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IBM A2090-421 Q&A - in .pdf
- Exam Code: A2090-421
- Exam Name: Assessment: InfoSphere DataStage v8.5
- Updated: Sep 05, 2026
- Q & A: 194 Questions and Answers
- PDF Price: $59.99
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IBM A2090-421 Q&A - Testing Engine
- Exam Code: A2090-421
- Exam Name: Assessment: InfoSphere DataStage v8.5
- Updated: Sep 05, 2026
- Q & A: 194 Questions and Answers
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IBM A2090-421 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Job Execution and Troubleshooting | - Monitoring and debugging
|
| DataStage Architecture | - InfoSphere DataStage components
|
| Data Transformation and ETL Logic | - Data mapping and transformation rules
|
| Job Design and Development | - Stages and links
|
| Performance and Parallelism | - Parallel processing concepts
|
IBM Assessment: InfoSphere DataStage v8.5 Sample Questions:
Question #1
A scenario requires selecting only the most recent transactions for each of 2 million unique customers, from a 20 million row DB2 source table containing order history. Which parallel job design would satisfy this functional requirement?
- A. Using the DB2 Enterprise stage, select all rows. Perform a unique Sort using customer number and order date sort keys in ascending order.
- B. Using the Dynamic Relational stage, use custom SQL to select all DISTINCT customer numbers from the order history table.
- C. Using the DB2 API stage, select all rows. Use a Sort stage with customer number and order date sort keys in ascending order, then Remove Duplicates with Last Duplicate to retain.
- D. Select all rows using the ODBC Connector stage, use a Sort Aggregator on customer number key to select the maximum order date.
Answer: C
Question #2
You are responsible for the projects Source Code Repository. When a developer notifies you that changes are ready to deploy you must first check them in. You will use the Information Server Source Code integration features to check in the changed assets. How will you identify the DataStage assets the developer modified in order to send them to the workspace?
- A. From Information Server Manager use Search with advanced options, specify a date modified and the developer's user name in the Modified by fields.
- B. From the Information Server Manager Select the project then right-click on Synchronize with source code control system.
- C. From the workspace perspective select the project Right-click then Refresh from repository, specify a modification date and the developer's username in the Modified by fields.
- D. Use Designer client Advanced Find, specify a modification date and the developer's username in the Modified by fields.
Answer: A
Question #3
DataStage offers database connectivity through connectors, native parallel and plug-in stage types. Which two statements are correct? (Choose two.)
- A. For maximum parallel performance, scalability, and features it is best to use the native parallel database stages.
- B. Next to the connector stage it is best to use the native parallel database stages.
- C. ODBC API is a plug-in stage.
- D. The connector stage offers better functionality and performance and is the best to use.
Answer: B,D
Question #4
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.
Answer: A
Question #5
What would help debug the run-time environment?
- A. Check the message filters for the job.
- B. View detailed runtime stats through Job monitor in Director Client.
- C. $OSH_PRINT_SCHEMAS
- D. $APT_VERBOSE
Answer: C
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