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IBM C2090-421 Exam Syllabus Topics:

IBM InfoSphere DataStage v8.5 Sample Questions:

Question 1

Which two job design techniques can be used to provide unique names to sequential output files that are used in multi-instance jobs? (Select two)

A. Use the file name(s) from values contained in the data stream.
B. Create the file name(s) from values contained in a value file.
C. Use parameters to identify file names.
D. Prepend/append the Invocation ID to the file name.

Question 2

What Information Server tool provides integration with source code control repositories?

A. Information Server Manager
B. Multiple Job Compile
C. Information Services Director
D. DataStage Designer

Question 3

A job design consists of an input sequential file, a Modify stage, followed by a Filter stage and an output SequentialFile stage. The job is run on an SMP machine with a configuration file defined with three nodes. No environment variables were set for the job. How many osh processes will this job create?

A. 16
B. 8
C. 11
D. 9

Question 4

Using a DB2 for z/OS source database, a 200 million row source table with 30 million distinct values must be aggregated to calculate the average value of two column attributes. What would provide optimal performance while satisfying the business requirements?

A. Select all source rows using a DB2 API stage. Aggregate using a Sort Aggregator.
B. Select all source rows using a DB2 Enterprise stage, use a parallel Sort stage with the specified sort keys, calculate the average values using a parallel Transformer with stage variables and output link constraints.
C. Using custom SQL with AVG functions and a DISTINCT clause, select all source rows using a DB2 Enterprise stage.
D. Using custom SQL with an ORDER BY clause based on key columns, select all source rows using the DB2 API stage. Aggregate using a Hash Aggregator.

Question 5

Which three environment variables are used for reporting on DataStage jobs? (Select three)

A. $OSH_PRINT_SCHEMAS
B. $APT_DUMP_SCORE
C. $APT_PM_STARTUP_CONCURRENCY
D. $APT_PM_PLAYER_MEMORY
E. $APT_DISABLE_ROOT_FORKJOIN

Solutions: