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| Section | Objectives |
|---|---|
| Industrial Control Systems Security Fundamentals | - ICS/SCADA architectures and components
|
| Industrial Security Architecture and Defense | - Defensive architectures
|
| Incident Response and Operational Security | - Operational continuity and safety
|
| Industrial Cybersecurity Risk and Vulnerability Management | - Threat modeling in OT environments
|
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問題 #63
An engineer has analyzed a subsystem of a power plant and identified physical and logical inputs that could expose the subsystem to unauthorized access. What has the engineer defined?
答案：C
解題說明：
By identifying all the points where a system could be accessed or attacked (physical or logical), the engineer has defined the attack surface (B).
A vulnerability scan (A) is an automated tool-based assessment.
A risk analysis (C) evaluates the likelihood and impact of threats.
A threat model (D) outlines potential threat actors and attack paths but not specifically all input points.
Understanding the attack surface is critical to designing effective ICS security controls, as emphasized in GICSP.
Reference:
GICSP Official Study Guide, Domain: ICS Risk Management
GICSP Training on Threat Modeling and Vulnerability Assessment
NIST SP 800-30 (Risk Assessment Guide)
問題 #64
Which of the following types of network devices sends traffic only to the intended recipient node?
答案：C
解題說明：
An Ethernet switch (C) is a network device that learns the MAC addresses of connected devices and forwards packets only to the port associated with the destination node, reducing unnecessary traffic and improving security and efficiency.
An Ethernet hub (A) broadcasts incoming packets to all ports, not selectively.
A wireless access point (B) broadcasts signals to multiple wireless clients within range.
A wireless bridge (D) connects two network segments wirelessly but forwards traffic according to device types, not necessarily selectively to single nodes.
GICSP's ICS network segmentation and architecture domain underline the use of switches to limit broadcast traffic and reduce attack surfaces.
Reference:
GICSP Official Study Guide, Domain: ICS Security Architecture & Design
NIST SP 800-82 Rev 2, Section 5.5 (Network Architecture)
GICSP Training on Network Devices and Traffic Management
問題 #65
Which document should be updated to include incident handling while in the Planning phase of incident response?
答案：D
解題說明：
The Disaster Recovery Plan (DRP) (A) is the document that should incorporate incident handling procedures during the planning phase. It details how to respond to and recover from incidents to restore normal operations.
Access control policy (B) governs permissions.
Backup policy (C) describes data backup processes but not incident handling.
Vulnerability report (D) is an assessment document, not a procedural plan.
GICSP underscores integrating incident response within disaster recovery planning to ensure comprehensive preparedness.
Reference:
GICSP Official Study Guide, Domain: ICS Security Operations & Incident Response NIST SP 800-34 Rev 1 (Contingency Planning) GICSP Training on Incident Response and Recovery Planning
問題 #66
During a plant upgrade an architect needs to connect legacy lEDs to a new TCP/IP instrumentation LAN. The lEDs only have RS-232 communication interfaces available. What would best be used to connect the lEDs?
答案：D
解題說明：
Legacy devices using RS-232 interfaces require a communications gateway (C) to translate between the serial communication protocol and the new TCP/IP network.
A data diode (A) is a unidirectional security device, not a protocol translator.
An engineering workstation (B) is a computer, not a protocol conversion device.
An industrial switch (D) operates at the Ethernet layer and does not perform protocol conversion.
GICSP emphasizes gateways as essential for integrating legacy ICS devices into modern IP networks while maintaining protocol integrity.
Reference:
GICSP Official Study Guide, Domain: ICS Fundamentals & Architecture
NIST SP 800-82 Rev 2, Section 3.4 (Legacy Protocol Integration)
GICSP Training on ICS Network Architecture and Protocols
問題 #67
What is one of the main challenges of integrating threat intelligence into ICS environments?
Response:
答案：A
問題 #68
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