Assessment: InfoSphere DataStage v8.5: A2090-421 Exam
"Assessment: InfoSphere DataStage v8.5", also known as A2090-421 exam, is a IBM Certification. With the complete collection of questions and answers, ExamcollectionPass has assembled to take you through 194 Q&As to your A2090-421 Exam preparation. In the A2090-421 exam resources, you will cover every field and category in IBM Specialist Certification helping to ready you for your successful IBM Certification.
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- Exam Code: A2090-421
- Exam Name: Assessment: InfoSphere DataStage v8.5
- Certification Provider: IBM
- Corresponding Certification: IBM Specialist
- Updated: Sep 29, 2026
- No. of Questions: 194 Questions & Answers with Testing Engine
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IBM A2090-421 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Data Integration | - Connectivity to data sources and targets - Data transformation techniques |
| Job Development | - Parallel job design principles - Stages and transformers usage - Job sequences and control logic |
| Performance Optimization | - Job tuning and bottleneck analysis - Parallel processing optimization |
| InfoSphere DataStage Architecture | - Components (Designer, Director, Administrator) - Server and Parallel Job Architecture |
| Administration and Troubleshooting | - Error handling and recovery - Job monitoring and logging |
IBM Assessment: InfoSphere DataStage v8.5 Sample Questions:
Click on the Exhibit button.
Using this report, how many processes and on how many nodes does this score depict?
- A. 3 processes on 3 nodes
- B. 2 processes on 3 nodes
- C. 3 processes on 2 nodes
- D. 2 processes on 2 nodes
Correct Answer: C 🗳️
What are two ways to specify a stylesheet in an XML input stage? (Choose two.)
- A. On the output link advanced properties tab, load the content or path of a stylesheet that is stored on the engine tier host.
- B. On the output link columns properties tab, identify an input column that contains the stylesheet URL.
- C. On the output link columns properties tab, type the stylesheet in the XLST box.
- D. On the output link advanced properties tab, type the stylesheet in the Stylesheet box.
Correct Answer: A,D 🗳️
A star schema data warehouse consists of four dimension tables and one fact table. How many Slowly Changing Dimensions (SCD) stages will you need in your jobs to update the star schema tables?
- A. two
- B. five
- C. three
- D. four
Correct Answer: D 🗳️
Which two tasks can the Slowly Changing Dimensions (SCD) stage perform? (Choose two.)
- A. Look up whether a record with a matching business key value exists in a dimension table. If it does, add new values for selected fields to values lists for those fields.
- B. Look up whether a record with a matching business key value exists in a dimension table. If it does, mark the record as not-current, and generate a new record with new values for selected fields.
- C. Look up whether a record with a matching business key value exists in a dimension table. If it does not, retrieve a new surrogate key value and insert a new row into the dimension table.
- D. Look up whether a record with a matching business key value exists in a fact table. If it does not, retrieve a new surrogate key value and insert a new row into the fact table.
Correct Answer: B,C 🗳️
In a Transformer, which two of the following mappings can be handled by default type conversions. (Select two)
- A. Integer input column mapped to raw output column.
- B. String input column mapped to integer output column.
- C. Integer input column mapped to string output column.
- D. Date input column mapped to a string output column.
- E. String input column mapped to a data output column.
Correct Answer: C,E 🗳️
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