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GIAC GICSP Exam Syllabus Topics:

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

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GIAC Global Industrial Cyber Security Professional (GICSP) Sample Questions (Q21-Q26):

NEW QUESTION # 21
What do the following protocols have in common?

Answer: A

Explanation:
WirelessHART, ISA100.11a, and ZigBee are all wireless communication protocols commonly used in industrial automation and control systems. A key characteristic they share is:
They use RF (Radio Frequency) mesh networking (B) to enable devices to communicate through multiple hops, improving reliability and coverage. Mesh networks allow devices to relay messages, creating a robust wireless infrastructure.
Use of IPv6 (A) is specific to some protocols but not common to all three.
Asymmetric join methods (C) and tunneling legacy protocols (D) are not shared features of all three.
The GICSP materials emphasize mesh network topology as a key feature of these protocols in enabling reliable and secure wireless ICS communications.
Reference:
GICSP Official Study Guide, Domain: ICS Security Architecture & Design
WirelessHART, ISA100.11a, ZigBee Protocol Specifications
GICSP Training on Wireless ICS Protocols and Security


NEW QUESTION # 22
Which command can be used on a Linux system to search a file for a string of data and return the results to the screen?

Answer: B

Explanation:
Comprehensive and Detailed Explanation From Exact Extract:
The grep command (C) is a powerful and widely used Linux utility for searching text or data patterns within files and returning matching lines to the screen. It supports regular expressions, making it flexible for complex searches.
type (A) displays the kind of command (shell builtin, file, alias).
cat (B) outputs entire file contents but does not search.
tail (D) shows the last lines of a file but also does not perform searches.
In ICS security and forensic investigations (covered in GICSP), grep is essential for quickly finding relevant log entries or configuration data.
Reference:
GICSP Official Study Guide, Domain: ICS Security Operations & Incident Response Linux Command Line Basics (Referenced in GICSP) GICSP Training on Incident Response and Forensics Tools


NEW QUESTION # 23
What should be considered when implementing fieldbus protocols over an Ethernet network?

Answer: A

Explanation:
Fieldbus protocols are industrial communication standards used at lower levels of ICS networks. When these protocols are implemented over Ethernet, several considerations arise:
Different fieldbus protocols (such as Modbus TCP, PROFINET, EtherNet/IP) have unique data formats and communication methods.
To enable communication between devices using different protocols, a bridging device or gateway (D) is typically required to translate between protocol types.
Other options are incorrect because:
(A) Ethernet allows multiple hosts to communicate simultaneously.
(B) Different protocols can coexist on the same physical infrastructure using VLANs or other segmentation.
(C) Networks can and should be segmented into VLANs for security and performance.
GICSP covers these considerations in the ICS Security Architecture domain emphasizing protocol interoperability and network design.
Reference:
GICSP Official Study Guide, Domain: ICS Security Architecture & Design
NIST SP 800-82 Rev 2, Section 5.3 (Fieldbus and Ethernet Protocols)
GICSP Training on Network Protocols and ICS Interoperability


NEW QUESTION # 24
You have been tasked with securing an ICS endpoint running Windows. Which of the following hardening steps should you perform?
(Select all that apply)
Response:

Answer: A,B,C


NEW QUESTION # 25
Which of the following is a best practice when creating enforceable ICS security policies?
Response:

Answer: D


NEW QUESTION # 26
......

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