IBM Assessment: IBM InfoSphere DataStage v9.1 Assessment 認定 A2090-303 試験問題:

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

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

2. In the exhibit, a Funnel stage has two input links. Input 1 (Seq_File) comes from a Sequential File stage with "Readers per Node" set to "2". Input 2 (Dataset) comes from a dataset created with 3 partitions. In the Funnel stage, the funnel type is set to "Sequence".

The parallel configuration file contains 4 nodes. How many instances of the Funnel stage run in parallel?

A) 2
B) 1
C) 6
D) 4

3. When using the loop functionality in a transformer, which statement is true regarding Transformer processing.

A) Loop variable expressions are executed before input link column expressions.
B) Stage variables can be referenced in loop conditions.
C) Stage variables can be executed after loop variable expressions.
D) Output links can be excluded from being associated with a True loop condition.

4. Which derivations are executed first in the Transformer stage?

A) Loop variable derivations
B) Output column derivations
C) Stage variable derivations
D) Input column derivations

5. You would like to pass values into parameters that will be used in a variety of downstream activity stages within a job sequence. What are two valid ways to do this? (Choose two.)

A) Check the "Propagate Parameters" checkbox in the Sequence Job properties.
B) Add a Transformer stage variable to the job sequence canvas.
C) Use local parameters.
D) Place a parameter set stage on the job sequence.
E) Use the UserVariablesActivity stage to populate the local parameters from an outside source such as a file.

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