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IBM C2090-421 Exam Syllabus Topics:

IBM InfoSphere DataStage v8.5 Sample Questions:

Question 1

A job reads from a sequential file using a SequentialFile stage with option "number of readers" set to 2. This data goes to a Transformer stage and then is written to a dataset using the DataSet stage. The default configuration file has three nodes. The environment variable $APT_DISABLE_COMBINATION is set to "True" and partitioning is set to "Auto". How many processes will be created?

A. 5
B. 12
C. 7
D. 9

Question 2

A client has multiple servers connected with a high bandwidth switch and has installed DataStage on one of them. There are five files (with the same record layout) that must be retrieved from three other servers using FTP. Which approach will retrieve and process all five files in the minimal amount of time?

A. Create a sequence containing five separate DataStage jobs which each retrieve a single file and append it to a common Data Set. Next, process the resulting Data Set in an sixth DataStage job.
B. Use a single FTP Enterprise stage and specify five URI properties (one for each file). Next, process the records without landing to disk.
C. In a single job, use three separate FTP Enterprise stages (one for each machine) with output links to a single Sort Funnel stage. Next, process the records without landing to disk.
D. In a single job, use five separate FTP Enterprise stages with output links to a single Sort Funnel stage. Next, process the records without landing to disk.

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. 7221
B. 7219
C. 7216
D. 7220

Question 4

What would help debug the run-time environment?

A. View detailed runtime stats through Job monitor in Director Client.
B. $OSH_PRINT_SCHEMAS
C. Check the message filters for the job.
D. $APT_VERBOSE

Question 5

How does the Complex Flat File stage (CFF) support the use of "OCCURS DEPENDING ON" clause?

A. The related elements are output as denormalized fields.
B. CFF does not support this clause.
C. The related elements are output as arrays.
D. The related elements are output as subrecords.

Solutions: