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IBM C2090-421 Exam Syllabus Topics:

IBM InfoSphere DataStage v8.5 Sample Questions:

1. 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) Transformer stage
B) Compare stage
C) Filter stage
D) Switch stage

2. You are setting up the parallel engine configuration file. Which two statements are true about file system efficiency? (Select two)

A) Creating scratch disk space on an internal disk improves sort performance than NFS drive.
B) Specify a directory for the resource disk in the partition where the engine is installed.
C) Using multiple scratch spaces in a logical node improves performance.
D) In a clustered environment where NAS is used for a common storage, specify the internal disk for scratch disk.

3. Which two steps are required to change from a normal lookup to a sparse lookup in an ODBC Enterprise stage? (Choose two.)

A) Replace columns at the beginning of a SELECT statement with a wildcard asterisk (*).
B) Change the lookup option in the stage properties to "Sparse".
C) Sort the data on the reference link.
D) Establish a relationship between the key field column in the source stage with the database table field.

4. What stage allows for more than one reject link?

A) Join stage
B) Merge stage
C) Funnel stage
D) Lookup stage
E) Peek stage

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

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

Solutions: