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ISA/IEC 62443 Cybersecurity Fundamentals Specialist Sample Questions (Q64-Q69):

NEW QUESTION # 64
What are the three main components of the ISASecure Integrated Threat Analysis (ITA) Program?
Available Choices (select all choices that are correct)

A. Software development security assurance, functional security assessment, and communications robustness testing
B. Communications robustness testing, functional security assurance, and software robustness communications
C. Communication speed, disaster recovery, and essential security functionality assessment
D. Software robustness security testing, functional software assessment assurance, and essential security functionality assessment

Answer: A

Explanation:
The ISASecure Integrated Threat Analysis (ITA) Program is a certification scheme that certifies off-the-shelf automation and control systems to the ISA/IEC 62443 series of standards1. The ITA Program consists of three main components2:
* Software Development Security Assurance (SDSA): This component evaluates the security lifecycle and practices of the product supplier, such as security requirements, design, implementation, verification, and maintenance. The SDSA certification is based on the ISA/IEC 62443-4-1 standard.
* Functional Security Assessment (FSA): This component verifies the security functions and features implemented in the product, such as identification and authentication, access control, encryption, audit logging, and security management. The FSA certification is based on the ISA/IEC 62443-4-2 standard.
* Communications Robustness Testing (CRT): This component tests the resilience of the product against network attacks, such as denial-of-service, fuzzing, spoofing, and replay. The CRT certification is based on the ISA/IEC 62443-4-2 and ISA/IEC 62443-3-3 standards .
References:
* 1: ISASecure - IEC 62443 Conformance Certification - Official Site
* 2: ISASecure - IEC 62443 Conformance Certification - Official Site
* [3]: ISA/IEC 62443-4-1: Secure Product Development Lifecycle Requirements, ISA, 2018.
* [4]: ISA/IEC 62443-4-2: Technical Security Requirements for IACS Components, ISA, 2019.
* [5]: ISA/IEC 62443-4-2: Technical Security Requirements for IACS Components, ISA, 2019.
* [6]: ISA/IEC 62443-3-3: System Security Requirements and Security Levels, ISA, 2013.

NEW QUESTION # 65
Which of the following is an example of separation of duties as a part of system development and maintenance?
Available Choices (select all choices that are correct)

A. Developers write and then test their own code.
B. Configuration settings are made by one party and self-reviewed using a checklist.
C. Changes are approved by one party and implemented by another.
D. Design and implementation are performed by the same team.

Answer: C

Explanation:
Separation of duties is a security principle that aims to prevent fraud, errors, conflicts of interest, or misuse of resources by dividing critical tasks or functions among different people or teams. It is one of the foundational requirements (FRs) of the ISA/IEC 62443 standards for securing industrial automation and control systems (IACSs). According to the ISA/IEC 62443-2-1 standard, separation of duties includes the following system requirements (SRs):
* SR 2.1: Security management policy
* SR 2.2: Personnel security
* SR 2.3: System development and maintenance
* SR 2.4: Incident response and recovery
* SR 2.5: Compliance and review
Among these SRs, the one that is most related to the example of system development and maintenance is SR
2.3. SR 2.3 requires that the IACS shall provide the capability to ensure that the development and maintenance of the system and its components are performed in a secure manner. This means that the IACS should have a mechanism to control the access and authorization of developers, testers, integrators, and maintainers who work on the system and its components. It also means that the IACS should have a mechanism to verify and validate the quality and security of the system and its components before, during, and after the development and maintenance processes.
Therefore, an example of separation of duties as a part of system development and maintenance is that changes are approved by one party and implemented by another. This ensures that the changes are authorized, documented, and reviewed by someone who is not involved in the implementation. This reduces the risk of introducing errors, vulnerabilities, or malicious code into the system and its components.
References:
* ISA/IEC 62443-2-1:2010, Security for industrial automation and control systems - Part 2-1: Establishing an industrial automation and control systems security program1
* ISA/IEC 62443 Cybersecurity Fundamentals Specialist Certificate Program2
* ISA/IEC 62443 Cybersecurity Library3
* Using the ISA/IEC 62443 Standards to Secure Your Control Systems4

NEW QUESTION # 66
What are the connections between security zones called?
Available Choices (select all choices that are correct)

A. Firewalls
B. Tunnels
C. Conduits
D. Pathways

Answer: C

NEW QUESTION # 67
What is the purpose of ISO/IEC 15408 (Common Criteria)?
Available Choices (select all choices that are correct)

A. To describe what constitutes a secure product
B. To describe a process for risk management
C. To define a security management organization
D. To define a product development evaluation methodology

Answer: D

NEW QUESTION # 68
Security Levels (SLs) are broken down into which three types?
Available Choices (select all choices that are correct)

A. SL-1, SL-2, and SL-3
B. Target.capability, and achieved
C. Target.capacity, and achieved
D. Target.capability, and availability

Answer: B

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 # 69
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ISA/IEC 62443 Cybersecurity Fundamentals Specialist Sample Questions (Q64-Q69):

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