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____________ is a query processing and optimization system for large-scale.

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____________ is a query processing and optimization system for large-scale.

(a) MRQL

(b) NiFi

(c) OpenAz

(d) ODF Toolkit

I had been asked this question in an interview for internship.

Asked question is from Hadoop Incubators in chapter Incubator Projects, Chuckwa, Ambari, Knox and Hadoop Development Tools of Hadoop

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Correct answer is (a) MRQL

For explanation: MRQL is built on top of Apache Hadoop, Hama, Spark, and Flink.

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