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IBM Websphere Datastage V.8.0 Sample Questions:

1. What are two tasks that can create DataStage projects? (Choose two.)

A) Export and import a DataStage project from DataStage Director.
B) Create a project in the IBM Information Server Console.
C) Add new projects from DataStage Administrator.
D) Install the DataStage engine.

2. In which two situations is it appropriate to use a Sparse Lookup? (Choose two.)

A) When the output of the Lookup stage needs to be hashed partitioned.
B) When accessing DB2 data using the DB2 API stage.
C) When reference data is significantly larger than the streaming data (100:1).
D) When invoking a stored procedure within a database per row in the streaming link.

3. Your customer uses a third-party application to load their proprietary RDBMS. This application can read data from flat files, named pipes (FIFOs), and standard input (STDIN). You are assigned to write a job to prepare data for the database. Which two would result in the least amount of file system I/O between your job and the third-party application? (Choose two.)

A) Write to a named pipe, which is read by the application.
B) Write to an External Target, which is read by the application.
C) Write to a File Set, which is read by the application.
D) Write to a Sequential File, which is read by the application.

4. Click the Exhibit button.
The job shown in the exhibit combines data from 50 million parts and a 30,000 suppliers in the same Oracle instance, writing the 50 million output rows to a single target DB2 database. Which two changes can be made to improve performance of the given job design? (Choose two.)

A) Replace the target DB2 Enterprise stage with a DB2 API stage.
B) Replace the Oracle Enterprise stages with Oracle API stages.
C) Replace the two source Oracle stages and Join with a single Oracle stage using a SQL join between the two tables.
D) Replace the Join stage with a Lookup stage.

5. A 100 MB input data set has even distribution across 400 unique key values. When run with a 4-node configuration file, which two changes could improve sort performance for this scenario? (Choose two.)

A) Set $APT_TSORT_STRESS_BLOCKSIZE to 50 MB.
B) Alter the Sort stage properties to perform a Stable sort.
C) Specify Round Robin partitioning on the input link to the Sort stage.
D) Specify "Restrict Memory Usage" to 60 MB on the Sort stage properties.

Solutions: