Apache _________ provides direct queries on self-describing and semi-structured data in files.
(a) Drill
(b) Mahout
(c) Oozie
(d) All of the mentioned
(a) Drill
(b) Mahout
(c) Oozie
(d) All of the mentioned
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Right answer is (a) Drill
For explanation: Users can explore live data on their own as it arrives versus spending weeks or months on data preparation, modeling, ETL and subsequent schema management.