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IBM A2090-421 Exam Syllabus Topics:

IBM Assessment: InfoSphere DataStage v8.5 Sample Questions:

1. A dataset was created earlier with one partition, with the Preserve Partitioning flag set. A subsequent job using a 2-node configuration file reads from that dataset, passing data to a Transformer stage with "Same" partitioning.
Which two statements are true? (Select two)

A) Inserting a Sort stage prior to the Transformer stage will force its parallel execution.
B) DataStage will repartition the data and run one instance of the Transformer stage.
C) Setting the Preserve Partitioning flag to "Set" will run one instance of the Transformer stage.
D) The DataStage job will abort.
E) Setting the Preserve Partitioning flag to "Clear" will generate two instances of the Transformer stage.

2. You are required to use a Make Vector stage in your job. What three requirements must be met in order to use this stage? (Choose three.)

A) Input columns must all be of the same data type.
B) Input columns that do not have a name of form <column_name>0 to <column_name>n, where <column_name> is the column name and 0 and n are the first and last of its consecutive numbers will not be included in the vector and will be dropped.
C) Columns must be in consecutive order.
D) All columns are combined into a vector of the same length as the number of columns.
E) Input columns must form a numeric sequence.

3. You have been asked to delete a shared container from the project by your customer. Before you do this you want to make sure it will not impact other objects in the project. How will you ensure that deleting the shared container will not cause a failure when jobs are recompiled?

A) Advanced find, set Dependencies Of field equal to the container name, and Check the Option to Include nested results for Dependency searches.
B) Select the shared container, Right-click on the Where used (deep) command.
C) Select the shared container, Right-click on the Dependencies (deep) command.
D) Select the shared container, Right-click on the Where used command.

4. Which two statements are true about project-level configuration for National Language Support (NLS)? (Select two)

A) Choose NVarChar for string fields.
B) Choose appropriate NLS map in the stage property.
C) Change the Parallel job project locale.
D) Change the Parallel job project map.

5. The Teradata Enterprise stage uses a distributed FastExport to access data. What is a limitation to distributed FastExport?

A) Multiple-AMP requests are allowed.
B) The use of the USING modifier is allowed.
C) Aggregates and most arithmetic operators in the SELECT statement are allowed.
D) Non-data access (e.g., pseudo-tables like DATE or USER) is allowed.

Solutions: