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IBM InfoSphere DataStage v8.5 Sample Questions:

1. Your job sequence must be restartable. It runs Job1, Job2, and Job3 serially. It has been compiled with "Add checkpoints so sequence is restartable". Job1 must execute every run even after a failure. Which two properties must be selected to ensure that Job1 is run each time, even after a failure? (Choose two.)

A) Use the Nested Condition Activity with a trigger leading to Job1; set the trigger expression type to "Unconditional".
B) Set trigger on the Job1 Activity stage to "Unconditional".
C) Set the Job1 Activity stage to "Do not checkpoint run.".
D) In the Job1 Activity stage set the Execution action to "Reset if required, then run.".

2. When you run a parallel job, any error messages and warnings are written to the job log and can be viewed from the Director client. What two levels of message handlers are there? (Choose two.)

A) record level
B) stage level
C) project level
D) job level

3. Which two statements are correct when referring to an Aggregator Stage? (Choose two.)

A) Use Hash method with a large number of distinct key-column values
B) Use Sort method with a large number of distinct key-column values
C) Use Hash method for a limited number of distinct key values
D) Use Sort method for a limited number of distinct key values

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

5. Which two property areas must be configured when using the ODBC connector stage as a target in your job design? (Choose two.)

A) Define the connection properties to an ODBC data source.
B) Specify properties for the input link.
C) Define columns for the output link.
D) Specify the remote server property.

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