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IBM Assessment: InfoSphere DataStage v8.5 Sample Questions:

1. Which three data types can the ODBC Enterprise stage handle? (Choose three.)

A) SQL_CLOB
B) SQL_BIGINT
C) SQL_VARBINARY
D) SQL_SMALLDATETIME
E) SQL_TIMESTAMP

2. When creating a Wrapper stage, which three tasks need to be done? (Select three)

A) Create Table Definitions that define the Wrapper's input and output columns.
B) Code and compile the C/C++ Wrapper source code.
C) Specify whether input rows are to be processed automatically or manually.
D) Specify the command to be executed by the Wrapper.
E) Specify how Wrapper property values are to be converted.

3. You have been given operational requirements to introduce data recovery to one of your parallel job designs. Additionally, you have been told that you are to use flat files as your intermediate data structure. Which two tasks will accomplish these objectives? (Choose two.)

A) Use the Sequential stage to export and import data between jobs.
B) Use the Hash File stage to write and read data between parallel jobs.
C) Enable checkpoint restartability in each of your parallel stages.
D) Break up the design by splitting it into at least two parallel jobs.

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

5. Which three statements are true about stage variables? (Select three)

A) Stage variables retain their values between rows in the stage.
B) Stage variables are executed after constraints but before derivations.
C) A derivation for a stage variable can reference stage variables that are later in the execution order.
D) Stage variables cannot contain NULL values.
E) Stage variables are executed before loop variables.

Solutions: