CyberCertPrepOT Security FundamentalsOT Fundamentals: ICS/SCADA BasicsEASYFree question
A SCADA database that timestamps and archives tag values over months and years so analysts can trend production and investigate incidents is known as a(n):
- A.Front-end processor
- B.Engineering workstation
- C.Historian
- D.Remote terminal unit
Why C is correct
A process historian is a specialized time-series database that records tag values with timestamps for long-term trending, reporting, and forensic review. It is distinct from the real-time control databases that drive moment-to-moment operations.
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