Big Data Developer Interview Questions

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Data join question: The higher the Key Performance Indicator is, the better the performance of the tower. Please provide a solution to determine the best and worst performing tower, as well as the average tower performance per market. Datasets KPI Dataset = TOWERID, DATE, KPI Market Info = TOWERID, MARKET
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Big Data Engineer

Interviewed at AT&T

3.3
Oct 16, 2015

Data join question: The higher the Key Performance Indicator is, the better the performance of the tower. Please provide a solution to determine the best and worst performing tower, as well as the average tower performance per market. Datasets KPI Dataset = TOWERID, DATE, KPI Market Info = TOWERID, MARKET

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