Question

MapReduce jobs submitted from either Oozie, Pig or Hive can be used to encode, improve and sample the data sets from _________ into R.

(a) HDLS

(b) HDFS

(c) HDLSV

(d) HSSLV

This question was addressed to me in homework.

Origin of the question is Functions in section Control Structures, Functions, Scoping Rules, Loop Functions and Debugging of R Programming

Answer 1

Correct choice is (b) HDFS

The explanation is: MapReduce jobs submitted from either Oozie, Pig or Hive can be used for encode, improve and sample the data sets from HDFS into R. This helps to leverage complex analysis tasks with the subset of data prepared in R.