Exam Name: InfoSphere DataStage v8.5
Certification Provider: IBM
Corresponding Certification: IBM Specialist
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IBM : C2090-421 Exam Premium Dumps
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IBM C2090-421 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Performance and Tuning | 20% | - Buffer and sort tuning - Job optimization and scaling - Resource management |
| Administration and Deployment | 10% | - Job packaging and deployment - Version control and migration - Monitoring and logging |
| Job Design and Development | 30% | - Transformer and derivation logic - Stage configuration and properties - Parallel job design principles - Partitioning and collecting methods |
| Data Integration and Connectivity | 15% | - Specialized stages and connectors - File handling and formats - Database connectivity and stages |
| Environment and Configuration | 25% | - Project setup and administration - Configuration files and environment variables - Distributed and asymmetric environments |
IBM InfoSphere DataStage v8.5 Sample Questions:
A job needs to split a single Data Set into three Data Sets based on conditions that are supplied at runtime. Which stage would allow you to parameterize the conditions for splitting the input data set?
- A. Filter stage
- B. Split Vector stage
- C. Switch stage
- D. Transformer stage
Correct Answer: A 🗳️
A DataStage job uses an Inner Join to combine data from two source parallel datasets that were written to disk in sort order based on the join key columns. Which two methods could be used to dramatically improve performance of this job? (Choose two.)
- A. Explicitly specify hash partitioning and sorting on each input to the Join stage.
- B. Add a parallel sort stage before each Join input, specifying the "Don't Sort, Previously Grouped" sort key mode for each key.
- C. Disable job monitoring.
- D. Set the environment variable $APT_SORT_INSERTION_CHECK_ONLY.
- E. Unset the Preserve Partitioning flag on the output of each parallel dataset.
Correct Answer: B,D 🗳️
You have a dataset hash-partitioned and sorted on CustID. You need to create a Sequential File sorted on CustID from this dataset. Which technique is the most appropriate?
- A. Use SortMerge collector for the Sequential File input link.
- B. Use Copy stage.
- C. Insert Sort stage before the final Sequential File stage and use Round Robin collector for the Sequential File stage input link.
- D. Insert Sort stage before the final Sequential File stage and use Ordered collector for the Sequential File stage input link.
Correct Answer: A 🗳️
Click the exhibit button.
You submit a job from DataStage Director and then log onto your DataStage Linux server to issue the command "ps -ef | grep ds" and receive the following screen: Which process is a player?
- A. 7216
- B. 7217
- C. 7215
- D. 7117
Correct Answer: B 🗳️
What are two ways to specify a stylesheet in an XML input stage? (Choose two.)
- A. On the output link columns properties tab, type the stylesheet in the XLST box.
- B. On the output link advanced properties tab, type the stylesheet in the Stylesheet box.
- C. On the output link columns properties tab, identify an input column that contains the stylesheet URL.
- D. On the output link advanced properties tab, load the content or path of a stylesheet that is stored on the engine tier host.
Correct Answer: B,D 🗳️
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