Posted by: Pdfprep
Post Date: March 1, 2021
How are keys and values presented and passed to the reducers during a standard sort and shuffle phase of MapReduce?
A . Keys are presented to reducer in sorted order; values for a given key are not sorted.
B . Keys are presented to reducer in sorted order; values for a given key are sorted in ascending order.
C . Keys are presented to a reducer in random order; values for a given key are not sorted.
D . Keys are presented to a reducer in random order; values for a given key are sorted in ascending order.
Answer: A
Explanation:
Reducer has 3 primary phases:
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