ACCA Applied Skills · Performance Management · Big data and data analytics
A retailer collects data from millions of till transactions, website clicks, social media posts and sensor readings each day. Which characteristic of big data describes the sheer amount of data being generated and stored?
The answer is volume. Volume is the big data characteristic that describes the sheer quantity of data generated and stored, such as millions of daily transactions and clicks. Velocity is speed, variety is the range of formats, and veracity is data reliability, so none of those fits.
- AVolumeCorrect
- BVelocity
- CVariety
- DVeracity
Explanation
Volume refers to the scale or quantity of data held. Velocity concerns the speed at which data is generated and processed, variety concerns the different forms of data, and veracity concerns its reliability. The question is about quantity, so volume is correct.
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