Discussion :: Hadoop MCQs
- Point out the wrong statement :
A.
The Mapper outputs are sorted and then partitioned per Reducer
|
B.
The total number of partitions is the same as the number of reduce tasks for the job
|
C.
The intermediate, sorted outputs are always stored in a simple (key-len, key, value-len, value) format
|
D.
None of the mentioned
|
Answer : Option D
Explanation :
All intermediate values associated with a given output key are subsequently grouped by the framework, and passed to the Reducer(s) to determine the final output.
Be The First To Comment