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IBM Certified Solution Developer - IBM InfoSphere DataStage Sample Questions:

1. On the DataStage development server, you have been making enhancements to a copy of a DataStage job running on the production server. You have been asked to document the changes you have made to the job. What tool in DataStage Designer would you use?

A) diffapicmdline.exe
B) Compare Against
C) DSMakeJobReport
D) Cross Project Compare

2. 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 same 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 entire 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.

3. Identify two restructure stages that allow you to create or organize vectors in the output link results? (Choose two.)

A) Merge records
B) Make Subrecord
C) Column Import
D) Split Vector
E) Split Subrecord

4. When using Runtime Column Propagation, which two stages require a schema file? (Choose two.)

A) DB2 Connector stage
B) Peek stage
C) Sequential File stage
D) Pivot stage
E) Column Import stage

5. You are experiencing performance issues for a given job. You are assigned the task of understanding what is happening at run time for that job. What step should you take to understand the job performance issues?

A) Run the job with $APT_TRACE_RUN set to true.
B) Replace Join stages by Lookup stages.
C) Replace Transformer stages with custom operators.
D) Run the job with $APT_DUMP_SCORE set to true.

Solutions: