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

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

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

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) Hash partition and sort on ZIP code column prior to the Copy stage and use entire partitioning on the Aggregator and Join stages.
C) Use Entire partitioning on the input links to 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. You would like to pass values into parameters that will be used in a variety of downstream activity stages within a job sequence. What are two valid ways to do this? (Choose two.)

A) Use local parameters.
B) Add a Transformer stage variable to the job sequence canvas.
C) Use the UserVariablesActivity stage to populate the local parameters from an outside source such as a file.
D) Place a parameter set stage on the job sequence.
E) Check the "Propagate Parameters" checkbox in the Sequence Job properties.

4. You are using the Complex Flat File stage as a source in your job. What are two types of data specifically supported by the Complex Flat File stage for your job? (Choose two.)

A) Mainframe data sets with VSAM files.
B) Data from flat files that contain multiple record types.
C) Mainframe data files with DB2 tables.
D) XML files.
E) Data from files that contain Hadoop record types.

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

Solutions: