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IBM A2090-421 Exam Syllabus Topics:

IBM Assessment: InfoSphere DataStage v8.5 Sample Questions:

Question 1

You have a dataset hash-partitioned and sorted on CustID. You need to create a Sequential File sorted on CustID from this dataset. Which technique is the most appropriate?

A. Insert Sort stage before the final Sequential File stage and use Round Robin collector for the Sequential File stage input link.
B. Use SortMerge collector for the Sequential File input link.
C. Insert Sort stage before the final Sequential File stage and use Ordered collector for the Sequential File stage input link.
D. Use Copy stage.

Question 2

In the job fragment shown in the exhibit, the data going into the target Sequential File stage needs to be sorted by postal code. The Sort stage accomplishes this by running in Sequential mode and sorting by postal code. You have been asked to improve the performance of the job with a 4-node configuration file.

Which two changes will improve the performance of the job? (Choose two.)

A. Change the mode of the existing Sort stage to parallel mode; continue to sort by postal code. In the target Sequential File stage choose the SortMerge collector.
B. Eliminate the existing Sort stage; define an in-stage sort in the Filter stage, sorting by postal code. In the target Sequential File stage choose the SortMerge collector.
C. Add a second Sort stage just before the existing Sort stage; run the new stage in parallel mode sorting by postal code.
D. Move the Sort stage in front of the Filter stage, so that the sort is performed earlier in the job.

Question 3

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. 7216
B. 7220
C. 7219
D. 7221

Question 4

A job needs to split a single Data Set into three Data Sets based on conditions that are supplied at runtime. Which stage would allow you to parameterize the conditions for splitting the input data set?

A. Transformer stage
B. Filter stage
C. Switch stage
D. Split Vector stage

Question 5

Which two statements are correct about XML stages and their usage? (Choose two.)

A. XML Input stage converts XML data to hierarchical format.
B. XML Transformer stage converts an XML document to another XML hierarchical format.
C. XML Output stage converts relational tables and sequential files to XML hierarchical structures.
D. XML Input stage transforms hierarchical XSLT data to tabular format.

Solutions: