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| Section | Objectives |
|---|---|
| Topic 1: Addressing Risk with Security Policy, Organization, and Awareness | - Security policies and procedures - Organizational security roles and responsibilities - Security awareness and training |
| Topic 2: Risk Analysis | - Risk and vulnerability analysis techniques - Risk management fundamentals - Cybersecurity risk assessment concepts |
| Topic 3: Addressing Risk with Implementation Measures | - Access control principles - Defense-in-depth strategy - Zones and conduits model - Industrial network architecture and segmentation |
| Topic 4: Addressing Risk with Selected Security Counter Measures | - Patch management - Virtual Private Networks (VPNs) - Firewalls and network security devices - Anti-virus and endpoint protection |
| Topic 5: Understanding the Current Industrial Security Environment | - Current state of industrial control systems security - Convergence of IT and OT - Security challenges in OT environments |
| Topic 6: Monitoring and Improving the CSMS | - Security lifecycle management - Continuous monitoring of IACS cybersecurity - Incident detection and response |
| Topic 7: Validating or Verifying the Security of Systems | - Continuous improvement of security measures - Security validation and verification techniques - Auditing and compliance |
| Topic 8: How Cyberattacks Happen | - Vulnerabilities in industrial systems - Case studies of industrial cyber incidents - Cyber threats and attack vectors |
| Topic 9: Creating A Security Program | - Developing a long-term security program - Security management organization - Defining information security policy |
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NEW QUESTION # 204
Whose responsibility is it to determine the level of risk an organization is willing to tolerate?
Available Choices (select all choices that are correct)
Answer: C
NEW QUESTION # 205
What is the purpose of ICS-CERT Alerts?
Answer: A
Explanation:
ICS-CERT (Industrial Control Systems Cyber Emergency Response Team) Alerts are official notifications intended to inform owners and operators of critical infrastructure about vulnerabilities, threats, or incidents relevant to industrial control systems. Their primary purpose is to provide actionable information so that organizations can take necessary steps to protect their IACS environments from evolving cyber risks. While alerts may cover sector-specific threats (including energy), their main audience is critical infrastructure owners and operators.
Reference: ISA/IEC 62443-2-1:2009, Section 6.2.6 ("Incident response and reporting"); CISA ICS-CERT Mission Statement (https://www.cisa.gov/ics).
NEW QUESTION # 206
What is the formula for calculating risk?
Answer: C
Explanation:
The formula for risk in ISA/IEC 62443 is typically expressed as:
Risk = Threat × Vulnerability × Consequence
This means that risk is a product of the likelihood that a threat will exploit a vulnerability and the impact (consequence) if that event occurs. This formula is consistently used in both the general information security domain and explicitly referenced in the ISA/IEC 62443-3-2 standard in the context of IACS risk assessments.
Reference: ISA/IEC 62443-3-2:2020, Section 5.2 ("Risk is typically calculated as Threat × Vulnerability × Consequence"); ISA/IEC 62443-2-1:2009, Section 5.2.4.
NEW QUESTION # 207
Which of the following is NOT a general class of firewalls?
Answer: D
Explanation:
The three general classes of firewalls are:
Packet Filtering Firewalls - Basic filters based on IPs, ports, protocols Stateful Inspection Firewalls - Track active connections and session state Application Proxy Firewalls - Act as intermediaries at the application layer
"Network inspection" is not a standard firewall classification, but rather a general term that may refer to DPI (Deep Packet Inspection) or NIDS (Network Intrusion Detection Systems).
"Firewall technologies are typically classified into packet filtering, stateful inspection, and application proxy types."
- ISA/IEC 62443-3-3:2013, SR 5.1 - Zone Boundary Protection
References:
ISA/IEC 62443-3-3:2013 - Clause SR 5.1
NIST SP 800-41 - Guidelines on Firewalls and Firewall Policy
NEW QUESTION # 208
What is Modbus?
Answer: B
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 # 209
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