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IBM Websphere Datastage V.8.0 Sample Questions:

1. What is the lowest cost partitioning method for parallel stage to sequential stage?

A) Ordered
B) SortMerge
C) Entire
D) Round Robin

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

3. Your job reads from a file using a Sequential File stage running sequentially. You are using a Transformer stage following the Sequential File stage to format the data in some of the columns. What is the default (Auto) partitioning method?

A) Random
B) Hash
C) Same
D) Round Robin

4. A job design reads from a complex flat file, performs some transformations on the data, and outputs the results to a WISD output stage. What are two ways that parameter values can be passed to this job at run-time? (Choose two.)

A) Pass the parameter values at the time of the service request.
B) Execute a DSSetParam with the values at job execution time.
C) Change the properties of the information provider and redeploy.
D) Include the parameter values in the data.

5. Which feature does the Merge stage have that is not available in the Join and Lookup stages?

A) Input data may be unsorted.
B) No more than one reject link may be specified.
C) Several reject links may be specified.
D) All inputs must be sorted.

Solutions: