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IBM Assessment: InfoSphere DataStage v8.5 Sample Questions:

1. 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) Filter stage
B) Split Vector stage
C) Transformer stage
D) Switch stage

2. What Information Server tool provides integration with source code control repositories?

A) DataStage Designer
B) Information Server Manager
C) Multiple Job Compile
D) Information Services Director

3. You are setting up project defaults. Which three items can be set in DataStage Administrator? (Choose three.)

A) default for Runtime Column Propagation
B) suite roles
C) default prompting options, such as Autosave job before compile
D) default for compile options
E) defaults for environment variables

4. Which option is required to identify a particular job player processes?Which option is required to identify a particular job? player processes?

A) Set $APT_PM_SHOW_PIDS to true.
B) Use the DataStage Director Job administration screen to display active player processes.
C) Log onto the server and issue the command "ps -ef | grep ds".
D) Set $APT_DUMP_SCORE to true.

5. Your job runs slowly and does not scale beyond two nodes. It appears the data has been partitioned on the DoNotCall flag, which has accumulating totals based on this flag using a sort method.
Which technique would improve scalability and performance?

A) Change the preserve partitioning option on the stage ahead of the aggregator to clear partitioning.
B) Add an additional column for partitioning to result in additional data partitions.
C) Change the partitioning method to Round Robin; add a second Aggregator stage with Execution mode 'Sequential' and
D) Increase the number of physical nodes available for partitioning.

Solutions: