IBM C2090-418 : IBM Websphere Datastage V.8.0

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IBM C2090-418 Exam Syllabus Topics:

IBM Websphere Datastage V.8.0 Sample Questions:

Question 1

Which two steps are required to change from a normal lookup to a sparse lookup in an ODBC Enterprise stage? (Choose two.)

A. Change the lookup option in the stage properties to "Sparse".
B. Replace columns at the beginning of a SELECT statement with a wildcard asterisk (*).
C. Establish a relationship between the key field column in the source stage with the database table field.
D. Sort the data on the reference link.

Question 2

You are working on a job in which a sequential file cannot be read in parallel. In an attempt to improve job performance, you first define a single large string column for the non-parallel sequential file read. Which stage may be used to parse the large string in parallel?

A. The Column Export stage
B. The Split Vector stage
C. The Column Import stage
D. The Make Vector stage

Question 3

Which three statements are true about stage variables? (Choose three.)

A. Expressions evaluating a variable can include other variables or the variable being evaluated itself.
B. Stage variables can be initialized with spaces.
C. Stage variables can be set to null.
D. Stage variables are executed in order from top to bottom.
E. Stage variables can be defined either global to the job or local to the stage.

Question 4

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

Question 5

Which three are supported by the Slowly Changing Dimensions (SCD) stage? (Choose three.)

A. Inserts into a dimension table.
B. Type two upserts to a dimension table.
C. Type three updates to a dimension table.
D. Type two updates to a dimension table.
E. Type one updates to a dimension table.

Solutions: