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IBM Assessment: InfoSphere DataStage v8.5 Sample Questions:

1. A DataStage job uses an Inner Join to combine data from two source parallel datasets that were written to disk in sort order based on the join key columns. Which two methods could be used to dramatically improve performance of this job? (Choose two.)

A) Explicitly specify hash partitioning and sorting on each input to the Join stage.
B) Disable job monitoring.
C) Set the environment variable $APT_SORT_INSERTION_CHECK_ONLY.
D) Add a parallel sort stage before each Join input, specifying the "Don't Sort, Previously Grouped" sort key mode for each key.
E) Unset the Preserve Partitioning flag on the output of each parallel dataset.

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

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

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

4. Which two statements are true about Transformer loop processing? (Select two)

A) Stage variables can be referenced in loop conditions.
B) Loop conditions are evaluated once for each input row.
C) Loop variable expressions are executed before stage variable expressions.
D) Loop variable expressions are executed before output link column expressions.

5. You are working on a project that contains a large number of jobs contained in many folders. You would like to review the jobs created by the former developer of the project. How can you find these jobs?

A) Use the Advanced Find feature contained in the Designer interface.
B) Filter jobs in Director Client's Repository window.
C) Sort the jobs by date in the Repository window.
D) While selecting the top folder in the project, choose Find Dependencies.

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