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ISA/IEC 62443 Cybersecurity Fundamentals Specialist Sample Questions (Q85-Q90):

NEW QUESTION # 85
Which organization manages the ISASecure conformance certification program?
Available Choices (select all choices that are correct)

A. National Institute of Standards and Technology
B. Security Compliance Institute
C. American Society for Industrial Security
D. Automation Federation

Answer: B

NEW QUESTION # 86
What is a commonly used protocol for managing secure data transmission over a Virtual Private Network (VPN)?
Available Choices (select all choices that are correct)

A. MPLS
B. HTTPS
C. SSH
D. IPSec

Answer: D

Explanation:
IPSec is a commonly used protocol for managing secure data transmission over a VPN. IPSec stands for Internet Protocol Security and it is a set of standards that define how to encrypt and authenticate data packets that travel between two or more devices over an IP network. IPSec can operate in two modes: transport mode and tunnel mode. In transport mode, IPSec only encrypts the payload of the IP packet, leaving the header intact. In tunnel mode, IPSec encrypts the entire IP packet and encapsulates it in a new IP header. Tunnel mode is more secure and more suitable for VPNs, as it can protect the original source and destination addresses of the IP packet from eavesdropping or spoofing. IPSec uses two main protocols to provide security services: Authentication Header (AH) and Encapsulating Security Payload (ESP). AH provides data integrity and source authentication, but not confidentiality. ESP provides data integrity, source authentication, and confidentiality. IPSec also uses two protocols to establish and manage security associations (SAs), which are the parameters and keys used for encryption and authentication: Internet Key Exchange (IKE) and Internet Security Association and Key Management Protocol (ISAKMP). IKE is a protocol that negotiates and exchanges cryptographic keys between two devices. ISAKMP is a protocol that defines the format and structure of the messages used for key exchange and SA management.
References:
* ISA/IEC 62443-3-3:2018, Section 4.2.3.7.1, VPN1
* ISA/IEC 62443-4-2:2019, Section 4.2.3.7.1, VPN
* ISA/IEC 62443 Cybersecurity Fundamentals Specialist Study Guide, Section 5.3.2, VPN
* ISA/IEC 62443 Cybersecurity Fundamentals Specialist Exam Specification, Section 5.3.2, VPN

NEW QUESTION # 87
Which factor drives the selection of countermeasures?
Available Choices (select all choices that are correct)

A. Foundational requirements
B. Output from a risk assessment
C. System design
D. Security levels

Answer: B

Explanation:
The selection of countermeasures is driven by the output from a risk assessment, which identifies the risks and their associated likelihood and consequences for each zone and conduit in the industrial automation and control system (IACS). The risk assessment also determines the target security level (SL-T) for each zone and conduit, which represents the desired level of protection against the identified threats. The countermeasures are then selected based on the SL-T and the existing security level (SL-A) of the zone and conduit, as well as the cost and feasibility of implementation. The countermeasures should aim to reduce the risk to an acceptable level by increasing the SL-A to meet or exceed the SL-T. References: ISA/IEC 62443-3-2:2018 - Security risk assessment for system design, ISA/IEC 62443-3-3:2013 - System security requirements and security levels, ISA/IEC 62443 Cybersecurity Fundamentals Specialist Training Course

NEW QUESTION # 88
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. Software robustness security testing, functional software assessment assurance, and essential security functionality assessment
D. Communication speed, disaster recovery, 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 # 89
Whose responsibility is it to determine the level of risk an organization is willing to tolerate?
Available Choices (select all choices that are correct)

A. Management
B. Operations Department
C. Safety Department
D. Legal Department

Answer: A

Explanation:
According to the ISA/IEC 62443 standards, the level of risk an organization is willing to tolerate is determined by the management, as they are responsible for defining the business and risk objectives, as well as the security policies and procedures for the organization. The management also has the authority to allocate the necessary resources and assign the roles and responsibilities for implementing and maintaining the security program. The legal, operations, and safety departments may provide input and feedback to the management, but they do not have the final say in determining the risk tolerance level. References: ISA/IEC 62443-2-1:2010
- Establishing an industrial automation and control systems security program, section 4.2.1.

NEW QUESTION # 90
......

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