최신 IBM Specialist 000-421 무료샘플문제:
1. In the job fragment shown in the exhibit, the data going into the target Sequential File stage needs to be sorted by postal code. The Sort stage accomplishes this by running in Sequential mode and sorting by postal code. You have been asked to improve the performance of the job with a 4-node configuration file.
Which two changes will improve the performance of the job? (Choose two.)
A) Change the mode of the existing Sort stage to parallel mode; continue to sort by postal code. In the target Sequential File stage choose the SortMerge collector.
B) Eliminate the existing Sort stage; define an in-stage sort in the Filter stage, sorting by postal code. In the target Sequential File stage choose the SortMerge collector.
C) Move the Sort stage in front of the Filter stage, so that the sort is performed earlier in the job.
D) Add a second Sort stage just before the existing Sort stage; run the new stage in parallel mode sorting by postal code.
2. In a Transformer expression for a stage variable, there is a nullable input column. What happens when a row is processed that contains NULL in that input column?
A) NULL is written to the stage variable.
B) The value written to the stage variable is undetermined.
C) The job aborts.
D) The row is rejected.
3. 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 trigger on the Job1 Activity stage to "Unconditional".
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 the Job1 Activity stage to "Do not checkpoint run.".
4. How is Runtime Column Propagation (RCP) enabled for use in DataStage Jobs?
A) Use the Info Server web console to enable RCP
B) RCP is by default available for all DataStage Projects.
C) Use the DataStage Administrator to enable RCP for the project.
D) Use RCP definition wizard to initialize RCP for project use.
E) Set the APT_ENABLE_RCP environment variable to TRUE.
5. When you configure a domain for source code integration a source control workspace is created. What are two reasons for the source control workspace? (Choose two.)
A) provides a place to store the archive created by IS source code control integration
B) default directory for istool exports.
C) directory for deployment package files
D) local transfer area for assets being submitted to the source control system
질문과 대답:
| 질문 # 1 정답: A,B | 질문 # 2 정답: A | 질문 # 3 정답: C,D | 질문 # 4 정답: C | 질문 # 5 정답: A,D |
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