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質問 1：
What two project environment variables can be considered in your parallel jobs to support your optimization strategy of partitioning and sorting? (Choose two.)
A. $APT_RESTRICT_SORT_USAGE
B. $APT_NO_PART_INSERTION
C. $APT_PARTITION_FLUSH_COUNT
D. $APT_TSORT_STRESS_BLOCKSIZE
E. $APT_OPT_SORT_INSERTION
正解：B,D
質問 2：
A job using a one-node configuration file writes to a target Sequential File stage. The target Sequential File stage has been set to write to three different sequential files. How many instances of the Sequential File stage will run in parallel?
A. The job will abort, because a configuration file with at least three nodes is required.
B. One.
C. Two.
D. Three.
正解：D
質問 3：
Which two statements are true about stage variables in a Transformer Stage? (Choose two.)
A. Stage variables cannot be set to NULL.
B. Stage variables can be set to NULL.
C. A stage variable in one Transformer can refer to a stage variable in another Transformer, as long as the second Transformer was processed earlier in the job flow.
D. Varchar stage variables can be initialized with spaces.
E. Stage variables are refreshed with default values before each new input row is processed.
正解：B,D
質問 4：
The effective use of naming conventions means that objects need to be spaced appropriately on the DataStage Designer canvas. For stages with multiple links,expanding the icon border can significantly improve readability. This approach takes extra effort at first, so a pattern of work needs to be identified and adopted to help development. Which feature of Designer can improve development speed?
A. Show Performance Statistics Feature
B. Palette Layout
C. Repository Layout
D. Snap to Grid Feature
正解：D
質問 5：
When optimizing a job, Balanced Optimization will NOT search the job for what pattern?
A. Links
B. Stages
C. Property Settings
D. Sequencers
正解：D
質問 6：
What is the purpose of the APT_DUMP_SCORE environment variable?
A. It is an environment variable that enables the collection of runtime performance statistics.
B. It is a reporting environment variable that adds additional runtime information in the job log.
C. There is no such environment variable.
D. It is an environment variable that turns on the job monitor.
正解：B
What two project environment variables can be considered in your parallel jobs to support your optimization strategy of partitioning and sorting? (Choose two.)
A. $APT_RESTRICT_SORT_USAGE
B. $APT_NO_PART_INSERTION
C. $APT_PARTITION_FLUSH_COUNT
D. $APT_TSORT_STRESS_BLOCKSIZE
E. $APT_OPT_SORT_INSERTION
正解：B,D
質問 2：
A job using a one-node configuration file writes to a target Sequential File stage. The target Sequential File stage has been set to write to three different sequential files. How many instances of the Sequential File stage will run in parallel?
A. The job will abort, because a configuration file with at least three nodes is required.
B. One.
C. Two.
D. Three.
正解：D
質問 3：
Which two statements are true about stage variables in a Transformer Stage? (Choose two.)
A. Stage variables cannot be set to NULL.
B. Stage variables can be set to NULL.
C. A stage variable in one Transformer can refer to a stage variable in another Transformer, as long as the second Transformer was processed earlier in the job flow.
D. Varchar stage variables can be initialized with spaces.
E. Stage variables are refreshed with default values before each new input row is processed.
正解：B,D
質問 4：
The effective use of naming conventions means that objects need to be spaced appropriately on the DataStage Designer canvas. For stages with multiple links,expanding the icon border can significantly improve readability. This approach takes extra effort at first, so a pattern of work needs to be identified and adopted to help development. Which feature of Designer can improve development speed?
A. Show Performance Statistics Feature
B. Palette Layout
C. Repository Layout
D. Snap to Grid Feature
正解：D
質問 5：
When optimizing a job, Balanced Optimization will NOT search the job for what pattern?
A. Links
B. Stages
C. Property Settings
D. Sequencers
正解：D
質問 6：
What is the purpose of the APT_DUMP_SCORE environment variable?
A. It is an environment variable that enables the collection of runtime performance statistics.
B. It is a reporting environment variable that adds additional runtime information in the job log.
C. There is no such environment variable.
D. It is an environment variable that turns on the job monitor.
正解：B
Yamaguchi -
無駄なく効率よく短時間でA2090-303合格レベルに到達することができるから。このA2090-303本で簡単に解き方を理解することが出来ました。