Question

Indentify the utility that allows you to create and run MapReduce jobs with any executable or script  as the mapper and/or the reducer?

A. Oozie
B. Sqoop
C. Flume
D. Hadoop Streaming
E. mapred

Answer 1

Answer D

Explanation:

Hadoop streaming is a utility that comes with the Hadoop distribution. The utility allows you to create and run Map/Reduce jobs with any executable or script as the mapper and/or the reducer.

Reference:
http://hadoop.apache.org/common/docs/r0.20.1/streaming.html (Hadoop Streaming, second sentence)