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IBM C2090-418 Exam Syllabus Topics:

IBM Websphere Datastage V.8.0 Sample Questions:

Question 1

Which three defaults are set in DataStage Administrator? (Choose three.)

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

Question 2

Which two properties can be set to read a fixed width sequential file in parallel? (Choose two.)

A. Set the "Read from Multiple Nodes" optional property to a value greater than 1.
B. Set the "Number of Readers Per Node" optional property to a value greater than 1.
C. Set the Execution mode to "Parallel".
D. Set Read Method to "File Pattern".

Question 3

A customer wants to select the entire order details for the largest transaction for each of 2 million unique customers from a 20 million row DB2 source table containing order history. Which parallel job design would satisfy this functional requirement?

A. Partition and Sort the input to a Remove Duplicates stage using the customer key and transaction amount columns. Remove duplicates on customer key.
B. Partition on customer key, sort on customer key and transaction amount, Remove duplicates on customer key.
C. Partition and Sort the input to a Filter stage by customer number. Filter with the clause "MAX(transaction_amount)".
D. Use a Sort Aggregator stage with a calculated column based on the maximum value of the transaction amount column.

Question 4

Which three actions can improve sort performance in a DataStage job? (Choose three.)

A. Specify only the key columns which are necessary.
B. Minimize the number of sorts used within a job flow.
C. Adjusting the "Restrict Memory Usage" option in the Sort stage.
D. Use the stable-sort option to avoid the random ordering of non-key data.
E. Run the job sequentially so that only one sort process is invoked.

Question 5

A customer's business requirement states that the processing of a file must be aborted immediately if a certain condition is encountered within that file. How would this be accomplished within a Transformer stage?

A. Issue a warning message to be picked up by the Job Sequence condition.
B. Set the $APT_ABORT_ON_BAD_CONDITION environment variable.
C. Use a constraint and the "Abort After Rows" property on an output link.
D. Call a non-existent external UNIX function from within a stage variable definition.

Solutions: