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IBM InfoSphere DataStage v8.5 Sample Questions:

1. Which three of the following are valid schema formats? (Choose three.)

A) Raw Columns
B) Aggregator Columns
C) Integer Columns
D) Total Columns
E) Decimal Columns

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

3. You would like to pass values into parameters that will be used in a variety of downstream activity stages within a job sequence. What are three valid ways to do this? (Choose three.)

A) Check the "Propagate Parameters" checkbox in the Sequence Job properties.
B) Use the UserVariablesActivity Stage to populate the local parameters from an outside source such as a file.
C) Use local parameters.
D) Place a parameter set stage on the job sequence.
E) Use environment variables.

4. You are required to use a Make Vector stage in your job. What three requirements must be met in order to use this stage? (Choose three.)

A) All columns are combined into a vector of the same length as the number of columns.
B) Input columns must form a numeric sequence.
C) Columns must be in consecutive order.
D) Input columns that do not have a name of form <column_name>0 to <column_name>n, where <column_name> is the column name and 0 and n are the first and last of its consecutive numbers will not be included in the vector and will be dropped.
E) Input columns must all be of the same data type.

5. You have run ten instances of the same job the previous evening. You want to examine the job logs for all instances but can only find five of them. How can you avoid this in the future for this job?

A) Change the Auto-purge settings in Administrator.
B) Change the Auto-purge settings for the job in Director.
C) Set the $APT_AUTOPURGE_LOG environment variable to False.
D) Set the $APT_AUTOLOG_PURGE environment variable to False.

Solutions: