or script as the mapper and/or the reducer?

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

View Answer

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)