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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Industrial Automation and Control Systems (IACS) Overview | 15% | - Differences between IT and OT security - IACS components, architectures and protocols - Cybersecurity importance in industrial environments |
| Topic 2: Access Control & Identity Management | 15% | - Security policies and procedures - Role-based access control - User authentication and authorization |
| Topic 3: Security Fundamentals & ISA/IEC 62443 Framework | 20% | - Structure and parts of ISA/IEC 62443 standards - Foundational security requirements - Zones and conduits model - Core security principles: CIA triad, defense-in-depth |
| Topic 4: Industrial Network Security | 30% | - Threats, vulnerabilities and risk assessment - Industrial protocols security - Network segmentation and security architecture |
| Topic 5: Security Operations & Incident Response | 20% | - Incident handling and response processes - Monitoring, maintenance and continuous improvement - Cybersecurity Management System (CSMS) |
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NEW QUESTION # 78
Which analysis method is MOST frequently used as an input to a security risk assessment?
Available Choices (select all choices that are correct)
Answer: A
Explanation:
A Process Hazard Analysis (PHA) is a systematic and structured method of identifying and evaluating the potential hazards and risks associated with an industrial process. A PHA can help to identify the possible causes and consequences of undesired events, such as equipment failures, human errors, cyberattacks, natural disasters, etc. A PHA can also provide recommendations for reducing the likelihood and severity of such events, as well as improving the safety and security of the process. A PHA is one of the most frequently used analysis methods as an input to a security risk assessment, as it can help to identify the assets, threats, vulnerabilities, and impacts related to the process, and provide a basis for determining the security risk level and the appropriate security countermeasures. A PHA is also a requirement of the ISA/IEC 62443 standard, as part of the security program development and implementation phase12. References: 1: ISA/IEC 62443-2-1:
Security for industrial automation and control systems: Establishing an industrial automation and control systems security program 2: ISA/IEC 62443-3-2: Security for industrial automation and control systems:
Security risk assessment for system design
NEW QUESTION # 79
Which U.S. Department is responsible for the Chemical Facility Anti-Terrorism Standards (CFATS)?
Answer: A
Explanation:
The Chemical Facility Anti-Terrorism Standards (CFATS) are managed and enforced by the U.S. Department of Homeland Security (DHS), specifically through the Cybersecurity and Infrastructure Security Agency (CISA).
"CFATS is a DHS regulatory program focused on security at high-risk chemical facilities to prevent terrorist exploitation of chemicals of interest."
- Department of Homeland Security, CFATS Program Overview
These standards require facilities to perform vulnerability assessments and implement site security plans, aligning with principles from frameworks like ISA/IEC 62443.
References:
DHS - CFATS Program Summary
ISA/IEC 62443-2-1 - Alignment with U.S. regulatory programs
NEW QUESTION # 80
Which is an important difference between IT systems and IACS?
Available Choices (select all choices that are correct)
Answer: A,C
NEW QUESTION # 81
Multiuser accounts and shared passwords inherently carry which of the followinq risks?
Available Choices (select all choices that are correct)
Answer: C
NEW QUESTION # 82
Which of the following are the critical variables related to access control?
Available Choices (select all choices that are correct)
Answer: A
Explanation:
Access control is the process of granting or denying specific requests to obtain and use information and related information processing services. 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
62443-3-3 standard, access control includes the following system requirements (SRs):
* SR 1.1: Identification and authentication control
* SR 1.2: Use control
* SR 1.3: System integrity
* SR 1.4: Data confidentiality
* SR 1.5: Restricted data flow
* SR 1.6: Timely response to events
* SR 1.7: Resource availability
Among these SRs, the ones that are most related to the critical variables of account management and password strength are SR 1.1 and SR 1.2. SR 1.1 requires that the IACS shall provide the capability to uniquely identify and authenticate all users, processes, and devices that attempt to establish a logical connection to the system.
This means that the IACS should have a robust account management system that can create, modify, delete, and monitor user accounts and their privileges. It also means that the IACS should enforce strong password policies that can prevent unauthorized access or compromise of user credentials. Password strength refers to the level of difficulty for an attacker to guess or crack a password. It depends on factors such as length, complexity, randomness, and uniqueness of the password.
SR 1.2 requires that the IACS shall provide the capability to enforce the use of logical connections in accordance with the security policy of the organization. This means that the IACS should have a mechanism to control the access rights and permissions of users, processes, and devices based on their roles, responsibilities, and needs. It also means that the IACS should have a mechanism to audit and log the activities and events related to access control, such as successful or failed login attempts, password changes, privilege escalations, or unauthorized actions.
Therefore, account management and password strength are the critical variables related to access control, as they directly affect the identification, authentication, and authorization of users, processes, and devices in 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 Cybersecurity Fundamentals Specialist Certificate Program2
* ISA/IEC 62443 Cybersecurity Library3
* Using the ISA/IEC 62443 Standards to Secure Your Control Systems4
NEW QUESTION # 83
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