IBM 000-421 : InfoSphere DataStage v8.5

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IBM 000-421 Exam Syllabus Topics:

IBM InfoSphere DataStage v8.5 Sample Questions:

Question #1
Records in a source file must be copied to multiple output streams for further processing. Which two conditions would require the use of a Transformer stage instead of a Copy stage? (Choose two.)

A. Directing selected output records down one output link rather than another.
B. Renaming one or more output columns.
C. Concatenating data from multiple input columns.
D. Converting some input columns from integers to strings.

Question #2
A DataStage job uses an Inner Join to combine data from two source parallel datasets that were written to disk in sort order based on the join key columns. Which two methods could be used to dramatically improve performance of this job? (Choose two.)

A. Explicitly specify hash partitioning and sorting on each input to the Join stage.
B. Disable job monitoring.
C. Add a parallel sort stage before each Join input, specifying the "Don't Sort, Previously Grouped" sort key mode for each key.
D. Unset the Preserve Partitioning flag on the output of each parallel dataset.
E. Set the environment variable $APT_SORT_INSERTION_CHECK_ONLY.

Question #3
Which two statements are correct when referring to an Aggregator Stage? (Choose two.)

A. Use Sort method with a large number of distinct key-column values
B. Use Hash method for a limited number of distinct key values
C. Use Sort method for a limited number of distinct key values
D. Use Hash method with a large number of distinct key-column values

Question #4
Which three source stages require a schema file when using RCP? (Choose three.)

A. Column Export Stage
B. Data Set Stage
C. External Target Stage
D. File Set Stage
E. Complex Flat File Stage

Question #5
When using Runtime Column Propagation, which three stages require a schema file? (Select three)

A. Peek stage
B. DB2 Enterprise stage
C. Column Import stage
D. File Set stage
E. Sequential File stage

Solutions: