CyberCertPrepOT Security FundamentalsOT Fundamentals: ICS/SCADA BasicsEASYFree question
Engineers need to trend flow readings from the past three years for a compliance report. Which component stores that time-series process data?
- A.A safety relay panel
- B.A network time server
- C.A process historian server
- D.A loop controller card
Why C is correct
A historian collects tag values with timestamps over long periods and serves them for trending and reporting. A loop controller regulates one variable, a safety relay trips on faults and a time server only distributes clock signals.
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