Explanation:For each MapReduce job, the loader produces a tuple with schema (j:map[], m:map[], r:map[]). 2. Point out the correct statement :
A. LoadPredicatePushdown is same as LoadMetadata.setPartitionFilter
B. getOutputFormat() is called by Pig to get the InputFormat used by the loader
C. Pig works with data from many sources
D. None of the mentioned
Answer:A
Explanation:For each MapReduce job, the loader produces a tuple with schema (j:map[], m:map[], r:map[]). 2. Point out the correct statement :
A. LoadPredicatePushdown is same as LoadMetadata.setPartitionFilter B. getOutputFormat() is called by Pig to get the InputFormat used by the loader C. Pig works with data from many sources D. None of the mentioned
Explanation:Data sources includes structured and unstructured data, and store the results into the Hadoop Data File System. 3. Which of the following find the running time of each script (in seconds) ?