ACCA Applied Knowledge · Business and Technology · The impact of advances in technology
Which of the following best describes the 'velocity' characteristic of big data?
Velocity describes how fast data is generated and needs to be processed, such as real-time transaction or sensor feeds. It is distinct from variety, which concerns different data formats, and veracity, which concerns the accuracy and reliability of the data.
- AThe speed at which data is generated and must be processedCorrect
- BThe range of formats in which data is held, such as text, images and video
- CThe accuracy and trustworthiness of the data collected
Explanation
Velocity refers to the speed at which data is created and has to be captured and processed, for example live card transactions. Variety relates to different formats, and veracity relates to the reliability of the data.
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