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IBM C2090-421 Exam Syllabus Topics:

IBM InfoSphere DataStage v8.5 Sample Questions:

1. To better understand the data flowing through a job, it is desirable to have structural information about the datasets captured in the job log. Which environment variable can provide this information?

A) $OSH_PRINT_SCHEMAS
B) $APT_NO_PART_INSERTION
C) $OSH_STDOUT_MSG
D) $APT_PM_PLAYER_MEMORY

2. Which two features of Data Sets make them suitable for job restart points? (Choose two.)

A) They are compressed to minimize storage space.
B) They are indexed to improve access.
C) They are persistent.
D) They use the same data types as the parallel framework.

3. 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 Information Server Manager use Search with advanced options, specify a date modified and the developer's user name 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 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.
D) From the Information Server Manager Select the project then right-click on Synchronize with source code control system.

4. Your job sequence must be restartable. It runs Job1, Job2, and Job3 serially. It has been compiled with "Add checkpoints so sequence is restartable". Job1 must execute every run even after a failure. Which two properties must be selected to ensure that Job1 is run each time, even after a failure? (Choose two.)

A) Set the Job1 Activity stage to "Do not checkpoint run.".
B) Use the Nested Condition Activity with a trigger leading to Job1; set the trigger expression type to "Unconditional".
C) In the Job1 Activity stage set the Execution action to "Reset if required, then run.".
D) Set trigger on the Job1 Activity stage to "Unconditional".

5. In which two situations is it appropriate to use a Sparse Lookup? (Choose two.)

A) When the output of the Lookup stage needs to be hashed partitioned.
B) When invoking a stored procedure within a database per row in the streaming link.
C) When reference data is significantly larger than the streaming data (100:1).
D) When accessing DB2 data using the DB2 API stage.

Solutions: