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| Section | Objectives |
|---|---|
| Topic 1: How Cyberattacks Happen | - Case studies of industrial cyber incidents - Cyber threats and attack vectors - Vulnerabilities in industrial systems |
| Topic 2: Validating or Verifying the Security of Systems | - Security validation and verification techniques - Continuous improvement of security measures - Auditing and compliance |
| Topic 3: Addressing Risk with Selected Security Counter Measures | - Firewalls and network security devices - Patch management - Virtual Private Networks (VPNs) - Anti-virus and endpoint protection |
| Topic 4: Addressing Risk with Security Policy, Organization, and Awareness | - Organizational security roles and responsibilities - Security awareness and training - Security policies and procedures |
| Topic 5: Risk Analysis | - Risk management fundamentals - Risk and vulnerability analysis techniques - Cybersecurity risk assessment concepts |
| Topic 6: Understanding the Current Industrial Security Environment | - Security challenges in OT environments - Convergence of IT and OT - Current state of industrial control systems security |
| Topic 7: Addressing Risk with Implementation Measures | - Zones and conduits model - Access control principles - Defense-in-depth strategy - Industrial network architecture and segmentation |
| Topic 8: Creating A Security Program | - Security management organization - Defining information security policy - Developing a long-term security program |
| Topic 9: Monitoring and Improving the CSMS | - Incident detection and response - Security lifecycle management - Continuous monitoring of IACS cybersecurity |
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NEW QUESTION # 51
What is the name of the missing layer in the Open Systems Interconnection (OSI) model shown below?
Answer: C
Explanation:
The Open Systems Interconnection (OSI) model is a framework that describes the functions of a networking system. The OSI model categorizes the computing functions of the different network components, outlining the rules and requirement needed to support the interoperability of the software and hardware that make up the network1.
The OSI model consists of seven abstraction layers arranged in a top-down order: Physical, Data Link, Network, Transport, Session, Presentation, and Application. The Transport layer is the fourth layer in the OSI model, and it is responsible for ensuring reliable and efficient data transfer between the Network layer and the Session layer2. The Transport layer uses protocols such as Transmission Control Protocol (TCP) and User Datagram Protocol (UDP) to provide end-to-end communication services, such as error detection and correction, flow control, congestion control, and segmentation2.
The image that you sent shows a 3D representation of the OSI model, with the layers stacked on top of each other. The missing layer is the Transport layer, which isrepresented by a pink box with a white arrow pointing to it. The arrow is labeled "TCP, UDP".
1: What is the OSI Model? 7 Network Layers Explained | Fortinet 2: What is OSI Model | 7 Layers Explained
- GeeksforGeeks
NEW QUESTION # 52
Which statement is TRUE regarding Intrusion Detection Systems (IDS)?
Available Choices (select all choices that are correct)
Answer: B
NEW QUESTION # 53
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)
Answer: A
NEW QUESTION # 54
Which is a reason for
and physical security regulations meeting a mixed resistance?
Available Choices (select all choices that are correct)
Answer: C
Explanation:
Cybersecurity and physical security regulations are intended to provide guidance and requirements for protecting industrial control systems from various threats and risks. However, these regulations may face mixed resistance from different stakeholders for various reasons. One of the reasons is that there are a limited number of enforced cybersecurity and physical security regulations, especially at the international level. This means that some regions or countries may have more stringent or comprehensive regulations than others, creating inconsistencies and challenges for cross-border cooperation and compliance. Moreover, some regulations may be outdated or not aligned with the current best practices and standards, such as ISA/IEC
62443, which may limit their effectiveness and applicability. Therefore, some organizations may prefer to follow voluntary standards or frameworks, such as ISA/IEC 62443, rather than mandatory regulations, as they may offer more flexibility and adaptability to the specific needs and contexts of each industrial control system. References:
ISA/IEC 62443 Standards to Secure Your Industrial Control System, page 3 Using the ISA/IEC 62443 Standard to Secure Your Control System, page 9
NEW QUESTION # 55
Which statement BEST describes the Target Security Protection Ratings?
Answer: D
Explanation:
Target Security Levels (SL-T) or Target Security Protection Ratings are defined as the desired security levels that must be achieved for a specific zone or conduit, based on risk assessment and business requirements.
"The Target Security Level (SL-T) represents the desired level of protection against threats for a zone or conduit, to be fulfilled through appropriate security measures."
- ISA/IEC 62443-3-2:2020, Clause 6.5.2 - Target SL Vector Determination They are not the actual achieved level (SL-A), nor are they a measure of cost-effectiveness. SL-Ts guide system designers and implementers in selecting appropriate security controls.
References:
ISA/IEC 62443-3-2:2020 - Clause 6.5.2
ISA/IEC 62443-1-1 - Security Level Types: SL-T, SL-A, SL-C
NEW QUESTION # 56
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