IBM C2090-418 : IBM Websphere Datastage V.8.0
- Exam Code: C2090-418
- Exam Name: IBM Websphere Datastage V.8.0
- Updated: Oct 18, 2026
- Q & A: 132 Questions and Answers
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IBM C2090-418 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Job Design and Development | 35% | - Data types and metadata handling - Lookups, references and constraints - Stage usage: sources, transformations, targets - Parallel and Server job design - Partitioning, collecting and sorting |
| Architecture and Environment | 20% | - Project setup and management - Environment variables and configuration files - Installation and configuration - DataStage/Information Server architecture |
| Job Execution and Monitoring | 20% | - Running and scheduling jobs - Performance monitoring and tuning - Director client and job logs - Resource management and parallelism |
| Troubleshooting and Best Practices | 10% | - Job optimization and standards - Migration and maintenance - Error handling and debugging |
| Administration and Security | 15% | - User roles and security configuration - Repository management - Backup and recovery procedures |
IBM Websphere Datastage V.8.0 Sample Questions:
You have a parallel job that does not scale beyond two nodes. After investigation you find that the data has been partitioned on a DoNotCall flag, which has only "Y" or "N" values, and you have an Aggregator stage that is accumulating totals based on this flag using a sort method. Which two techniques could you use to allow the job to scale? (Choose two.)
- A. Add an additional column for partitioning to result in additional data partitions.
- B. Change the partitioning method to Round Robin; add a second Aggregator stage, running sequentially, that re-aggregates based on the DoNotCall flag.
- C. Change the aggregation method to hash to eliminate the blocking sort operation.
- D. Change the preserve partitioning option on the stage ahead of the aggregator to clear partitioning.
Correct Answer: B,C 🗳️
What are three valid data types for "Calculation" Aggregation type in the Aggregator stage? (Choose three.)
- A. Integer
- B. Varchar
- C. Char
- D. Date
- E. Decimal
Correct Answer: A,D,E 🗳️
When defining a message handler, which three actions can be specified for a message?
(Choose three.)
- A. Promote to "Warning".
- B. Suppress from log.
- C. Promote to "Fatal".
- D. Demote to "Informational".
- E. Demote to "Warning".
Correct Answer: A,B,D 🗳️
Your job reads from a file using a Sequential File stage running sequentially. You are using a Transformer stage following the Sequential File stage to format the data in some of the columns. What is the default (Auto) partitioning method?
- A. Random
- B. Hash
- C. Same
- D. Round Robin
Correct Answer: D 🗳️
In a job using Sequential File stage to write a sequential file, the ContactName column is nullable, but the "Null field value" property is left unspecified. The ContactName column has a Char(50) data type. What will happen if NULL is written to the ContactName column?
- A. The column will be padded with the character specified by the $APT_STRING_PADCHAR character.
- B. The job will abort.
- C. The row containing the NULL will be rejected.
- D. The empty string ("") will be written to the ContactName column.
Correct Answer: C 🗳️
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