InfoSphere DataStage v8.5: C2090-421 Exam
"InfoSphere DataStage v8.5", also known as C2090-421 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 C2090-421 Exam preparation. In the C2090-421 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: C2090-421
- Exam Name: InfoSphere DataStage v8.5
- Certification Provider: IBM
- Corresponding Certification: IBM Specialist
- Updated: Sep 30, 2026
- No. of Questions: 194 Questions & Answers with Testing Engine
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IBM C2090-421 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Environment and Configuration | 25% | - Project setup and administration - Distributed and asymmetric environments - Configuration files and environment variables |
| Topic 2: Job Design and Development | 30% | - Stage configuration and properties - Parallel job design principles - Transformer and derivation logic - Partitioning and collecting methods |
| Topic 3: Data Integration and Connectivity | 15% | - File handling and formats - Database connectivity and stages - Specialized stages and connectors |
| Topic 4: Administration and Deployment | 10% | - Job packaging and deployment - Monitoring and logging - Version control and migration |
| Topic 5: Performance and Tuning | 20% | - Job optimization and scaling - Buffer and sort tuning - Resource management |
IBM InfoSphere DataStage v8.5 Sample Questions:
You are about to begin major changes to jobs in a project. You want to conveniently identify job changes on an ad hoc basis. What two tasks will allow you to identify changes to your jobs? (Choose two.)
- A. Import the original job from a .dsx export.
- B. Before making a change to a job make a copy of the job in a different category folder.
- C. Select the job, then right click Compare within.
- D. Select the job, then right click Cross Project Compare.
Correct Answer: B,C 🗳️
The DB2 and Oracle Enterprise stages support logged and non-logged DBMS table operations. What is the non-logged operation that is supported by the DB2 and Oracle Enterprise stages?
- A. Delete
- B. Update
- C. Insert
- D. Load
Correct Answer: D 🗳️
Which three of the following actions are available when editing a message handler? (Select three)
- A. Promote to warning
- B. Demote to warning
- C. Abort Job
- D. Demote to informational
- E. Suppress from job log
Correct Answer: A,D,E 🗳️
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Which two of the following derivations for an output column named OutCol can be used to generate a unique sequence of integers across multiple partitions?
- A. NextSurrogateKey()
- B. 1 + @NUMPARTITIONS * @INROWNUM
- C. @PARTITIONNUM + @NUMPARTITIONS
- D. @INROWNUM
Correct Answer: C 🗳️
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Click the Exhibit button.
These three Sequential Files shown in the exhibit need to be joined. Join_1 is on Columns CustID and OrderID. Join_2 is on CustID and LocationID. What is the most efficient hash partitioning strategy for each link?
- A. For LinkA Hash Partition on CustID, OrderID and LocationID; For LinkB Hash Partition on CustID, OrderID and LocationID; For LinkC Hash Partition on CustID, OrderID and LocationID; For LinkD Hash Partition on CustID, OrderID and LocationI
- B. For LinkA Hash Partition on CustID and OrderID; For LinkB Hash Partition on CustID and OrderID; For LinkC Hash Partition on CustID and LocationID; For LinkD Hash Partition on CustID and LocationID.
- C. For LinkA Hash Partition on CustID;
For LinkB Hash Partition on CustID;
For LinkC Same Partition;
For LinkD Hash Partition on CustID. - D. For LinkA Hash Partition on OrderID and CustID; For LinkB Hash Partition on OrderID and CustID; For LinkC Hash Partition on LocationID and CustID; For LinkD Hash Partition on LocationID and CustID.
Correct Answer: C 🗳️
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