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

1. Identify two different types of custom stages you can create to extend the Parallel job syntax? (Choose two.)

A) Wrapped stage
B) Group stage
C) Input stage
D) Custom stage
E) Basic stage

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

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

3. What two project environment variables can be considered in your parallel jobs to support your optimization strategy of partitioning and sorting? (Choose two.)

A) $APT_OPT_SORT_INSERTION
B) $APT_RESTRICT_SORT_USAGE
C) $APT_NO_PART_INSERTION
D) $APT_PARTITION_FLUSH_COUNT
E) $APT_TSORT_STRESS_BLOCKSIZE

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

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

5. Which stage classifies data rows from a single input into groups and computes totals?

A) Transformer stage
B) Modify stage
C) Aggregator stage
D) Compare stage

Solutions: