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IBM InfoSphere DataStage v8.5 Sample Questions:

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

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

2. Your job is using the DB2 Enterprise stage as a target. In this job you are inserting data into a single existing table on a remote database. You are using Run-Time Column Propagation (RCP) on all of the links.
Which two job design configuration actions would you consider to effectively use RCP? (Select two)

A) In the DB2 Enterprise stage set the option named "Silently Drop Columns Not in Table" to "True".
B) Use a Modify stage prior to the DB2 Enterprise stage in order to drop the columns not found in the table.
C) In the DB2 Enterprise stage use Connection properties to manage column mappings.
D) Use DB2 partitioning properties on the input link to the DB2 Enterprise stage to control column layout in partitions.

3. 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) Select all rows using the ODBC Connector stage, use a Sort Aggregator on customer number key to select the maximum order date.
B) 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.
C) Using the Dynamic Relational stage, use custom SQL to select all DISTINCT customer numbers from the order history table.
D) Using the DB2 Enterprise stage, select all rows. Perform a unique Sort using customer number and order date sort keys in ascending order.

4. In a Transformer Stage you have a nullable input column that is mapped to a non-nullable output column. What two techniques can be used to handle NULL values? (Choose two.)

A) NullToValue(input_column, 'unknown').
B) IF input_column = '' THEN 'unknown' ELSE input_column.
C) IF IsNULL(input_column) THEN 'unknown' ELSE input_column.
D) IF input_column = NULL THEN 'unknown' ELSE input_column.

5. You are given a job requirement that requires calculations based on the latest currency exchange rate. You decide to invoke a Web service to obtain the latest exchange rate.
What are two ways that you can perform a Web service invocation in a DataStage job to obtain the latest exchange rate? (Select two)

A) Use Web Services Client stage as a lookup.
B) Use Web Services Transformer stage.
C) Call a Web Service using a DSRoutine inside the Parallel Transformer stage.
D) Use WISD Input stage.

Solutions: