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IBM Assessment: InfoSphere DataStage v8.5 Sample Questions:

1. A job contains a Sort stage that sorts a large volume of data across a cluster of servers. Due to new requirements, the customer has requested that this sorting be done on a subset of servers identified in the configuration file to minimize impact on database nodes. The $APT_CONFIG_FILE shows no sort disk pool for any node. Which two steps will accomplish this? (Choose two.)

A) Have an appropriate node constraint within the Sort stage.
B) Define a non-default node pool with a subset of nodes in the parallel configuration file.
C) Create a sort scratch disk pool with a subset of nodes in the parallel configuration file.
D) Assign a separate config file just for the Sort stage.
E) Use the environment variable $APT_SCRATCH_SPACE_SORT_USAGE.

2. Which three attributes are found for each segment in a Data Set descriptor file? (Select three)

A) Path names of all data files on all processing nodes.
B) Statistical information such as number of records in the segment and number of bytes.
C) Flag marking segment as valid or invalid.
D) Schema of Data Set.
E) Copy of the configuration file used when segment was created.

3. You have a job that reads in Sequential File followed by a Transformer stage. When you run this job, which partitioning method will be used by default?

A) Random
B) Hash
C) Round Robin
D) Same

4. In a Transformer expression for a stage variable, there is a nullable input column. What happens when a row is processed that contains NULL in that input column?

A) The job aborts.
B) The row is rejected.
C) The value written to the stage variable is undetermined.
D) NULL is written to the stage variable.

5. Your job is using the DB2 Enterprise stage as a target. In this job you are inserting data into a single existing table on a remote database. You are using Run-Time Column Propagation (RCP) on all of the links.
Which two job design configuration actions would you consider to effectively use RCP? (Select two)

A) Use DB2 partitioning properties on the input link to the DB2 Enterprise stage to control column layout in partitions.
B) Use a Modify stage prior to the DB2 Enterprise stage in order to drop the columns not found in the table.
C) In the DB2 Enterprise stage set the option named "Silently Drop Columns Not in Table" to "True".
D) In the DB2 Enterprise stage use Connection properties to manage column mappings.

Solutions: