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IBM C2090-421 Exam Syllabus Topics:

IBM InfoSphere DataStage v8.5 Sample Questions:

Question 1

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

A. Hash partitioned
B. Sorted in ascending order
C. Key partitioned
D. Entire partitioned
E. Unsorted

Question 2

Refer to the exhibit.

You submit a job from DataStage Director and then log onto your DataStage Linux server to issue the command "ps-ef | grepds" and receive the following screen:
Which process is the section leader for node2?

A. 7221
B. 7220
C. 7219
D. 7216

Question 3

Configuring the weighting column of an Aggregator stage affects which three options. (Choose three.)

A. Sum of Weights
B. Corrected Sum of Squares
C. Sum
D. Percent Coefficient of Variation
E. Maximum Value

Question 4

Which two features of Data Sets make them suitable for job restart points? (Choose two.)

A. They are indexed to improve access.
B. They use the same data types as the parallel framework.
C. They are persistent.
D. They are compressed to minimize storage space.

Question 5

There is a requirement to load mainframe data with array columns having redefined fields into a flat file. How can the Complex Flat File

A. CFF does not support flattening for redefined fields.
B. Select the Records ID tab on the Stage page. Select a record from the Records list. Select the column(s) with the redefine from the Column list. Within CFF, use the Complex File Load Option window with "Flatten selective arrays" option selected.
C. Within CFF, use the Complex File Load Option window with "Flatten all arrays" option selected. CFF will handle flattening automatically.
D. Within CFF, use the Complex File Load Option window with "Flatten selective arrays" option selected. Select the array with redefine column(s) and click redefine check box option.

Solutions: