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IBM A2090-303 Exam Syllabus Topics:

IBM Assessment: IBM InfoSphere DataStage v9.1 Assessment Sample Questions:

1. A 100MB input dataset has even distribution across 400 unique key values. When you run with a 4-node configuration file, which two changes could improve sort performance in this scenario? (Choose two.)

A) Alter the Sort stage properties to perform a stable sort.
B) Set $APT_TSORT_STRESS_BLOCKSIZE to 50M
C) Specify "Restrict Memory Usage" to 60MB on the Sort stage properties.
D) Convert all numeric fields to varchars.
E) Specify Round Robin partitioning on the input link to the Sort stage.

2. In the Slowly Changing Dimension stage, a dimension columns Purpose code property can trigger which two actions. (Choose two.)

A) Update fact table keys.
B) Update the dimension table.
C) Insert rows into the fact table.
D) Detect dimension changes.
E) Delete duplicate dimension table rows.

3. What two project environment variables can be considered in your parallel jobs to support your optimization strategy of partitioning and sorting? (Choose two.)

A) $APT_RESTRICT_SORT_USAGE
B) $APT_NO_PART_INSERTION
C) $APT_PARTITION_FLUSH_COUNT
D) $APT_TSORT_STRESS_BLOCKSIZE
E) $APT_OPT_SORT_INSERTION

4. Which two file stages allow you to configure rejecting data to a reject link? (Choose two.)

A) Lookup File Set Stage
B) Complex Flat File Stage
C) Big Data File Stage
D) Data Set Stage
E) Compare Stage

5. When using a Sequential File stage as a source what are the two reject mode property options? (Choose two.)

A) Convert
B) Save
C) Continue
D) Set
E) Fail

Solutions: