CFA Level I · CFA Level I Exam · Introduction to Financial Data Science
Which feature of big data is most likely described by an investment firm collecting real-time social media posts, satellite images and transaction records together?
The feature most likely described is variety. The firm is combining different data forms, such as text posts, images and structured transaction records, from multiple sources. Veracity concerns data reliability and volume concerns sheer size, neither of which is the main point in this scenario.
- AVarietyCorrect
- BVeracity
- CVolume only
Explanation
Combining structured, unstructured and image data from different sources reflects variety. Veracity concerns reliability of data, and volume alone concerns size, which is not the emphasis here.
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