ISA/IEC 62443 Cybersecurity Fundamentals Specialist — Question 65

Which of the following is the underlying protocol for Ethernet/IP?

Answer options

• A. Building Automation and Control Network (BACnet)
• B. Common Industrial Protocol (CIP)
• C. Highway Addressable Remote Transducer (HART)
• D. Object Linking and Embedding (OLE) for Process Control (OPC)

Correct answer: B

Explanation

The correct answer is B, as the Common Industrial Protocol (CIP) is specifically designed to provide a framework for industrial automation applications, which Ethernet/IP utilizes. The other options, while relevant in their own contexts, do not serve as the underlying protocol for Ethernet/IP.