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IBM C2090-421 Exam Syllabus Topics:

IBM InfoSphere DataStage v8.5 Sample Questions:

1. You have finished changes to many Jobs and Shared containers. You must export all of your changes and integrate them into a test project with other objects. What are two ways to select the objects you changed for the export? (Select two)

A) Select a folder in your repository tree, right click and choose "Objects that I last modified".
B) Sort the jobs by timestamp.
C) Use Multiple Job Compile to locate objects that need to be compiled.
D) Using the advanced find dialog, specify in the last modified panel. the date range of the jobs and appropriate user name.

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

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

3. In which two operations can you create DataStage projects? (Choose two.)

A) When exporting and importing a DataStage project from DataStage Director.
B) During DataStage installation.
C) When adding new projects from DataStage Administrator.
D) When creating a project in the IBM Information Server Console.

4. You have a 3TB dataset hash-partitioned on CustID in a clustered environment. You need to join this dataset with 1GB of reference data on OrderID. Which technique is most appropriate?

A) Use Join stage, hash-partition and sort both link on OrderID.
B) Use Lookup stage, select auto partitioning for both link.
C) Use Lookup stage, select auto partitioning for the stream link and entire partitioning for the reference link.
D) Use Lookup stage, select auto partitioning for the stream link and hash-partition the reference link on CustI

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) 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.

Solutions: