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IBM InfoSphere DataStage v9.1 Sample Questions:

1. Which statement is true about improving job performance when using Balanced Optimization?

A) Balance optimization attempts to balance the work between the source server, target sever, and the job.
B) To ensure that a particular stage can only be pushed into a source or target connector, you can set the Stage Affinity property to source or target.
C) Convert a job to use bulk staging tables for Big Data File stages.
D) If the job contains an Aggregator stage, data reduction stages will be pushed into a target data server by default.

2. Modular development techniques should be used to maximize re-use of DataStage jobs and components. Which statement represents Modular Development techniques?

A) Job parameterization allows a single job design to process similar logic instead of creating multiple copies of the same job.
B) Job parameters should be used in Job Names.
C) Hard code the Invocation ID to improve development process.
D) Create a standard directory structure inside of the DataStage project directory for source and target files.

3. Which two environment variables add additional reporting information in the job log for DataStage jobs? (Choose two.)

A) $APT_IO_MAP
B) $OSH_EXPLAIN
C) $APT_EXPORT_FLUSH_COUNT
D) $APT_PM_STARTUP_CONCURRENCY
E) $APT_STARTUP_STATUS

4. In a Transformer expression for a stage variable, there is a nullable input column. Assume the legacy NULL processing option is turned off. What happens when a row is processed that contains NULL in that input column?

A) NULL is written to the stage variable.
B) The value written to the stage variable is undetermined.
C) The row is rejected.
D) The job aborts.

5. Which two data repositories can be used for user authentication within the Information Server Suite? (Choose two.)

A) IBM Metadata repository
B) IBM Information Server user directory
C) IIS Web Console
D) Standalone LDAP registry
E) Operations Console database

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