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IBM InfoSphere DataStage v8.5 Sample Questions:

1. Which three statements are true about stage variables in a Transformer Stage? (Choose three.)

A) Stage variables can be set to NULL.
B) Stage variables are refreshed with default values before each new input row is processed.
C) The expression executed for a stage variable can refer to a stage variable which is executed later.
D) Varchar stage variables can be initialized with spaces.
E) A stage variable in one Transformer can refer to a stage variable in another Transformer, as long as the second Transformer was processed earlier in the job flow.

2. Which two statements are true about the use of named node pools? (Choose two.)

A) Using appropriately named node pools forces DataStage to use named pipes between stages.
B) Named node pools constraints will limit stages to be executed only on the nodes defined in the node pools.
C) Named node pools can allow separation of buffering from sorting disks.
D) Clustered environments must have named node pools for data processing.

3. Which two of the following derivations for an output column named OutCol can be used to generate a unique sequence of integers across multiple partitions?

A) @INROWNUM
B) @PARTITIONNUM + @NUMPARTITIONS
C) 1 + @NUMPARTITIONS * @INROWNUM
D) NextSurrogateKey()

4. A customer must compare a date column with a job parameter date to determine which output links the row belongs on. What stage should be used for this requirement?

A) Compare stage
B) Filter stage
C) Transformer stage
D) Switch stage

5. Click the Exhibit button.

The job in the exhibit runs to successful completion with no warnings. However, a validation test identifies that the CUSTOMER_MASTER table is empty. You suspect the cause to be related to the NEW_CUSTOMERS table or a defect in the job. Examining runtime meta-data will help you track down the problem. Which two product features will help you isolate the cause of the problem? (Choose two.)

A) Use job run operational meta-data reports from IS Manager.
B) Show Performance Statistics in the Designer.
C) Job Monitor Tool in the Director Client
D) $APT_PM_PLAYER_STATS

Solutions: