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A common industrial protocol has the following characteristics: - Provides for no authentication/security - Is often implemented in a client/server relationship - Is implemented as either RTU or TCP/IP Which of the following is being described?
Correct Answer: B
The protocol described is Modbus, which is a commonly used industrial protocol that lacks built-in authentication and security features. Modbus operates in a client/server model and can be implemented over RTU (Remote Terminal Unit) or TCP/IP for communication between devices. The other protocols mentioned either have different characteristics or are used in different contexts (such as Profinet for industrial automation, Zigbee for wireless IoT devices, and Z-Wave for home automation).