Exam GICSP Topic 1 Question 3 Discussion

Actual exam question for GIAC's GICSP exam
Question #: 3
Topic #: 1
What do the following protocols have in common?

Suggested Answer: B Vote an answer

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

by Mabel at Mar 09, 2026, 11:24 AM

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