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IBM InfoSphere DataStage v8.5 Sample Questions:

1. DataStage offers database connectivity through connectors, native parallel and plug-in stage types. Which two statements are correct? (Choose two.)

A) For maximum parallel performance, scalability, and features it is best to use the native parallel database stages.
B) The connector stage offers better functionality and performance and is the best to use.
C) Next to the connector stage it is best to use the native parallel database stages.
D) ODBC API is a plug-in stage.

2. To better understand the data flowing through a job, it is desirable to have structural information about the datasets captured in the job log. Which environment variable can provide this information?

A) $OSH_PRINT_SCHEMAS
B) $OSH_STDOUT_MSG
C) $APT_PM_PLAYER_MEMORY
D) $APT_NO_PART_INSERTION

3. Which three statements are true about File Sets? (Choose three.)

A) File sets are partitioned.
B) File sets are readable by external applications.
C) File sets always execute in parallel.
D) File sets are stored as header file and data files.
E) File sets have a proprietary data format which may change in future DataStage versions.

4. Records in a source file must be copied to multiple output streams for further processing. Which two conditions would require the use of a Transformer stage instead of a Copy stage? (Choose two.)

A) Concatenating data from multiple input columns.
B) Converting some input columns from integers to strings.
C) Directing selected output records down one output link rather than another.
D) Renaming one or more output columns.

5. A scenario requires selecting only the most recent transactions 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) Using the DB2 API stage, select all rows. Use a Sort stage with customer number and order date sort keys in ascending order, then Remove Duplicates with Last Duplicate to retain.
B) Using the DB2 Enterprise stage, select all rows. Perform a unique Sort using customer number and order date sort keys in ascending order.
C) Select all rows using the ODBC Connector stage, use a Sort Aggregator on customer number key to select the maximum order date.
D) Using the Dynamic Relational stage, use custom SQL to select all DISTINCT customer numbers from the order history table.

Solutions: