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| Section | Objectives |
|---|---|
| Industrial Network and System Security | - Network segmentation and architecture security - Asset identification and protection |
| Introduction to Industrial Cybersecurity | - Fundamentals of cybersecurity in industrial environments - Overview of IT vs OT security concepts |
| ISA/IEC 62443 Framework Overview | - Structure and purpose of IEC 62443 standards - Key terminology and concepts (zones, conduits, security levels) |
| Policies, Procedures, and Governance | - Compliance and governance considerations - Security policies for industrial control systems |
| Risk and Security Management | - Risk assessment principles - Security lifecycle management in industrial systems |
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問題 #199
After receiving an approved patch from the JACS vendor, what is BEST practice for the asset owner to follow?
答案：D
解題說明：
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
問題 #200
Which of the following protocols is mentioned as being commonly used in control systems?
答案：B
解題說明：
Modbus TCP is a widely used protocol in industrial control systems, enabling communication between devices such as PLCs and SCADA systems over Ethernet networks. It is an adaptation of the classic Modbus protocol to TCP/IP networks and is explicitly referenced in ISA/IEC 62443 documentation as a common protocol for IACS communications. FTP, HTTP, and SMTP are general IT protocols and not primarily associated with industrial control communications.
Reference: ISA/IEC 62443-3-3:2013, Annex D; ISA/IEC 62443-1-1:2007, Section 3.2.1.
問題 #201
What is the primary goal of the Assess phase in the IACS Cybersecurity Lifecycle?
答案：A
解題說明：
In the Assess phase of the IACS Cybersecurity Lifecycle (as defined in ISA/IEC 62443-2-1 and 62443-3-2), the main objective is to identify assets, analyze risks, and assign a Target Security Level (SL-T) for each zone or conduit. This sets the foundation for design and implementation decisions. Achieving or verifying the SL- A (Achieved Security Level) occurs later in the lifecycle, after implementation.
Reference: ISA/IEC 62443-2-1:2009, Section 5.2; ISA/IEC 62443-3-2:2020, Section 5 ("Risk assessment and SL-T assignment").
問題 #202
Using the risk matrix below, what is the risk of a medium likelihood event with high consequence?
答案：D
解題說明：
According to the ISA/IEC 62443 Cybersecurity Fundamentals, the risk matrix is a tool used to assess the risk of a particular event. The risk matrix is divided into three categories: likelihood, consequence, and risk. The likelihood is the probability that an event will occur, the consequence is the impact that the event will have, and the risk is the combination of the two. In this case, the risk of a medium likelihood event with high consequence is a high risk, as shown by the red cell in the matrix. References:
* ISA/IEC 62443 Cybersecurity Fundamentals
* [ISA/IEC 62443 Cybersecurity Certificate Program]
* [Cybersecurity Library]
* [Using the ISA/IEC 62443 Standard to Secure Your Control Systems]
問題 #203
Which of the following is an element of security policy, organization, and awareness?
Available Choices (select all choices that are correct)
答案：D
解題說明：
According to the ISA/IEC 62443-2-1 standard, security policy, organization, and awareness is one of the four foundational requirements for an IACS security management system. It defines the "policies, procedures, and organizational structure necessary to support the security program" 1. One of the elements of this requirement is staff training and security awareness, which involves "providing appropriate security education and training to all personnel who have access to or are responsible for IACS components" 1. This element aims to ensure that the staff are aware of the security risks, policies, and procedures, and are able to perform their roles and responsibilities in a secure manner. Staff training and security awareness can include topics such as security principles, threats and vulnerabilities, incident response, password management, physical security, and social engineering 2. References:
* ISA/IEC 62443 Series of Standards - ISA
* Security of Industrial Automation and Control Systems - ISAGCA
問題 #204
......
ISA-IEC-62443 認證可代表豐富且多樣化的工作角色及責任。因此，取得特定的認證將可做為具備成功執行重要IT功能所需之能力的最佳證明。由於受到全世界企業專家的熱烈支持，ISA-IEC-62443 認證仍是達到長期事業目標的最有效率的方法之一，並且是公司用來開發及留住重要IT人員的不二法門。但是如何在第一次嘗試中就能有效的通過ISA 的 ISA-IEC-62443 認證考試？這個問題的答案隨著 VCESoft 產生已經不再是問題了。
ISA-IEC-62443考試資訊: https://www.vcesoft.com/ISA-IEC-62443-pdf.html
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