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IBM Assessment: InfoSphere DataStage v8.5 Sample Questions:

1. The given job processes large volumes of data using default partitioning, with sort/partition insertion enabled. Both source Data Sets are partitioned and sorted on the merge key. Assuming that the business logic allows all of the following actions, which design change would improve the performance of this job?

A) Set the "Preserve Partitioning" option on both Data Sets and replace the Merge stage with a Sort Funnel stage.
B) Set the buffer mode to "no buffer" on the output links of both Data Sets.
C) Before each input to the Merge stage, insert a Sort stage with "Don't Group, Previously Grouped" set on the merge key. Specify SAME partitioning on all inputs.
D) Use the Data Set Management Utility to combine both input Data Sets into a single source Data Set.

2. A customer requires that a single output file generated by a parallel job be created in sort order. Which two job designs would achieve this goal? (Choose two.)

A) Insert a sorted Funnel stage before the input to the output SequentialFile stage.
B) Set the "Execution Mode" in the Advanced stage properties tab of the parallel Sort stage to execute sequentially.
C) Specify both partition and sort key columns on the input to the target SequentialFile stage.
D) Write the result to a parallel dataset, then write a shell script to convert the dataset records to text format, in sorted order.
E) Use a parallel sort and partition the input to the SequentialFile stage using a Sort Merge collector.

3. Which three of the following actions are available when editing a message handler? (Select three)

A) Demote to warning
B) Demote to informational
C) Abort Job
D) Suppress from job log
E) Promote to warning

4. You have a parallel shared container that is used by other parallel jobs within your project. Part of the logic in this shared container has been changed. Which two statements are true regarding this change to the parallel shared container? (Choose two.)

A) You can create a sequencer to re-compile all of the routines using this shared container.
B) Use usage analysis and multi-compile to re-compile job using this shared container.
C) Jobs using this parallel shared container need to be re-compiled only when the metadata of the container is changed.
D) Jobs using this parallel shared container need to be re-compiled.

5. You have been asked to delete a shared container from the project by your customer. Before you do this you want to make sure it will not impact other objects in the project. How will you ensure that deleting the shared container will not cause a failure when jobs are recompiled?

A) Select the shared container, Right-click on the Dependencies (deep) command.
B) Advanced find, set Dependencies Of field equal to the container name, and Check the Option to Include nested results for Dependency searches.
C) Select the shared container, Right-click on the Where used (deep) command.
D) Select the shared container, Right-click on the Where used command.

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