Free PDF Quiz 2026 Reliable GICSP: Global Industrial Cyber Security Professional (GICSP) Test Review

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GIAC GICSP Exam Syllabus Topics:

SectionWeightObjectives
Topic 1: Industrial Control Systems (ICS) Security Fundamentals15%- ICS Communication Protocols
  • 1. PROFINET
  • 2. EtherNet/IP
  • 3. OPC
  • 4. Modbus
  • 5. DNP3
- ICS Architecture and Components
  • 1. Distributed Control Systems (DCS)
  • 2. Human Machine Interface (HMI)
  • 3. Programmable Logic Controllers (PLC)
  • 4. Supervisory Control and Data Acquisition (SCADA)
Topic 2: ICS Threats and Vulnerabilities25%- Common ICS Attack Vectors
  • 1. Malware targeting ICS
  • 2. Supply Chain Attacks
  • 3. Remote Access Vulnerabilities
- ICS-Specific Vulnerabilities
  • 1. Protocol Vulnerabilities
  • 2. Authentication Weaknesses
  • 3. Firmware Vulnerabilities
Topic 3: ICS Risk Management and Assessment20%- Security Controls Implementation
  • 1. Technical Controls
  • 2. Administrative Controls
  • 3. Physical Controls
- Risk Assessment Methodologies
  • 1. NIST SP 800-82 Guidelines
  • 2. Risk Assessment Frameworks
  • 3. IEC 62443 Standards
Topic 4: Incident Response and Recovery20%- Business Continuity and Disaster Recovery
  • 1. Backup and Restoration Procedures
  • 2. Testing and Validation
  • 3. System Redundancy
- ICS Incident Response
  • 1. Containment Strategies
  • 2. Eradication and Recovery
  • 3. Incident Detection and Analysis
Topic 5: ICS Network Security20%- Network Security Controls
  • 1. Network Monitoring and Anomaly Detection
  • 2. Firewalls and Access Control Lists
  • 3. Intrusion Detection/Prevention Systems
- Network Segmentation and Architecture
  • 1. Demilitarized Zones (DMZ)
  • 2. Zone and Conduit Model
  • 3. Purdue Enterprise Reference Architecture

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GIAC Global Industrial Cyber Security Professional (GICSP) Sample Questions (Q26-Q31):

NEW QUESTION # 26
Which of the following is typically performed during the Recovery phase of incident response?

Answer: C

Explanation:
The Recovery phase in incident response focuses on restoring systems to normal operations and strengthening defenses:
Patching and configuring systems to meet secure standards (B) is a typical recovery activity to prevent recurrence.
Updating security policies (A) is usually part of the Post-Incident Activities or Governance.
Root cause analysis (C) is typically part of the Investigation or Analysis phase.
Forensic imaging (D) is part of the Containment and Eradication phases for evidence preservation.
GICSP aligns recovery activities with system hardening and return to normal operations.
Reference:
GICSP Official Study Guide, Domain: ICS Security Operations & Incident Response NIST SP 800-61 Rev 2 (Incident Handling Guide) GICSP Training on Incident Response Lifecycle


NEW QUESTION # 27
You are tasked with securing a new Linux-based ICS system. Which of the following actions should be taken during the initial configuration to harden the endpoint?
(Select all that apply)
Response:

Answer: A,B,C


NEW QUESTION # 28
An attacker has a goal of obtaining information stored in an ICS. Why might the attacker focus his efforts on the operating system rather than the ICS application?

Answer: A

Explanation:
In ICS environments, attackers often target the operating system (OS) rather than the ICS application itself because the OS controls and supports the applications running on it. Gaining control over the OS gives attackers the capability to:
Access all files and data processed by applications
Install malware or tools that operate beneath or alongside ICS applications Manipulate or intercept data without detection While hardening guidance may exist for both OS and applications, the OS is a more fundamental layer and usually presents a broader attack surface. Therefore, controlling the OS (D) effectively provides access to all applications, making it a strategic target for attackers seeking sensitive information.
This approach aligns with the GICSP's focus on understanding layered defenses and attack vectors at all levels of the ICS stack, including the operating system.
Reference:
GICSP Official Study Guide, Domain: ICS Security Architecture & Design
NIST SP 800-82 Rev 2, Section 5.6 (System and Communication Protection) GICSP Training Module on OS Hardening and ICS Attack Vectors


NEW QUESTION # 29
What is a major advantage of using wireless communication in an ICS environment?
Response:

Answer: D


NEW QUESTION # 30
Why is it important to perform regular disaster recovery tests and drills in an ICS environment?
Response:

Answer: A


NEW QUESTION # 31
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