The correct answer is:
B. Modbus
Explanation:
Modbus is a common industrial protocol with the following characteristics:
No Authentication/Security: Modbus does not provide native authentication or encryption mechanisms, making it inherently insecure by design.
Client/Server Relationship: Modbus typically follows a client/server (or master/slave) model, where the client (master) sends requests to the server (slave), and the server responds.
Implemented as RTU or TCP/IP: Modbus can be implemented in two primary formats: Modbus RTU (Remote Terminal Unit), which uses serial communication, or Modbus TCP/IP, which is used over IP networks.
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snowmaggedon
Highly Voted 8 months ago