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IBM InfoSphere DataStage v8.5 Sample Questions:

1. Which two tasks can the Slowly Changing Dimensions (SCD) stage perform? (Choose two.)

A) Look up whether a record with a matching business key value exists in a fact table. If it does not, retrieve a new surrogate key value and insert a new row into the fact table.
B) Look up whether a record with a matching business key value exists in a dimension table. If it does not, retrieve a new surrogate key value and insert a new row into the dimension table.
C) Look up whether a record with a matching business key value exists in a dimension table. If it does, add new values for selected fields to values lists for those fields.
D) Look up whether a record with a matching business key value exists in a dimension table. If it does, mark the record as not-current, and generate a new record with new values for selected fields.

2. You have a DataStage job on SMP environment. It contains an input sequential file, a Modify stage, followed by a Transformer stage, and an output Sequential File stage. The job is run with three nodes. The engine uses all default settings. How many processes will this job create?

A) 12
B) 19
C) 9
D) 16

3. You have a dataset that is range-partitioned and sorted. Which technique is most efficient to create globally sorted data file?

A) Insert Funnel stage before the final Sequential File stage and select Sequence as Funnel Type.
B) Select SortMerge collector method for the input link of the final Sequential File stage.
C) Select Ordered collector method for the input link of the final Sequential File stage.
D) Insert Funnel stage before the final Sequential File stage and select Sort Funnel as Funnel Type.

4. Your job design calls for using a target ODBC Connector stage. The target database is found on a remote server. The target table you are writing into contains a single column primary key. What are the three "Write mode" properties that allow the possibility of multiple SQL actions? (Choose three.)

A) Truncate then add
B) Join then update
C) Update then insert
D) Delete then insert
E) Insert then update

5. You are asked by management to document all jobs written to make future maintenance easier. Which two statements are true about annotations? (Choose two.)

A) The background for the Description Annotation stage can be changed for each unique stage.
B) The Description Annotation stage contains both the short and full descriptions for the job.
C) The full job description can be identified within the Description Annotation stage.
D) The Description Annotation stage can be added several times at different locations to identify business logic.

Solutions: