QUESTION NO: 1
Which two of the following statements are true about Pig's approach toward data? Choose 2 answers
Which two of the following statements are true about Pig's approach toward data? Choose 2 answers
Correct Answer: B,D
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QUESTION NO: 2
You have written a Mapper which invokes the following five calls to the OutputColletor.collect method:
output.collect (new Text ("Apple"), new Text ("Red") ) ; output.collect (new Text ("Banana"), new Text ("Yellow") ) ; output.collect (new Text ("Apple"), new Text ("Yellow") ) ; output.collect (new Text ("Cherry"), new Text ("Red") ) ; output.collect (new Text ("Apple"), new Text ("Green") ) ; How many times will the Reducer's reduce method be invoked?
You have written a Mapper which invokes the following five calls to the OutputColletor.collect method:
output.collect (new Text ("Apple"), new Text ("Red") ) ; output.collect (new Text ("Banana"), new Text ("Yellow") ) ; output.collect (new Text ("Apple"), new Text ("Yellow") ) ; output.collect (new Text ("Cherry"), new Text ("Red") ) ; output.collect (new Text ("Apple"), new Text ("Green") ) ; How many times will the Reducer's reduce method be invoked?
Correct Answer: D
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QUESTION NO: 3
What does the following command do? register '/piggyban):/pig-files.jar';
What does the following command do? register '/piggyban):/pig-files.jar';
Correct Answer: C
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QUESTION NO: 4
Which TWO of the following statements are true regarding Hive? Choose 2 answers
Which TWO of the following statements are true regarding Hive? Choose 2 answers
Correct Answer: A,C
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QUESTION NO: 5
You've written a MapReduce job that will process 500 million input records and generated 500 million key-value pairs. The data is not uniformly distributed. Your MapReduce job will create a significant amount of intermediate data that it needs to transfer between mappers and reduces which is a potential bottleneck. A custom implementation of which interface is most likely to reduce the amount of intermediate data transferred across the network?
You've written a MapReduce job that will process 500 million input records and generated 500 million key-value pairs. The data is not uniformly distributed. Your MapReduce job will create a significant amount of intermediate data that it needs to transfer between mappers and reduces which is a potential bottleneck. A custom implementation of which interface is most likely to reduce the amount of intermediate data transferred across the network?
Correct Answer: E
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QUESTION NO: 6
Which HDFS command uploads a local file X into an existing HDFS directory Y?
Which HDFS command uploads a local file X into an existing HDFS directory Y?
Correct Answer: A
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QUESTION NO: 7
Which Two of the following statements are true about hdfs? Choose 2 answers
Which Two of the following statements are true about hdfs? Choose 2 answers
Correct Answer: C,D
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QUESTION NO: 8
Identify the MapReduce v2 (MRv2 / YARN) daemon responsible for launching application containers and monitoring application resource usage?
Identify the MapReduce v2 (MRv2 / YARN) daemon responsible for launching application containers and monitoring application resource usage?
Correct Answer: A
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