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IBM InfoSphere DataStage v8.5 Sample Questions:

1. When creating a Wrapper stage, which three tasks need to be done? (Select three)

A) Create Table Definitions that define the Wrapper's input and output columns.
B) Specify the command to be executed by the Wrapper.
C) Specify whether input rows are to be processed automatically or manually.
D) Code and compile the C/C++ Wrapper source code.
E) Specify how Wrapper property values are to be converted.

2. There is a requirement to load mainframe data with array columns having redefined fields into a flat file. How can the Complex Flat File

A) CFF does not support flattening for redefined fields.
B) Within CFF, use the Complex File Load Option window with "Flatten selective arrays" option selected. Select the array with redefine column(s) and click redefine check box option.
C) Within CFF, use the Complex File Load Option window with "Flatten all arrays" option selected. CFF will handle flattening automatically.
D) Select the Records ID tab on the Stage page. Select a record from the Records list. Select the column(s) with the redefine from the Column list. Within CFF, use the Complex File Load Option window with "Flatten selective arrays" option selected.

3. In the job fragment shown in the exhibit, the data going into the target Sequential File stage needs to be sorted by postal code. The Sort stage accomplishes this by running in Sequential mode and sorting by postal code. You have been asked to improve the performance of the job with a 4-node configuration file.

Which two changes will improve the performance of the job? (Choose two.)

A) Change the mode of the existing Sort stage to parallel mode; continue to sort by postal code. In the target Sequential File stage choose the SortMerge collector.
B) Eliminate the existing Sort stage; define an in-stage sort in the Filter stage, sorting by postal code. In the target Sequential File stage choose the SortMerge collector.
C) Move the Sort stage in front of the Filter stage, so that the sort is performed earlier in the job.
D) Add a second Sort stage just before the existing Sort stage; run the new stage in parallel mode sorting by postal code.

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

A) Stage variables are executed after constraints but before derivations.
B) Stage variables are executed before loop variables.
C) Stage variables cannot contain NULL values.
D) Stage variables retain their values between rows in the stage.
E) A derivation for a stage variable can reference stage variables that are later in the execution order.

5. You are using the Change Capture stage in your job design to identify changes made to the input link (before image) to obtain the results in the output link. This job will be using a multi-node configuration file when executed. By default, the Change Capture stage produces an output change link with which two characteristics? (Choose two.)

A) added column named Difference_Value
B) Table Definition based on the keys of the input link
C) Table Definition based on the after input link
D) added column named Change_Code

Solutions: