ITPEC FE Morning October 2018 Question 64
ITPEC FE Morning October 2018 — Question 64 of 80
Big Data Usage — identifying which scenario represents true big data analytics
Big data is characterized by the "3 Vs": Volume (massive amounts), Variety (diverse, often unstructured sources), and Velocity (high-speed generation). True big data usage involves analyzing large-scale, typically unstructured data to derive business insights.
Correct answer: a) Analyzing a large amount of text from various social media channels to improve products. This involves massive unstructured data from multiple external sources — a hallmark of big data analytics.
Why not the others:
- b) Extracting employees by tenure from personnel records is a simple database query on structured internal data — not big data.
- c) Pulling contact addresses from a customer database is routine CRM data retrieval — small-scale, structured.
- d) Calculating a profit ratio from one partner's financial statements is standard financial analysis on a limited, structured dataset.
Key rule: Big data involves large volumes of diverse/unstructured data (social media, IoT sensors, web logs). Simple queries on existing structured databases (HR, CRM, ERP) are not big data, regardless of company size.
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