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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Security Operations & Incident Response | 20% | - Cybersecurity Management System (CSMS) - Monitoring, maintenance and continuous improvement - Incident handling and response processes |
| Topic 2: Industrial Automation and Control Systems (IACS) Overview | 15% | - IACS components, architectures and protocols - Differences between IT and OT security - Cybersecurity importance in industrial environments |
| Topic 3: Industrial Network Security | 30% | - Threats, vulnerabilities and risk assessment - Industrial protocols security - Network segmentation and security architecture |
| Topic 4: Access Control & Identity Management | 15% | - Security policies and procedures - User authentication and authorization - Role-based access control |
| Topic 5: Security Fundamentals & ISA/IEC 62443 Framework | 20% | - Core security principles: CIA triad, defense-in-depth - Structure and parts of ISA/IEC 62443 standards - Zones and conduits model - Foundational security requirements |
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138. Frage
Which layer specifies the rules for Modbus Application Protocol
Available Choices (select all choices that are correct)
Antwort: C
139. Frage
In an IACS system, a typical security conduit consists of which of the following assets?
Available Choices (select all choices that are correct)
Antwort: A
Begründung:
A security conduit is a logical or physical grouping of communication channels connecting two or more zones that share common security requirements1. A zone is a grouping of systems and components based on their functional, logical, and physical relationship that share common security requirements1. Therefore, a security conduit consists of assets that enable or facilitatecommunication between zones, such as wiring, routers, switches, and network management devices. Controllers, sensors, transmitters, and final control elements are examples of assets that belong to a zone, not a conduit. Ferrous, thickwall, and threaded conduit including raceways are physical structures that may enclose or protect wiring, but they are not part of the communication channels themselves. Power lines, cabinet enclosures, and protective grounds are also not part of the communication channels, but rather provide power or protection to the assets in a zone or a conduit. References: 1: Key Concepts of ISA/IEC 62443: Zones & Security Levels | Dragos
140. Frage
Security Levels (SLs) are broken down into which three types?
Available Choices (select all choices that are correct)
Antwort: D
141. Frage
Which protocol is commonly used for managing the security of message transmission on the Internet via web browsers?
Antwort: C
Begründung:
Transport Layer Security (TLS) is the primary cryptographic protocol used to secure web-based communications such as HTTPS in web browsers.
From ISA/IEC 62443-3-3 (System Security Requirements and Security Levels), Annex B:
"TLS provides confidentiality, integrity, and authentication for communications over untrusted networks. It is commonly used to secure HTTPS, SMTP, and other application protocols." TLS superseded SSL and is the backbone of secure data transmission over the Internet.
Incorrect Options:
B). L2TP - Used for VPNs; not typically browser-related.
C). PPTP - An older VPN protocol, not used for browser encryption.
D). IPsec - Used to secure IP traffic at the network layer; not directly used in browser-based communication.
References:
ISA/IEC 62443-3-3:2013 - "System Security Requirements and Security Levels" NIST SP 800-52 (supports use of TLS in government systems) ISA/IEC 62443 Study Guide
142. Frage
If a U.S. federal agency must comply with mandatory cybersecurity requirements under law, which document would they be required to follow?
Antwort: B
Begründung:
For U.S. federal agencies, mandatory cybersecurity requirements under law are established through Federal Information Processing Standards (FIPS). FIPS are issued by the U.S. government and are legally enforceable for federal agencies and contractors when specified by statute or regulation. This legal enforceability distinguishes FIPS from voluntary standards and frameworks.
Step 1: Understand the legal nature of FIPS
FIPS are developed under U.S. law to define minimum security requirements for federal information systems.
When a federal agency operates or procures information systems, compliance with applicable FIPS is mandatory. This makes FIPS a legal obligation rather than a best-practice recommendation.
Step 2: Differentiate standards vs regulations
ISA/IEC 62443 is an international consensus-based standard intended primarily for industrial automation and control systems. While widely adopted and referenced by regulators, it is not legally mandatory unless explicitly incorporated into law or contracts. Therefore, it does not satisfy the requirement "under law" by itself.
Step 3: Eliminate incorrect options
* The EU Cyber Resilience Act applies to products placed on the European Union market and has no jurisdiction over U.S. federal agencies.
* NIST SP 800-171 provides requirements for protecting Controlled Unclassified Information (CUI) in non-federal systems, but it becomes mandatory only through contractual flow-downs, not directly as federal law.
Step 4: Align with ISA/IEC 62443 perspective
ISA/IEC 62443 acknowledges that regulatory and legal obligations override voluntary standards. Asset owners must comply with applicable laws first, then apply ISA/IEC 62443 controls to meet industrial cybersecurity objectives.
Thus, for a U.S. federal agency facing mandatory cybersecurity requirements under law, NIST FIPS is the correct answer.
143. Frage
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