ACCA Strategic Professional · Advanced Performance Management · Data science and analytics
Delmar Retail plc records every online click, basket addition and search term from millions of customers in real time, in a mix of text, images and numeric logs. Management says the data set is too large and varied for its traditional relational database. Which set of big data characteristics does this best describe?
The scenario describes volume, velocity and variety. The very large number of records gives volume, the real-time capture of clicks gives velocity, and the mixture of text, images and numeric logs gives variety. These three Vs are the standard characteristics distinguishing big data from conventional data sets.
- AVolume, velocity and varietyCorrect
- BValidity, vulnerability and value only
- CVolume, variance and verification
- DVelocity, vagueness and visibility
Explanation
Millions of records show volume, real-time capture shows velocity, and the mix of text, images and numbers shows variety. These are the core three Vs. The other options use terms that are not the standard descriptors, or omit the characteristics clearly described.
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