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IBM InfoSphere DataStage v8.5 Sample Questions:

1. Which condition is required to use the LastRowInGroup() function to determine a key break on a field?

A) The LastRowInGroup() function requires the data to be grouped by the key field, but the data does not have to be sorted.
B) The input data has to be sorted by the key field, but it is not required that DataStage be able to detect this. For example, the input data might be sorted before it is input to the job. (However, the job will abort at runtime if the data isn't sorted.)
C) The input data has to be sorted by the key field and DataStage must be able to detect that the data is sorted, for example, by the presence of a Sort stage.
D) The LastRowInGroup() function does not require the data to be either sorted or grouped by the key field. If necessary the LastRowInGroup() function will perform a sort.

2. Click the Exhibit button.

The job in the exhibit runs to successful completion with no warnings. However, a validation test identifies that the CUSTOMER_MASTER table is empty. You suspect the cause to be related to the NEW_CUSTOMERS table or a defect in the job. Examining runtime meta-data will help you track down the problem. Which two product features will help you isolate the cause of the problem? (Choose two.)

A) Use job run operational meta-data reports from IS Manager.
B) Show Performance Statistics in the Designer.
C) Job Monitor Tool in the Director Client
D) $APT_PM_PLAYER_STATS

3. A 100MB input dataset has even distribution across 400 unique key values.
When run with a 4-node configuration file, which two changes could improve sort performance in this scenario? (Select two)

A) Set $APT_TSORT_STRESS_BLOCKSIZE to 50M
B) Specify "Restrict Memory Usage" to 60MB on the Sort stage properties.
C) Specify Round Robin partitioning on the input link to the Sort stage.
D) Convert all numeric fields to varchars.
E) Alter the Sort stage properties to perform a stable sort.

4. You are responsible for managing job changes for you project team. You must update the source code repository through Eclipse Team source code integration whenever a developer notifies you of an asset change.
What two tasks allow you to update the source code repository with the changed asset? (Select two)

A) Right-click the asset and click the Team command to commit the artifact to the source control system.
B) Right-click the asset and click the Build command
C) Right-click the asset and click the Deploy command
D) Right-click the asset and click the Send to Source Control Work Space.

5. You are asked to convert a relational source, as shown in the exhibit, into three separate XML files. How would you accomplish this task?

A) Set "Output mode" setting "Segregate" on column "Customer ID" under "Transformation Settings" of the Output link of an XML Output stage.
B) Set "Output mode" setting "Single row" under "Transformation Settings" of the Output link of an XML Output stage.
C) Set "Output mode" setting" Split rows" under "Transformation Settings" of the Output link of an XML Output stage.
D) Set "Output mode" setting "Break" on column "Customer ID" under "Transformation Settings" of the Output link of an XML Output stage.

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