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ACCA Strategic Professional · Strategic Business Leader · Big data and data analytics

Kessan Airlines wants its engine-monitoring system to flag abnormal vibration within milliseconds so that engineers can act before a fault develops. Which characteristic of big data is most critical to this requirement?

Velocity is most critical. Velocity is the speed at which data is generated and must be processed. Flagging abnormal vibration within milliseconds depends on real-time capture and analysis, whereas volume, variety or value do not address the urgency of the requirement.

  1. AVelocity, because data must be captured and processed at the speed it is generatedCorrect
  2. BVariety, because engines produce different data types
  3. CVolume, because the total stored must be large
  4. DValue, because the data must be sold to engine makers

Explanation

The key requirement is near real-time capture and processing, which is velocity. Variety and volume may be present but do not address the need for speed, and selling data is not mentioned.

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