risk assessment for system design" and provides a methodology for performing cybersecurity risk assessments and for the design of security zones and conduits within IACS. It describes how to identify assets, assess threats and vulnerabilities, assign Security Levels (SLs), and develop a security design based on risk.
Reference: ISA/IEC 62443-3-2:2020, Scope and Section 4.1 ("Purpose and objectives of 62443-3-2").
NEW QUESTION # 18
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