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IBM InfoSphere DataStage v9.1 Sample Questions:

1. 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_OPT_SORT_INSERTION
B) $APT_NO_PART_INSERTION
C) $APT_RESTRICT_SORT_USAGE
D) $APT_TSORT_STRESS_BLOCKSIZE
E) $APT_PARTITION_FLUSH_COUNT

2. Which step is required to change from a normal lookup to a sparse lookup in an ODBC Connector stage?

A) Sort the data on the reference link.
B) Change the lookup option in the stage properties to "Sparse".
C) Replace columns at the beginning of a SELECT statement with a wildcard asterisk (*).
D) Change the partitioning to hash.

3. The parallel framework supports standard and complex data types in the SQL type column tab property. Identify the two complex data types? (Choose two.)

A) Linked list
B) Binary trees
C) VarChar
D) Subrecord
E) Vector

4. You are asked to optimize the fork join job design in the exhibit. This job uses the sort aggregator and a left outer join on the ZIP code column. Currently all partitioning is set to "Auto" and automatic sort insertion is allowed.

Which change will reduce the cost of partitioning that occurs in this job?

A) Hash partition and sort on ZIP code column prior to the Copy stage and use entire partitioning on the Aggregator and Join stages.
B) Use Entire partitioning on the input links to the Aggregator and Join stages.
C) Hash partition and sort on ZIP code column prior to the Copy stage, and use same partitioning on the Aggregator and Join stages.
D) Hash partition and sort on ZIP code column on the input links to the Aggregator and Join stages.

5. The effective use of naming conventions means that objects need to be spaced appropriately on the DataStage Designer canvas. For stages with multiple links,expanding the icon border can significantly improve readability. This approach takes extra effort at first, so a pattern of work needs to be identified and adopted to help development. Which feature of Designer can improve development speed?

A) Repository Layout
B) Show Performance Statistics Feature
C) Palette Layout
D) Snap to Grid Feature

Solutions: