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| Section | Weight | Objectives |
|---|---|---|
| Security Operations & Incident Response | 20% | - Incident handling and response processes - Cybersecurity Management System (CSMS) - Monitoring, maintenance and continuous improvement |
| Access Control & Identity Management | 15% | - Role-based access control - Security policies and procedures - User authentication and authorization |
| Industrial Network Security | 30% | - Network segmentation and security architecture - Industrial protocols security - Threats, vulnerabilities and risk assessment |
| Industrial Automation and Control Systems (IACS) Overview | 15% | - IACS components, architectures and protocols - Differences between IT and OT security - Cybersecurity importance in industrial environments |
| Security Fundamentals & ISA/IEC 62443 Framework | 20% | - Zones and conduits model - Foundational security requirements - Structure and parts of ISA/IEC 62443 standards - Core security principles: CIA triad, defense-in-depth |
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NEW QUESTION # 54
Electronic security, as defined in ANSI/ISA-99.00.01:2007. includes which of the following?
Available Choices (select all choices that are correct)
Answer: B,D
Explanation:
In ANSI/ISA-99.00.01:2007, which is part of the ISA/IEC 62443 standards, electronic security encompasses both the technical and human aspects of cybersecurity within industrial automated and control systems (IACS). Option B correctly highlights components such as computers, networks, operating systems, applications, and other programmable configurable components which are intrinsic to the system's electronic security framework. Option C is also correct as it includes the personnel, policies, andprocedures which play a crucial role in securing these systems. This emphasizes that security is not only about the technological solutions but also about managing human elements and organizational processes effectively.ISA/IEC 62443 Cybersecurity Fundamentals References:
* ISA/IEC 62443 standards focus on the holistic nature of security which is clearly supported by including both the technological (Option B) and human elements (Option C) in the definition of electronic security.
NEW QUESTION # 55
What does the expression SL-T (BPCS Zone) vector {2 2 0 1 3 1 3} represent?
Answer: B
Explanation:
ISA/IEC 62443 defines Security Level vectors to express Target Security Levels across the seven Foundational Requirements (FRs).
Step 1: SL-T definition
SL-T represents the Target Security Level determined from risk assessment.
Step 2: Vector meaning
Each number in the vector corresponds to the required SL for a specific FR (IAC, UC, SI, DC, RDF, TRE, RA).
Step 3: Zone-specific application
The vector is applied to a defined zone (e.g., BPCS), allowing granular security specification.
Thus, the vector represents SL values for a specific zone's foundational requirements.
NEW QUESTION # 56
Which is a commonly used protocol for managing secure data transmission on the Internet?
Available Choices (select all choices that are correct)
Answer: A,B
Explanation:
Datagram Transport Layer Security (DTLS) and Secure Sockets Layer (SSL) are both commonly used protocols for managing secure data transmission on the Internet. DTLS is a variant of SSL that is designed to work over datagram protocols such as UDP, which are used for real-time applications such as voice and video. SSL is a protocol that provides encryption, authentication, and integrity for data transmitted over TCP, which is used for reliable and ordered delivery of data. Both DTLS and SSL use certificates and asymmetric cryptography to establish a secure session between the communicating parties, and then use symmetric cryptography to encrypt the data exchanged. DTLS and SSL are widely used in web browsers, email clients, VPNs, and other applications that require secure communication over the Internet. References:
* ISA/IEC 62443 Standards to Secure Your Industrial Control System, Module 3: Introduction to Cryptography, pages 3-5 to 3-7
* Using the ISA/IEC 62443 Standards to Secure Your Control System, Chapter 6: Securing Communications, pages 125-126
NEW QUESTION # 57
What do packet filter firewalls examine?
Available Choices (select all choices that are correct)
Answer: D
Explanation:
Packet filter firewalls, as defined by ISA/IEC 62443 standards on cybersecurity, primarily examine the source, destination, and ports in the header of each packet. This type of firewall does not inspect the packet content deeply (such as its structure or sequence) or maintain awareness of the relationships between packets in a session. Instead, it operates at a more superficial level, filtering packets based solely on IP addresses and TCP/UDP ports. This approach allows packet filter firewalls to quickly process and either accept or block packets based on these predefined criteria without delving into the complexities of session management or the content of the packets up to the application layer.
NEW QUESTION # 58
What is Modbus?
Answer: A
Explanation:
Modbus is a serial communications protocol originally published by Modicon (now Schneider Electric) in
1979 for use with its programmable logic controllers (PLCs). It has become a de facto standard protocol for communication between industrial electronic devices. Modbus allows devices, such as sensors and instruments, to communicate their data to a controller or computer. The protocol can operate over serial lines (RS-232, RS-485) and has been extended for TCP/IP networks (Modbus TCP). It is not a programming language, network security standard, or a type of industrial machinery. Its simplicity and open nature have made it widespread in industrial environments, but it has minimal built-in security, which is a significant consideration in cybersecurity for industrial control systems.
Reference: ISA/IEC 62443-3-3:2013, Section 4.2.3, and ISA-62443-1-1:2007, Section 3.2.1.
NEW QUESTION # 59
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