Question 11 : On a tasktracker, the map task passes the split to the createRecordReader() method on InputFormat to obtain a _________ for that split.
1. InputReader
2. RecordReader
3. OutputReader
4. None of the mentioned
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Question 12 : InputFormat class calls the ________ function and computes splits for each file and then sends them to the jobtracker.
1. puts
2. gets
3. getSplits
4. all of the mentioned
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Question 13 : The JobTracker pushes work out to available _______ nodes in the cluster, striving to keep the work as close to the data as possible
1. DataNodes
2. TaskTracker
3. ActionNodes
4. All of the mentioned
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Question 14 : The daemons associated with the MapReduce phase are ________ and task-trackers.
1. job-tracker
2. map-tracker
3. reduce-tracker
4. all of the mentioned
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Question 15 : ________ is a programming model designed for processing large volumes of data in parallel by dividing the work into a set of independent tasks.
1. Hive
2. MapReduce
3. Pig
4. Lucene
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Question 16 : Which of the following parameter is to collect keys and combined values ?
1. key
2. values
3. reporter
4. output
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Question 17 : Applications can use the _________ provided to report progress or just indicate that they are alive.
1. Collector
2. Reporter
3. Dashboard
4. None of the mentioned
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Question 18 : The output of the reduce task is typically written to the FileSystem via :
1. OutputCollector
2. InputCollector
3. OutputCollect
4. All of the mentioned
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Question 19 : Reducer is input the grouped output of a :
1. Mapper
2. Reducer
3. Writable
4. Readable
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Question 20 : Interface ____________ reduces a set of intermediate values which share a key to a smaller set of values.
1. Mapper
2. Reducer
3. Writable
4. Readable
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