[Dec-2025] Dumps Brief Outline Of The ISA-IEC-62443 Exam - ActualCollection
ISA-IEC-62443 Training & Certification Get Latest ISA Cybersecurity
NEW QUESTION # 75
Which of the following is the underlying protocol for Ethernet/IP?
Available Choices (select all choices that are correct)
- A. Building Automation and Control Network (BACnet)
- B. Object Linking and Embedding (OLE) for Process Control
- C. Common Industrial Protocol
- D. Highway Addressable Remote Transducer (HART)
Answer: C
Explanation:
Ethernet/IP is an industrial network protocol that adapts the Common Industrial Protocol (CIP) to standard Ethernet. CIP is an object-oriented protocol that provides a unified communication architecture for various industrial automation applications, such as control, safety, security, energy, synchronization and motion, information and network management. CIP defines a set of messages and services for interacting with devices and data on the network, as well as a set of device profiles for consistent implementation of automation functions across different products. Ethernet/IP uses the transport and control protocols of standard Ethernet, such as TCP/IP and IEEE 802.3, to define the features and functions for its lower layers. Ethernet/IP also uses UDP to transport I/O messages and supports various network topologies, such as star, linear, ring and wireless. Ethernet/IP is one of the leading industrial protocols in the United States and is widely used in a range of industries, such as factory, hybrid and process. Ethernet/IP is managed by ODVA, Inc., a global trade and standards development organization. References:
* EtherNet/IP - Wikipedia
* EtherNet/IP | ODVA Technologies | Industrial Automation
NEW QUESTION # 76
In a defense-in-depth strategy, what is the purpose of role-based access control?
Available Choices (select all choices that are correct)
- A. Ensures that users can access only the functions they need for their job
- B. Ensures that users correctly manage their username and password
- C. Ensures that users can access systems from remote locations
- D. Ensures that users can access only certain devices on the network
Answer: A
Explanation:
Role-based access control (RBAC) is a method of restricting access to resources based on the roles of individual users within an organization. RBAC assigns permissions and responsibilities to roles, rather than to individual users, and then assigns users to those roles. This way, users can only perform the actions that are relevant and necessary for their role, and not access or modify any other resources that are beyond their scope of authority. RBAC is one of the security countermeasures that can be implemented in a defense-in-depth strategy, which is a layered approach to protect industrial automation and control systems (IACS) from cyber threats. RBAC can help prevent unauthorized access, misuse, or sabotage of IACS resources, as well as reduce the risk of human error or insider attacks.
References:
* ISA/IEC 62443-3-3:2013, Security for industrial automation and control systems - Part 3-3: System security requirements and security levels, Clause 5.3.2.11
* ISA/IEC 62443-2-1:2010, Security for industrial automation and control systems - Part 2-1: Establishing an industrial automation and control systems security program, Clause 6.2.2.32
* ISA/IEC 62443-4-1:2018, Security for industrial automation and control systems - Part 4-1: Product security development life-cycle requirements, Clause 5.2.3.23
* ISA/IEC 62443-4-2:2019, Security for industrial automation and control systems - Part 4-2: Technical security requirements for IACS components, Clause 4.2.3.24
NEW QUESTION # 77
Which is a commonly used protocol for managing secure data transmission on the Internet?
Available Choices (select all choices that are correct)
- A. Secure Telnet
- B. Secure Sockets Layer
- C. Microsoft Point-to-Point Encryption
- D. Datagram Transport Layer Security (DTLS)
Answer: B
NEW QUESTION # 78
Which is an important difference between IT systems and IACS?
Available Choices (select all choices that are correct)
- A. The IACS security priority is integrity.
- B. The IT security priority is availability.
- C. Routers are not used in IACS networks.
- D. IACS cybersecurity must address safety issues.
Answer: A,D
NEW QUESTION # 79
Which steps are included in the ISA/IEC 62443 assess phase?
Available Choices (select all choices that are correct)
- A. Allocation of IACS assets to zones and conduits, and detailed cyber risk assessment
- B. Detailed cyber risk assessment and cybersecurity maintenance, monitoring, and management of change
- C. Cybersecurity requirements specification and allocation of IACS assets to zones and conduits
- D. Cybersecurity requirements specification and detailed cyber risk assessment
Answer: C
Explanation:
The ISA/IEC 62443 standards are focused on industrial automation and control systems security. The assess phase within the ISA/IEC 62443 framework is designed to identify and analyze potential vulnerabilities in the industrial control system (ICS) environment. One of the key steps in this phase is the specification of cybersecurity requirements. Additionally, it involves the allocation of industrial automation and control system (IACS) assets to defined zones and conduits to manage and segregate the network and improve security. These measures help to ensure that security requirements are met and that the assets are protected according to their security needs. Therefore, the correct answer is B, which mentions both the cybersecurity requirements specification and the allocation of IACS assets to zones and conduits as part of the assess phase.
NEW QUESTION # 80
Which of the following ISA-99 (IEC 62443) Reference Model levels is named correctly?
Available Choices (select all choices that are correct)
- A. Level 2: Quality Control
- B. Level 3: Operations Management
- C. Level 1: Supervisory Control
- D. Level 4: Process
Answer: B
Explanation:
The ISA-99/IEC 62443 standards for industrial automation and control systems security categorize network and system components into different levels based on their operational context. The correct name from the provided options for one of these levels is Level 3: Operations Management. This level typically encompasses systems that manage production control systems, including batch management, production scheduling, and overall factory operations. The other levels listed, such as Supervisory Control and Process, refer to different aspects of the system but are not named correctly in the options provided. Level 1 is correctly referred to as
"Basic Control," and Level 4 should be "Business Logistics" instead of "Process."
NEW QUESTION # 81
Which analysis method is MOST frequently used as an input to a security risk assessment?
Available Choices (select all choices that are correct)
- A. Process Hazard Analysis (PHA)
- B. Failure Mode and Effects Analysis
- C. System Safety Analysis(SSA)
- D. Job Safety Analysis
Answer: A
Explanation:
A Process Hazard Analysis (PHA) is a systematic method of identifying and evaluating the potential hazards associated with an industrial process. A PHA can help to identify the sources of cyber threats, the consequences of cyber incidents, and the existing safeguards and mitigation measures. A PHA is most frequently used as an input to a security risk assessment because it provides a comprehensive and structured overview of the process and its risks, which can then be used to determine the security level targets and security countermeasures for the industrial automation and control system (IACS). A PHA can also help to align the security objectives with the safety objectives of the process, and to ensure that the security measures do not compromise the safety or operability of the process. References:
* ISA/IEC 62443 Standards to Secure Your Industrial Control System, page 10
* Using the ISA/IEC 62443 Standard to Secure Your Control System, page 17
NEW QUESTION # 82
Why is OPC Classic considered firewall unfriendly?
Available Choices (select all choices that are correct)
- A. OPC Classic is allowed to use only port 80.
- B. OPC Classic uses DCOM, which dynamically assigns any port between 1024 and 65535.
- C. OPC Classic works with control devices from different manufacturers.
- D. OPC Classic is an obsolete communication standard.
Answer: B
NEW QUESTION # 83
Which service does an Intrusion Detection System (IDS) provide?
Available Choices (select all choices that are correct)
- A. It detects attempts to break into or misuse a computer system.
- B. It is the lock on the door for networks and computer systems.
- C. It is effective against all vulnerabilities in networks and computer systems.
- D. It blocks malicious activity in networks and computer systems.
Answer: A
Explanation:
An intrusion detection system (IDS) is a network security tool that monitors network traffic and devices for known malicious activity, suspicious activity or security policy violations. The IDS sends alerts to IT and security teams when it detects any security risks and threats. However, an IDS does not block or prevent the malicious activity, it only detects and reports it. Therefore, an IDS is not the lock on the door for networks and computer systems, nor is it effective against all vulnerabilities in networks and computer systems. An IDS can be combined with an intrusion prevention system (IPS) to block the malicious activity in real time.
References:
* What is Intrusion Detection Systems (IDS)? How does it Work? | Fortinet1
* Intrusion Detection System (IDS) - GeeksforGeeks2
* What is an intrusion detection system (IDS)? - IBM3
NEW QUESTION # 84
In the context of global frameworks, what does the acronym SDO stand for?
- A. Systematic Development Organization
- B. Standards Development Organization
- C. Security Development Organization
- D. Software Development Organization
Answer: B
Explanation:
In the context of international standards and frameworks, SDO stands for "Standards Development Organization." SDOs are organizations like ISA, IEC, ISO, and NIST, which are responsible for developing, maintaining, and publishing standards used globally for industrial cybersecurity and other domains.
Reference: ISA/IEC 62443-1-1:2007, Section 3.1 (Abbreviations and terms); official definitions in standards literature.
NEW QUESTION # 85
Security Levels (SLs) are broken down into which three types?
Available Choices (select all choices that are correct)
- A. Target.capability, and achieved
- B. Target.capacity, and achieved
- C. Target.capability, and availability
- D. SL-1, SL-2, and SL-3
Answer: A
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 # 86
After receiving an approved patch from the JACS vendor, what is BEST practice for the asset owner to follow?
- A. If a high priority, apply the patch at the first unscheduled outage.
- B. If no problems are experienced with the current IACS, it is not necessary to apply the patch.
- C. If a medium priority, schedule the installation within three months after receipt.
- D. If a low priority, there is no need to apply the patch.
Answer: A
Explanation:
According to the ISA/IEC 62443 Cybersecurity Fundamentals Specialist resources, patches are software updates that fix bugs, vulnerabilities, or improve performance of a system. Patches are classified into three categories based on their urgency and impact: low, medium, and high. Low priority patches are those that have minimal or no impact on the system functionality or security, and can be applied at the next scheduled maintenance. Medium priority patches are those that have moderate impact on the system functionality or security, and should be applied within a reasonable time frame, such as three months. High priority patches are those that have significant or critical impact on the system functionality or security, and should be applied as soon as possible, preferably at the first unscheduled outage. Applying patches in a timely manner is a best practice for maintaining the security and reliability of an industrial automation and control system (IACS).
References:
* ISA/IEC 62443 Cybersecurity Fundamentals Specialist Study Guide, Section 4.3.2, Patch Management
* ISA/IEC 62443-2-1:2009, Security for industrial automation and control systems - Part 2-1: Establishing an industrial automation and control systems security program, Clause 5.3.2.2, Patch management
* ISA/IEC 62443-3-3:2013, Security for industrial automation and control systems - Part 3-3: System security requirements and security levels, Clause 4.3.3.6.2, Patch management
NEW QUESTION # 87
What impact do increasing cybercrime attacks have?
- A. They primarily target personal devices.
- B. They focus solely on financial institutions.
- C. They affect suppliers of essential services.
- D. They lead to improved cybersecurity measures.
Answer: C
Explanation:
Increasing cybercrime attacks have a significant impact on suppliers of essential services, including those in energy, water, transportation, and manufacturing. ISA/IEC 62443 and related critical infrastructure guidance highlight that attackers are increasingly targeting organizations whose disruption can have widespread societal consequences. While cybercrime can drive organizations to improve cybersecurity, the main documented impact is the risk to essential services and infrastructure.
Reference: ISA/IEC 62443-1-1:2007, Section 4.4; NIST CSF, Section 1.0.
NEW QUESTION # 88
What is the formula for calculating risk?
- A. Risk = Likelihood + Consequence
- B. Risk = Threat + Vulnerability + Consequence
- C. Risk = Threat * Vulnerability * Consequence
- D. Risk = Threat - Vulnerability * Consequence
Answer: C
Explanation:
The formula for risk in ISA/IEC 62443 is typically expressed as:
Risk = Threat × Vulnerability × Consequence
This means that risk is a product of the likelihood that a threat will exploit a vulnerability and the impact (consequence) if that event occurs. This formula is consistently used in both the general information security domain and explicitly referenced in the ISA/IEC 62443-3-2 standard in the context of IACS risk assessments.
Reference: ISA/IEC 62443-3-2:2020, Section 5.2 ("Risk is typically calculated as Threat × Vulnerability × Consequence"); ISA/IEC 62443-2-1:2009, Section 5.2.4.
NEW QUESTION # 89
Which organization manages the ISASecure conformance certification program?
Available Choices (select all choices that are correct)
- A. American Society for Industrial Security
- B. Security Compliance Institute
- C. National Institute of Standards and Technology
- D. Automation Federation
Answer: B
NEW QUESTION # 90
What does IACS stand for?
- A. International Automated and Control Systems
- B. Industrial Automation and Control Systems
- C. Integrated Automation and Control Systems
- D. Industrial Associations and Control Systems
Answer: B
Explanation:
IACS stands for "Industrial Automation and Control Systems." The ISA/IEC 62443 series defines IACS as systems used for industrial automation, process control, and related functions. These include systems such as Distributed Control Systems (DCS), SCADA systems, and PLCs. The term encompasses all electronic systems, networks, and equipment used to automate industrial processes.
Reference: ISA/IEC 62443-1-1:2007, Section 3.2.1 (Definitions and Abbreviations); Glossary entry for
"IACS."
NEW QUESTION # 91
What is a key feature of the NIS2 Directive?
- A. It eliminates the need for public-private partnerships.
- B. It mandates compliance with all standards.
- C. It focuses solely on physical security regulations.
- D. It establishes a cyber crisis management structure.
Answer: D
Explanation:
The NIS2 Directive, an update to the European Union's cybersecurity directive, introduces several new requirements, including the establishment of a cyber crisis management framework at both national and EU levels. This is designed to coordinate effective responses to major cybersecurity incidents and crises. NIS2 goes beyond mandating compliance or focusing only on physical security and emphasizes collaboration between the public and private sectors.
Reference: NIS2 Directive (Directive (EU) 2022/2555), Articles 9-11, and official ENISA documentation.
NEW QUESTION # 92
What are the connections between security zones called?
Available Choices (select all choices that are correct)
- A. Pathways
- B. Firewalls
- C. Conduits
- D. Tunnels
Answer: C
Explanation:
According to the ISA/IEC 62443 standard, the connections between security zones are called conduits. A conduit is defined as a logical or physical grouping of communication channels connecting two or more zones that share common security requirements. A conduit can be used to control and monitor the data flow between zones, and to apply security measures such as encryption, authentication, filtering, or logging. A conduit can also be used to isolate zones from each other in case of a security breach or incident. A conduit can be implemented using various technologies, such as firewalls, routers, switches, cables, or wireless links.
However, these technologies are not synonymous with conduits, as they are only components of a conduit. A firewall, for example, can be used to create multiple conduits between different zones, or to protect a single zone fromexternal threats. Therefore, the other options (firewalls, tunnels, and pathways) are not correct names for the connections between security zones. References:
* ISA/IEC 62443-3-2:2016 - Security for industrial automation and control systems - Part 3-2: Security risk assessment and system design1
* ISA/IEC 62443-3-3:2013 - Security for industrial automation and control systems - Part 3-3: System security requirements and security levels2
* Zones and Conduits | Tofino Industrial Security Solution3
* Key Concepts of ISA/IEC 62443: Zones & Security Levels | Dragos4
NEW QUESTION # 93
What is the primary purpose of the NIST Cybersecurity Framework (CSF)?
- A. To enhance the resilience of critical infrastructure
- B. To replace existing cybersecurity standards
- C. To provide a certification program for organizations
- D. To create new cybersecurity technologies
Answer: A
Explanation:
The NIST Cybersecurity Framework (CSF) was developed to enhance the security and resilience of critical infrastructure in the United States by providing a flexible, repeatable, and cost-effective risk-based approach to managing cybersecurity risk. It is designed to complement, not replace, existing standards and guidelines, and is intended for voluntary adoption by critical infrastructure organizations.
Reference: ISA/IEC 62443-1-1:2007, Section 4.2.7; NIST CSF Framework Core, "Purpose and Scope" (NIST CSF 1.1, Section 1.0).
NEW QUESTION # 94
......
Certification Training for ISA-IEC-62443 Exam Dumps Test Engine: https://exams4sure.actualcollection.com/ISA-IEC-62443-exam-questions.html