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IBM A2090-421 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Data Integration and Connectivity | 15% | - File handling and formats - Database connectivity and stages - Specialized stages and connectors |
| Topic 2: Job Design and Development | 30% | - Transformer and derivation logic - Stage configuration and properties - Partitioning and collecting methods - Parallel job design principles |
| Topic 3: Performance and Tuning | 20% | - Resource management - Job optimization and scaling - Buffer and sort tuning |
| Topic 4: Administration and Deployment | 10% | - Monitoring and logging - Version control and migration - Job packaging and deployment |
| Topic 5: Environment and Configuration | 25% | - Distributed and asymmetric environments - Project setup and administration - Configuration files and environment variables |
IBM Assessment: InfoSphere DataStage v8.5 Sample Questions:
You are asked by your customer to collect partition level runtime meta-data for DataStage Parallel jobs. You must collect this data after each job completes. What two options allow you to automatically save row counts and CPU time for each instance of an operator? (Select two)
- A. $APT_PERFORMANCE_DATA
- B. $APT_PM_PLAYER_TIMINGS
- C. Enable the job property "Record job performance data".
- D. Enable the job property "Log report messages after each job run".
Correct Answer: B,D 🗳️
In which two situations is it appropriate to use a Sparse Lookup? (Choose two.)
- A. When the output of the Lookup stage needs to be hashed partitioned.
- B. When invoking a stored procedure within a database per row in the streaming link.
- C. When reference data is significantly larger than the streaming data (100:1).
- D. When accessing DB2 data using the DB2 API stage.
Correct Answer: B,C 🗳️
Your job design calls for using a target ODBC Connector stage. The target database is found on a remote server. The target table you are writing into contains a single column primary key. What are the three "Write mode" properties that allow the possibility of multiple SQL actions? (Choose three.)
- A. Join then update
- B. Insert then update
- C. Delete then insert
- D. Truncate then add
- E. Update then insert
Correct Answer: B,C,E 🗳️
A customer must compare a date column with a job parameter date to determine which output links the row belongs on. What stage should be used for this requirement?
- A. Switch stage
- B. Transformer stage
- C. Compare stage
- D. Filter stage
Correct Answer: B 🗳️
What two data sources support direct lookups? (Select two)
- A. DB2
- B. Oracle
- C. Teradata
- D. ODBC
- E. SqIServer
Correct Answer: A,B 🗳️
