Big Data Analytics (2180710) MCQs

MCQs of Introduction to hadoop and hadoop architecture

Showing 31 to 37 out of 37 Questions
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31.
The Hadoop MapReduce framework spawns one map task for each __________ generated by the InputFormat for the job.
(a) OutputSplit
(b) InputSplit
(c) InputSplitStream
(d) All of the mentioned
Answer:

Option (b)

32.
__________ can best be described as a programming model used to develop Hadoop-based applications that can process massive amounts of data.
(a) MapReduce
(b) Mahout
(c) Oozie
(d) All of the mentioned
Answer:

Option (a)

33.
___________ part of the MapReduce is responsible for processing one or more chunks of data and producing the output results.
(a) Maptask
(b) Mapper
(c) Task execution
(d) All of the mentioned
Answer:

Option (a)

34.
_________ function is responsible for consolidating the results produced by each of the Map() functions/tasks.
(a) Map
(b) Reduce
(c) Reducer
(d) Reduced
Answer:

Option (b)

35.
The number of maps is usually driven by the total size of
(a) task
(b) output
(c) input
(d) none
Answer:

Option (c)

36.
The right number of reduces seems to be :
(a) 0.65
(b) 0.55
(c) 0.95
(d) 0.68
Answer:

Option (c)

37.
Mapper and Reducer implementations can use the ________ to report progress or just indicate that they are alive.
(a) Partitioner
(b) OutputCollector
(c) Reporter
(d) All of the mentioned
Answer:

Option (c)

Showing 31 to 37 out of 37 Questions
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