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IBM InfoSphere DataStage v9.1 Sample Questions:

1. You are asked by management to document all jobs written to make future maintenance easier. Which statement is true about annotations?

A) The Description Annotation stage contains both the short and full descriptions for the job.
B) The Description Annotation stage can be added several times at different locations to identify business logic.
C) The short job description can be identified within the Description Annotation stage.
D) The background for the Description Annotation stage can be changed for each unique stage.

2. A job design reads from a complex flat file, performs some transformations on the data, and outputs the results to a ISD output stage. How can the parameter values can be passed to this job at run-time?

A) Change the properties of the information provider.
B) Execute a DSSetParam with the values at job execution time.
C) Include the parameter values in the data.
D) Pass the parameter values at the time of the service request.

3. A job validates account numbers with a reference file using a Join stage, which is hash partitioned by account number. Runtime monitoring reveals that some partitions process many more rows than others. Assuming adequate hardware resources, which action can be used to improve the performance of the job?

A) Change the number of nodes in the configuration file.
B) Use Round Robin partitioning on the stream and Entire partitioning on the reference.
C) Add a Sort stage in front of the Join stage. Sort by account number.
D) Replace the Join with a Merge stage.

4. In your parallel job design you have selected a parallel shared container to be included. Which area of your job design is required to be configured to use the parallel shared container?

A) Configure the job name reference the parallel shared container originates from.
B) Configure the number of input and/or output links to support the parallel shared container.
C) Configure your job properties General tab "Allow Container" option to be True.
D) List the jobs that will be allowed to use the container.

5. Which two statements are true about the use of named node pools? (Choose two.)

A) When named node pools are used, DataStage uses named pipes between stages.
B) Named node pools constraints will limit stages to be executed only on the nodes defined in the node pools.
C) Named node pools limit the total number of partitions that can be specified in the configuration file.
D) Named node pools can allow separation of buffering from sorting disks.
E) Grid environments must have named node pools for data processing.

Solutions: