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| Section | Objectives |
|---|---|
| Validating or Verifying the Security of Systems | - Auditing and compliance - Security validation and verification techniques - Continuous improvement of security measures |
| Understanding the Current Industrial Security Environment | - Convergence of IT and OT - Security challenges in OT environments - Current state of industrial control systems security |
| How Cyberattacks Happen | - Vulnerabilities in industrial systems - Case studies of industrial cyber incidents - Cyber threats and attack vectors |
| Addressing Risk with Selected Security Counter Measures | - Firewalls and network security devices - Virtual Private Networks (VPNs) - Patch management - Anti-virus and endpoint protection |
| Addressing Risk with Security Policy, Organization, and Awareness | - Security awareness and training - Security policies and procedures - Organizational security roles and responsibilities |
| Creating A Security Program | - Defining information security policy - Security management organization - Developing a long-term security program |
| Addressing Risk with Implementation Measures | - Defense-in-depth strategy - Industrial network architecture and segmentation - Access control principles - Zones and conduits model |
| Risk Analysis | - Risk management fundamentals - Cybersecurity risk assessment concepts - Risk and vulnerability analysis techniques |
| Monitoring and Improving the CSMS | - Security lifecycle management - Continuous monitoring of IACS cybersecurity - Incident detection and response |
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NEW QUESTION # 133
Which of the ISA 62443 standards focuses on the process of developing secure products?
Available Choices (select all choices that are correct)
Answer: C
Explanation:
The ISA/IEC 62443 series of standards is divided into four main parts, each covering a different aspect of industrial automation and control systems (IACS) cybersecurity1:
* Part 1: Terminology, Concepts, and Models
* Part 2: Policies and Procedures
* Part 3: System Requirements
* Part 4: Component Requirements The part 4 of the series focuses on the requirements for the secure development and maintenance of products that are used in IACS, such as controllers, sensors, actuators, network devices, software applications, and cloud services. The part 4 consists of two standards1:
NEW QUESTION # 134
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 # 135
The Risk Analysis category contains background information that is used where?
Available Choices (select all choices that are correct)
Answer: A
Explanation:
The Risk Analysis category contains background information that is used to identify and assess the risks associated with the cyber-physical system (CPS) under consideration. This information includes the system description, the threat model, the vulnerability analysis, the risk assessment method, and the risk acceptance criteria. The Risk Analysis category is used as an input for many other elements in the CSMS, such as the Risk ID, Risk Reduction, Risk Acceptance, and Risk Monitoring elements. The Risk Analysis category provides the basis for the risk management process and helps to ensure a consistent and systematic approach to cybersecurity in the CPS. References:
* Using the ISA/IEC 62443 Standards to Secure Your Control System, page 13
* [ISA/IEC 62443 Cybersecurity Fundamentals Specialist Study Guide], page 34
NEW QUESTION # 136
Which of the following is NOT listed as a potential consequence of compromising IACS according to the ISA99 Committee scope?
Answer: C
Explanation:
The ISA99 Committee (which developed ISA/IEC 62443) defines the scope and impact of IACS cybersecurity incidents in terms of negative consequences.
Step 1: Recognized consequences
The standard identifies consequences such as:
* Financial losses
* Environmental damage
* Endangerment of public or worker safety
* Loss of proprietary or sensitive information
Step 2: Purpose of defining consequences
These consequences justify why IACS cybersecurity must prioritize availability, integrity, and safety in addition to confidentiality.
Step 3: Why increased product sales is excluded
"Increased product sales" is not a negative consequence and is not mentioned anywhere in the ISA99 scope as a result of a cybersecurity compromise.
Therefore, the correct answer is Increased product sales.
NEW QUESTION # 137
Authorization (user accounts) must be granted based on which of the following?
Available Choices (select all choices that are correct)
Answer: C
Explanation:
Authorization is the process of granting or denying access to a network resource or function. Authorization (user accounts) must be granted based on specific roles, which are defined as sets of permissions and responsibilities assigned to a user or a group of users. Roles should be based on the principle of least privilege, which means that users should only have the minimum level of access required to perform their tasks. Roles should also be based on the principle of separation of duties, which means that users should not have conflicting or overlapping responsibilities that could compromise the security or integrity of the system.
Authorization based on individual preferences or common needs for large groups is not recommended, as it could lead to excessive or unnecessary access rights, or to inconsistent or conflicting policies. Authorization based on system complexity is also not a good criterion, as it could result in overcomplicated or unclear roles that are difficult to manage or audit. References:
ISA/IEC 62443-3-3:2013 - Security for industrial automation and control systems - Part 3-3: System security requirements and security levels1 ISA/IEC 62443-2-1:2010 - Security for industrial automation and control systems - Part 2-1: Establishing an industrial automation and control systems security program2 ISA/IEC 62443-4-1:2018 - Security for industrial automation and control systems - Part 4-1: Product security development life-cycle requirements3
NEW QUESTION # 138
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