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IBM A2090-421 Exam Syllabus Topics:

IBM Assessment: InfoSphere DataStage v8.5 Sample Questions:

Question 1

Which environment variable determines where the temporary scores are stored?

A. APT_DUMP_SCORE
B. APT_JOB_MON
C. APT_SAVE_SCORE
D. APT_HIGH_SCORE

Question 2

What two data sources support direct lookups? (Select two)

A. ODBC
B. Teradata
C. DB2
D. SqIServer
E. Oracle

Question 3

You have finished changes to many Jobs and Shared containers. You must export all of your changes and integrate them into a test project with other objects. What are two ways to select the objects you changed for the export? (Select two)

A. Using the advanced find dialog, specify in the last modified panel. the date range of the jobs and appropriate user name.
B. Use Multiple Job Compile to locate objects that need to be compiled.
C. Select a folder in your repository tree, right click and choose "Objects that I last modified".
D. Sort the jobs by timestamp.

Question 4

Which two statements are accurate regarding usage of database stages? (Choose two.)

A. Plug-in stages match columns by name.
B. Database stages cannot create tables and must be done externally.
C. Native database stages match columns by name.
D. DataStage provides native Oracle database stages.

Question 5

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. 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.
B. Add a second Sort stage just before the existing Sort stage; run the new stage in parallel mode sorting by postal code.
C. Move the Sort stage in front of the Filter stage, so that the sort is performed earlier in the job.
D. 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.

Solutions: