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IBM A2090-303 Exam Syllabus Topics:

IBM Assessment: IBM InfoSphere DataStage v9.1 Assessment Sample Questions:

1. Which step is required to change from a normal lookup to a sparse lookup in an ODBC Connector stage?

A) Replace columns at the beginning of a SELECT statement with a wildcard asterisk (*).
B) Sort the data on the reference link.
C) Change the lookup option in the stage properties to "Sparse".
D) Change the partitioning to hash.

2. How must the input data set be organized for input into the Join stage? (Choose two.)

A) Sorted by Join key
B) Key partitioned
C) Unsorted
D) Hash partitioned
E) Entire partitioned

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

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

4. The parallel framework was extended for real-time applications. Identify two of these aspects. (Choose two.)

A) Real-time stage types that re-run jobs.
B) Real-time stage types that keep jobs always up and running.
C) End-of-wave.
D) XML stage.
E) Support for transactions within source database connector stages.

5. What are two properties dependent of both Column for Calculation and Summary Column for Recalculation? (Choose two.)

A) Mean Deviation
B) Missing Value
C) Sum of Squares
D) Coefficient of Variation
E) Summary

Solutions: