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| Section | Objectives |
|---|---|
| Risk Analysis | - Risk and vulnerability analysis techniques - Cybersecurity risk assessment concepts - Risk management fundamentals |
| Addressing Risk with Implementation Measures | - Defense-in-depth strategy - Industrial network architecture and segmentation - Access control principles - Zones and conduits model |
| Addressing Risk with Selected Security Counter Measures | - Virtual Private Networks (VPNs) - Patch management - Firewalls and network security devices - Anti-virus and endpoint protection |
| Validating or Verifying the Security of Systems | - Security validation and verification techniques - Auditing and compliance - Continuous improvement of security measures |
| How Cyberattacks Happen | - Vulnerabilities in industrial systems - Cyber threats and attack vectors - Case studies of industrial cyber incidents |
| Monitoring and Improving the CSMS | - Continuous monitoring of IACS cybersecurity - Incident detection and response - Security lifecycle management |
| Understanding the Current Industrial Security Environment | - Current state of industrial control systems security - Security challenges in OT environments - Convergence of IT and OT |
| Addressing Risk with Security Policy, Organization, and Awareness | - Organizational security roles and responsibilities - Security policies and procedures - Security awareness and training |
| Creating A Security Program | - Developing a long-term security program - Security management organization - Defining information security policy |
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104. Frage
Which is the PRIMARY reason why Modbus over Ethernet is easy to manaqe in a firewall?
Available Choices (select all choices that are correct)
Antwort: D
Begründung:
According to the ISA/IEC 62443-2-4 standard, a training and security awareness program should include all personnel who have access to the industrial automation and control system (IACS) or who are involved in its operation, maintenance, or management. This includes vendors and suppliers, employees, temporary staff, contractors, and visitors. The purpose of the program is to ensure that all personnel are aware of the security risks and policies related to the IACS, and that they have the necessary skills and knowledge to perform their roles in a secure manner. The program should also cover the roles and responsibilities of different personnel, the reporting procedures for security incidents, and the best practices for security hygiene. References:
ISA/IEC 62443-2-4:2015 - Security for industrial automation and control systems - Part 2-4: Security program requirements for IACS service providers1 ISA/IEC 62443 Cybersecurity Fundamentals Specialist Training Course2
105. Frage
Which statement BEST describes the Target Security Protection Ratings?
Antwort: C
Begründung:
In ISA/IEC 62443, Target Security Protection Ratings correspond to the concept of Target Security Levels (SL-T).
Step 1: Definition of target ratings
Target ratings describe the desired level of protection that a system or zone must achieve during operation, based on risk assessment.
Step 2: Difference between target and achieved
* Target ratings define what is required.
* Achieved ratings (SL-A) describe what has actually been implemented and verified.
Step 3: Why Option D is correct
The target rating outlines the intended security outcome that implementation measures must fulfill during operation, not what currently exists.
Step 4: Why other options are incorrect
Actual achieved levels, cost metrics, or implementation measurements are separate concepts.
Therefore, the correct description is that they outline the desired levels of system security requirements to be fulfilled during operation.
106. Frage
Which of the following is an industry sector-specific standard?
Available Choices (select all choices that are correct)
Antwort: C
107. Frage
Which is a role of the application layer?
Available Choices (select all choices that are correct)
Antwort: B
108. Frage
Which of the following refers to internal rules that govern how an organization protects critical system resources?
Available Choices (select all choices that are correct)
Antwort: B
Begründung:
A security policy refers to internal rules that govern how an organization protects critical system resources, such as industrial control systems (ICS). A security policy defines the objectives, scope, roles, responsibilities, and requirements for securing the ICS environment, as well as the procedures and guidelines for implementing, monitoring, and enforcing the security measures. A security policy also establishes the baseline for assessing and managing the security risks to the ICS, and for ensuring compliance with relevant standards, regulations, and best practices. A security policy is a key component of the ICS security program, and it should be documented, communicated, and reviewed regularly.
The other choices are not correct because:
* A. Formal guidance. Formal guidance refers to external sources of information and recommendations that can help an organization improve its ICS security posture, such as standards, frameworks, guidelines, and best practices. Formal guidance is not an internal rule, but rather a reference that can be used to develop, implement, and evaluate the security policy and controls. For example, the ISA/IEC
62443 series of standards provide formal guidance on how to secure ICS from cyber threats1.
* B. Legislation. Legislation refers to external laws and regulations that impose legal obligations and penalties on an organization for its ICS security performance, such as the NERC CIP standards for the electric sector2, or the EU NIS Directive for critical infrastructure operators3. Legislation is not an internal rule, but rather a compliance requirement that must be met by the organization. Legislation may also influence the security policy and controls, as the organization needs to align its security objectives and practices with the legal expectations and consequences.
* D. Code of conduct. A code of conduct refers to a set of ethical principles and values that guide the behavior and decision-making of an organization and its employees, such as honesty, integrity, respect, and accountability. A code of conduct is not an internal rule for protecting critical system resources, but rather a general norm for conducting business and maintaining a positive reputation. A code of conduct may also support the security policy and culture, as it can foster a sense of responsibility and trust among the ICS stakeholders.
References:
1: ISA/IEC 62443 Standards to Secure Your Industrial Control System
2: NERC Critical Infrastructure Protection Standards
3: EU Network and Information Systems Directive
109. Frage
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