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IBM Assessment: InfoSphere DataStage v8.5 Sample Questions:

1. What conditions are necessary for a master record and an update record to merge?

A) some of the columns in the input record match the columns in the update record
B) both records have the same values for the merge key column(s) that you specify
C) all of the columns in the input record match the columns in the update record
D) none of the columns in the input record match the columns in the update record

2. You are running a DataStage job using a 2-node configuration file. How can a fixed-width single sequential file be read in parallel? (Choose two.)

A) Use an external Source stage.
B) Specify a node constraint for the SequentialFile stage.
C) Set the "Number of Readers per Node" optional property to a value greater than 1.
D) Set the "Read From Multiple Nodes" optional property to a value greater than 1.
E) Set the Execution Mode to the SequentialFile stage to "Parallel".

3. What are two advantages of using Runtime Column Propagation (RCP)? (Choose two.)

A) RCP is not a feature of DataStage.
B) Columns not specifically used in the flow are propagated as if they were.
C) Only columns used in the data flow need to be defined.
D) Only columns that are defined as VarChar need RCP enabled.
E) Sequential files don't require schema files when using RCP.

4. A dataset was created earlier with one partition, with the Preserve Partitioning flag set. A subsequent job using a 2-node configuration file reads from that dataset, passing data to a Transformer stage with "Same" partitioning.
Which two statements are true? (Select two)

A) Setting the Preserve Partitioning flag to "Set" will run one instance of the Transformer stage.
B) The DataStage job will abort.
C) DataStage will repartition the data and run one instance of the Transformer stage.
D) Setting the Preserve Partitioning flag to "Clear" will generate two instances of the Transformer stage.
E) Inserting a Sort stage prior to the Transformer stage will force its parallel execution.

5. The number of File Set data files created depends upon what three items? (Choose three.)

A) Number of disks in the export or default disk pool connected to each processing node in the default node pool
B) Schema definition of the file.
C) Number of processing nodes in the default node pool.
D) Number of physical processing nodes.
E) File system limitations.

Solutions: