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| Section | Weight | Objectives |
|---|---|---|
| Security Fundamentals & ISA/IEC 62443 Framework | 20% | - Zones and conduits model - Structure and parts of ISA/IEC 62443 standards - Core security principles: CIA triad, defense-in-depth - Foundational security requirements |
| Access Control & Identity Management | 15% | - User authentication and authorization - Security policies and procedures - Role-based access control |
| Industrial Automation and Control Systems (IACS) Overview | 15% | - Differences between IT and OT security - Cybersecurity importance in industrial environments - IACS components, architectures and protocols |
| Security Operations & Incident Response | 20% | - Cybersecurity Management System (CSMS) - Incident handling and response processes - Monitoring, maintenance and continuous improvement |
| Industrial Network Security | 30% | - Threats, vulnerabilities and risk assessment - Network segmentation and security architecture - Industrial protocols security |
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NEW QUESTION # 120
Multiuser accounts and shared passwords inherently carry which of the followinq risks?
Available Choices (select all choices that are correct)
Answer: A,B
Explanation:
Multiuser accounts and shared passwords are accounts and passwords that are used by more than one person to access a system or a resource. They inherently carry the risk of unauthorized access, which means that someone who is not authorized or intended to use the account or password can gain access to the system or resource, and potentially compromise its confidentiality, integrity, or availability. For example, if a multiuser account and password are shared among several operators of an industrial automation and control system (IACS), an attacker who obtains the password can use the account to access the IACS and perform malicious actions, such as changing the system settings, deleting data, or disrupting the process. Multiuser accounts and shared passwords also make it difficult to track and audit the activities of individual users, and to enforce the principle of least privilege, which states that users should only have the minimum level of access required to perform their tasks. Therefore, the ISA/IEC 62443 standards recommend avoiding the use of multiuser accounts and shared passwords, and instead using individual accounts and strong passwords for each user, and implementing authentication and authorization mechanisms to control the access to the IACS. 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 62443-2-1:2009 - Security for industrial automation and control systems - Part 2-1: Establishing an industrial automation and control systems security program2 ISA/IEC 62443 Cybersecurity Fundamentals Specialist Training Course3 Shared passwords and multiuser accounts pose specific risks, notably unauthorized access and privilege escalation. In ISA/IEC 62443's framework, these practices are discouraged because they complicate the attribution of actions to individual users and increase the likelihood that accounts can be used beyond their intended scope. Unauthorized access occurs when individuals exploit the shared nature of an account to gain entry to systems or data that they should not access. Privilege escalation can happen when users leverage shared accounts to perform actions at higher permission levels than those assigned to their personal accounts.
Conversely, buffer overflows and race conditions are types of vulnerabilities or programming errors, not directly associated with the risks of multiuser accounts or shared passwords.
NEW QUESTION # 121
Which of the following is NOT a strategy for deploying a WAN?
Answer: D
Explanation:
A Local Area Network (LAN) is not a strategy for deploying a Wide Area Network (WAN). WAN deployment strategies include using the public Internet, private enterprise WANs, or carrier-managed WANs.
LANs, by definition, serve local, not wide-area, connectivity. ISA/IEC 62443 standards refer to different strategies for extending network communications over broader geographic regions, but do not classify LAN as a WAN deployment option.
Reference: ISA/IEC 62443-3-3:2013, Section 4.2.3.4 ("Communications network technologies"); Glossary definitions for LAN and WAN.
NEW QUESTION # 122
Which term refers to legally enforceable rules created by government bodies or authorized organizations?
Answer: B
Explanation:
In cybersecurity governance, the term regulations refers to legally binding and enforceable rules that are established by government authorities or regulatory agencies. These differ from standards (which are often voluntary) and frameworks (which offer guidance).
"Regulations are legal requirements issued by government entities and must be followed. Noncompliance can result in legal penalties, fines, or operational restrictions."
- ISA/IEC 62443-1-1:2007, Glossary and Definitions
ISA/IEC 62443 standards are often used to support compliance with regulations but are themselves not regulations unless adopted into law.
References:
ISA/IEC 62443-1-1:2007 - Glossary: "Regulation"
ISA/IEC 62443-2-1 - Section on Regulatory Compliance
NEW QUESTION # 123
What does the expression SL-T (BPCS Zone) vector {2 2 0 1 3 1 3} represent?
Answer: C
Explanation:
The SL-T (BPCS Zone) vector {2 2 0 1 3 1 3} represents the Target Security Level (SL-T) across each of the seven Foundational Requirements (FRs) in ISA/IEC 62443-3-3.
Each number in the vector corresponds to a security level (0-4) assigned to a particular FR, as follows:
FR1 - Identification & Authentication Control (IAC): 2
FR2 - Use Control (UC): 2
FR3 - System Integrity (SI): 0
FR4 - Data Confidentiality (DC): 1
FR5 - Restricted Data Flow (RDF): 3
FR6 - Timely Response to Events (TRE): 1
FR7 - Resource Availability (RA): 3
"Security levels are represented as vectors of seven values, each corresponding to the target security level for a foundational requirement (FR)."
- ISA/IEC 62443-3-3:2013, Annex A - SL Vector Format
This allows zone-specific tailoring based on risk - some FRs may require SL 3, others SL 0, depending on system criticality and exposure.
References:
ISA/IEC 62443-3-3:2013 - Annex A
ISA/IEC 62443-3-2 - SL-T Vector usage in risk assessment
NEW QUESTION # 124
A manufacturing plant is developing a cybersecurity plan for its IACS that must evolve as new threats emerge and system changes occur. Which document should serve as the foundation for this evolving security approach?
Answer: C
Explanation:
The Security Program (SP) portfolio is the correct foundational document for an evolving IACS cybersecurity approach according to the ISA/IEC 62443 family of standards. ISA/IEC 62443 is explicitly designed around the concept of continuous risk management and lifecycle-based cybersecurity, rather than static or one-time security implementations.
Step 1: Role of the Security Program (SP)
ISA/IEC 62443-2-1 defines the requirements for establishing, implementing, maintaining, and continuously improving an IACS Cybersecurity Management System. The Security Program provides organizational governance through policies, roles, responsibilities, procedures, training, incident handling, change management, and continuous improvement activities. These elements ensure cybersecurity adapts as threats, vulnerabilities, and system configurations evolve.
Step 2: Need for an evolving security approach
The standard recognizes that IACS environments are long-lived and subject to changing operational conditions, emerging threat actors, and new vulnerabilities. Therefore, cybersecurity must be managed as an ongoing process. The SP portfolio enables periodic reassessment of risks, updates to controls, and improvements to security processes throughout the system lifecycle.
Step 3: Relationship between SP and SPS
IEC 62443-2-2 introduces the Security Protection Scheme (SPS), which is a documented set of technical, procedural, and physical security measures selected to mitigate identified risks. However, the SPS is not the foundation; it is a product of the Security Program. The SP governs how the SPS is developed, implemented, operated, and modified over time.
Step 4: Elimination of incorrect options
* "IEC 62443-2-2 only" is insufficient because it addresses SPS development without broader governance.
* Corporate KPIs unrelated to IACS do not manage cybersecurity risk.
* An SPS alone cannot evolve without programmatic oversight.
In alignment with the intent and structure of ISA/IEC 62443, the Security Program (SP) portfolio is the correct foundation for a cybersecurity plan that must continuously evolve.
NEW QUESTION # 125
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