Free Apache-Hadoop-Developer – Hadoop 2.0 Certification exam for Pig and Hive Developer Practice Test Question

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  An HDFS file that is larger than dfs.block.size is split into blocks

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  Blocks are replicated to multiple datanodes

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  HDFS works best when storing a large number of relatively small files

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  Block sizes for all files must be the same size
  

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  Single point of failure in the NameNode.

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  Resource pressure on the JobTracker.

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  HDFS latency.

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  Ability to run frameworks other than MapReduce, such as MPI.

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  Reduce complexity of the MapReduce APIs.

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  Standardize on a single MapReduce API.
  

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  The contents of myfile appear on stdout

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  Pig assumes the contents of myfile are comma delimited

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  ABC has a schema associated with it

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  myfile is read from the user's home directory in HDFS