oracle hash partitions
000-415 Practice Exam
000-415 Exam
IBM WebSphere IIS DataStage Enterprise Edition v7.5
Exam Number/Code : 000-415
Exam Name : IBM WebSphere IIS DataStage Enterprise Edition v7.5
Questions and Answers : 141 Q&As
Update Time: 2010-03-23
Price: $ 120.00
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Exam : IBM 000-415
Title : IBM WebSphere IIS DataStage Enterprise Edition v7.5
1. Which three features of datasets make them suitable for job restart points? (Choose three.)
A. They are persistent.
B. They are partitioned.
C. They are indexed for fast data access.
D. They are compressed to minimize storage space.
E. They use datatypes that are in the parallel engine internal format.
Answer: ABE
2. You have a parallel job that does not scale beyond two nodes. After investigation you find that the data has been partitioned on gender and you have an Aggregator stage that is accumulating totals based on gender using a sort method. Which technique should you use to allow the job to scale?
A. Add an additional column for partitioning to result in additional data partitions.
B. Change the aggregation method to hash to eliminate the blocking sort operation.
C. Change the preserve partitioning option on the stage ahead of the aggregator to clear partitioning.
D. Change the partitioning key to one that results in more partitions, add a second Aggregator stage that re-aggregates based on gender.
Answer: D
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