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IBM InfoSphere DataStage v9.1 Sample Questions:

1. The derivation for a stage variable is: Upcase(input_column1) : ' ' : Upcase(input_column2). Suppose that input_column1 contains a NULL value. Assume the legacy NULL processing option is turned off. Which behavior is expected?

A) The input row is either dropped or rejected depending on whether the Transformer has a reject link.
B) NULL is written to the target stage variable.
C) The target stage variable is populated with spaces or zeros depending on the stage variable data type.
D) The job aborts.

2. When using the Sequential File stage as a source, what two property options allow you to add extra columns about the file(s) you are reading onto the output link? (Choose two.)

A) Number of Records Column
B) Percent Null Column
C) File Name Column
D) Surrogate Key Column
E) Row number Column

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

4. Which two statements are true about Data Sets? (Choose two.)

A) Data Sets require import/export conversions.
B) Data Sets represent persistent data.
C) Data Sets preserve partitioning.
D) Data sets contain ASCII data.
E) Data Sets require repartitioning.

5. When optimizing a job, Balanced Optimization will NOT search the job for what pattern?

A) Property Settings
B) Links
C) Stages
D) Sequencers

Solutions: