QuestionQ58

ICS Components & Architecture

What type of data might be stored on a historian?

  • A Information needed for billing customers
  • B Information for supervising lower-level controllers in real-time
  • C Diagrams depicting an overview of the process
  • D Runtime libraries that software programs use
Explanation

A historian retains collected data over time for later reporting and analysis, including information that can support customer billing. Real-time controller supervision is a SCADA/HMI function, process-overview diagrams are HMI visualization assets, and runtime libraries are software components.

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