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IBM Assessment: InfoSphere DataStage v8.5 Sample Questions:

1. You are asked by your customer to collect partition level runtime meta-data for DataStage Parallel jobs. You must collect this data after each job completes. What two options allow you to automatically save row counts and CPU time for each instance of an operator? (Select two)

A) Enable the job property "Record job performance data".
B) $APT_PM_PLAYER_TIMINGS
C) Enable the job property "Log report messages after each job run".
D) $APT_PERFORMANCE_DATA

2. You write a job control routine to control a sequence of jobs running as a single unit of work. What are three valid job status types you can trap for? (Choose three.)

A) DSJS.START
B) DSJS.RUNERROR
C) DSJS.STOPPED
D) DSJS.RUNFAILED
E) DSJS.RUNOK

3. A job validates credit card numbers with a reference file using a Join stage, which is hash partitioned by card number. Examination of Job Monitor reveals that some partitions process many more rows than others. Assuming adequate hardware resources, which action can be used to improve the performance of the job?

A) Alter the number of partitions in the $APT_CONFIG_FILE.
B) Replace the Join with a Merge stage.
C) Break the input file into multiple files.
D) Use Round Robin partitioning on the stream and Entire partitioning on the reference.

4. You found there were common functional requirements in the data mapping specification. The required functions are same but the record formats are different. Which action will allow you to effectively implement common logic?

A) Create parallel shared containers with Runtime Column Propagation (RCP) ON and define only necessary columns needed for the logic.
B) Create parallel routines.
C) Create parallel shared containers and define columns combining all data formats.
D) Create separate jobs and choose appropriate job within a job sequence.

5. There is a requirement to load mainframe data with array columns having redefined fields into a flat file. How can the Complex Flat File

A) Select the Records ID tab on the Stage page. Select a record from the Records list. Select the column(s) with the redefine from the Column list. Within CFF, use the Complex File Load Option window with "Flatten selective arrays" option selected.
B) CFF does not support flattening for redefined fields.
C) Within CFF, use the Complex File Load Option window with "Flatten all arrays" option selected. CFF will handle flattening automatically.
D) Within CFF, use the Complex File Load Option window with "Flatten selective arrays" option selected. Select the array with redefine column(s) and click redefine check box option.

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