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Java - Test Questions on 'Bigdata' - 8 questions found


Which of the following is a valid flow in Hadoop ?Bigdata
Input -> Reducer -> Mapper -> Combiner -> -> Output
Input -> Mapper -> Reducer -> Combiner -> Output
Input -> Mapper -> Combiner -> Reducer -> Output
Input -> Reducer -> Combiner -> Mapper -> Output

  hadoop  map reduce

MapReduce was devised by ...Bigdata
Apple
Google
Microsoft
Samsung

  hadoop  map reduce

Which of the following is not a phase of Reducer ?Bigdata
Map
Reduce
Shuffle
Sort

  hadoop  map reduce

How many instances of Job tracker can run on Hadoop cluster ?Bigdata
1
2
3
4

  hadoop  hadoop cluster

Which of the following is not the Dameon process that runs on a hadoop cluster ?Bigdata
JobTracker
DataNode
TaskTracker
TaskNode

  hadoop  hadoop cluster

What is a Sequence File?Bigdata
A Sequence File contains a binary encoding of an arbitrary number of homogeneous writable objects.
A Sequence File contains a binary encoding of an arbitrary number key-value pairs. Each key must be the same type. Each value must be of same type.
A Sequence File contains a binary encoding of an arbitrary number of heterogeneous writeable objects.
A Sequence File contains a binary encoding of an arbitrary number of Writable Comparable objects, in sorted order.

  hadoop  bigdata  big data

What is the input to the Reduce function ?Bigdata
One Key and One Value
Multiple Keys and Multiple associated Values
Multiple Keys and One associated values with each
One key and associated values.

  hadoop  bigdata  big data  map-reduce  map reduce  reduce function

Which of the following is the implementation language for Map Reduce Framework ?
Big Data
Hadoop
Java
C++

  hadoop  bigdata  big data  map-reduce  map reduce framework







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