CyberCertPrepOT Security FundamentalsOT Fundamentals: Network Architecture & ProtocolsEASYFree question
Within the Purdue Enterprise Reference Architecture, which level corresponds to basic control devices such as PLCs, RTUs, and DCS controllers that directly drive the process?
- A.Level 1
- B.Level 0
- C.Level 2
- D.Level 3
Why A is correct
Level 1 contains the basic control equipment (PLCs, RTUs, controllers) that read sensors and command actuators. Level 0 is the physical process (sensors/actuators), while Level 2 holds supervisory HMIs and SCADA.
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