ACCA Applied Knowledge · Business and Technology · Financial systems and technology
Which of the following is the best description of the 'velocity' characteristic of big data?
Velocity is the speed at which big data is generated, collected and must be processed, for example real-time transaction or sensor streams. Variety covers formats and veracity covers reliability, so those describe other characteristics.
- AThe speed at which data is generated and must be processedCorrect
- BThe range of different formats in which data is held
- CThe accuracy and reliability of the data collected
Explanation
Velocity concerns how fast data is created and needs processing, such as streaming transactions or sensor feeds. Variety refers to different formats, and veracity refers to accuracy and reliability, so the other options describe different characteristics.
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