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IBM C2090-421 Exam Syllabus Topics:

IBM InfoSphere DataStage v8.5 Sample Questions:

1. In the job fragment shown in the exhibit, there are two Sort stages: the first (Sort1) sorts the data by state, the second (Sort2) sorts the data by state and area, No repartitioning occurs between the stages.
You have been asked to reduce the number of sorts to improve the performance of the job.

Which two ways might be used to accomplish this without changing how the job functions? (Select two)

A) Remove the second Sort stage. Add area as an additional sort key.
B) Remove the first Sort stage. Retain the existing sort keys in the second Sort stage.
C) In the second Sort stage change the Sort Mode property of the state column to "Don't sort, previously sorted.".
D) In the second Sort stage change the Sort Mode property of the area column to "Don't sort, previously sorted.".

2. You would like to run a particular processing job within a job sequence for each weekday of the week. How could you do this? (Select two)

A) Set the frequency property in the job scheduler to weekdays only.
B) Start Loop and End Loop activity stages on the job sequencer canvas where you loop through the days and pass a value for each day into the job via parameter.
C) Call a routine in the job sequencer that starts the processing job for each day you would like to process.
D) Have a parameter set that contains the days of the week you would like to process and routine to parse the days of the week contained in the "day" parameter.

3. Which three environment variables are valid job score environment variables? (Select three)

A) APT_THIN_SCORE
B) APT_DUMP_SCORE
C) APT_LOW_SCORE
D) APT JAVA SCORE
E) APT_SAVE_SCORE

4. You are asked to identify the jobs and shared containers that use the ADDRESS column. The Size has changed from 50 to 120 characters in the source system so the jobs must be updated with the new size. What feature of the Designer will locate where a column is used in a DataStage project?

A) From Designer Tools open an Advanced Find dialog. Select Columns from the Type list and enter the column name in the Name To Find field.
B) From Designer Tools, open an Advanced Find dialog. Enter the column name in the Name to find field. Select Jobs and Shared Containers from the Type to find list.
C) Select a Table Definition, then right click and choose Find where column is used. Select the column to search for from the list.
D) Open the Table Definition properties, Select the ADDRESS column, then right click and select Find where used.

5. Which two statements are true about the use of named node pools? (Choose two.)

A) Using appropriately named node pools forces DataStage to use named pipes between stages.
B) Clustered environments must have named node pools for data processing.
C) Named node pools can allow separation of buffering from sorting disks.
D) Named node pools constraints will limit stages to be executed only on the nodes defined in the node pools.

Solutions: