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IBM 000-421 Exam Syllabus Topics:

IBM InfoSphere DataStage v8.5 Sample Questions:

1. You are responsible for the projects Source Code Repository. When a developer notifies you that changes are ready to deploy you must first check them in. You will use the Information Server Source Code integration features to check in the changed assets. How will you identify the DataStage assets the developer modified in order to send them to the workspace?

A) From the workspace perspective select the project Right-click then Refresh from repository, specify a modification date and the developer's username in the Modified by fields.
B) Use Designer client Advanced Find, specify a modification date and the developer's username in the Modified by fields.
C) From the Information Server Manager Select the project then right-click on Synchronize with source code control system.
D) From Information Server Manager use Search with advanced options, specify a date modified and the developer's user name in the Modified by fields.

2. How is Runtime Column Propagation (RCP) enabled for use in DataStage Jobs?

A) Set the APT_ENABLE_RCP environment variable to TRUE.
B) Use the DataStage Administrator to enable RCP for the project.
C) Use the Info Server web console to enable RCP
D) RCP is by default available for all DataStage Projects.
E) Use RCP definition wizard to initialize RCP for project use.

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

4. What two data sources support direct lookups? (Select two)

A) Teradata
B) Oracle
C) DB2
D) SqIServer
E) ODBC

5. The derivation for a stage variable is: Upcase(input_column1) : ' ' : Upcase(input_column2). Suppose that input_column1 contains a NULL value. Which behavior is expected?

A) The job aborts.
B) The target stage variable is populated with spaces or zeros depending on the stage variable data type.
C) NULL is written to the target stage variable.
D) The input row is either dropped or rejected depending on whether the Transformer has a reject link.

Solutions: