When running Hive Queries using Apache Spark, which of the following execution engines is invoked?
A . Tez
B . Spark
C . HiveQL
D . MapReduce
Answer: B
Explanation:
Explanation: When running queries, you can set hive.execution.engine so as to choose the execution engine. To run on Spark, set it to spark. To run on MapReduce, set it to mr.
Reference: https://www.ibm.com/support/knowledgecenter/en/SSPT3X_4.2.5/com.ibm.swg.im.infosphere.biginsights.admin.doc/doc/admin_hive_on_spark.html