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IBM Websphere Datastage V.8.0 Sample Questions:

1. Your customer uses a third-party application to load their proprietary RDBMS. This application can read data from flat files, named pipes (FIFOs), and standard input (STDIN). You are assigned to write a job to prepare data for the database. Which two would result in the least amount of file system I/O between your job and the third-party application? (Choose two.)

A) Write to a File Set, which is read by the application.
B) Write to an External Target, which is read by the application.
C) Write to a named pipe, which is read by the application.
D) Write to a Sequential File, which is read by the application.

2. Click the Exhibit button.
In the exhibit, data is being read from a Sequential File stage (Read_Selling_Group_Mapping) and written to a target Data Set stage (Write_Selling_Group_Mapping_Copy). All columns are being mapped source to target in the Copy stage. After the job is executed using a 2-node configuration file, you notice that the Data Set has only one partition. Which setting should be set to ensure Data Set has two partitions?

A) Change partitioning method from "Auto" to "SAME" in the Copy stage.
B) Change partitioning method from "Auto" to "Round Robin" in the Copy stage.
C) Enable Runtime Column Propagation (RCP).
D) Disable Runtime Column Propagation (RCP) in both the Copy stage and the Data Set stage.

3. Which two statements are correct about XML stages and their usage? (Choose two.)

A) XML Output stage can invoke an XSLT style sheet for XML to tabular transformations.
B) XML Output stage converts tabular data to XML hierarchical structure.
C) XML Input stage converts XML data to tabular format.
D) XML Transformer stage converts XSLT data to tabular format.

4. Which three statements are true about stage variables? (Choose three.)

A) Stage variables cannot be referenced in output link derivations.
B) Stage variables can be used to control execution of constraints.
C) Stage variables retain their value between rows in the stage.
D) Stage variables are executed in random order.
E) Stage variables are executed before output link derivations.

5. In a job using Sequential File stage to write a sequential file, the ContactName column is nullable, but the "Null field value" property is left unspecified. The ContactName column has a Char(50) data type. What will happen if NULL is written to the ContactName column?

A) The row containing the NULL will be rejected.
B) The job will abort.
C) The empty string ("") will be written to the ContactName column.
D) The column will be padded with the character specified by the $APT_STRING_PADCHAR character.

Solutions: