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IBM C2090-421 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Parallel Architecture | 9% | - Node pools and parallel processing - Data partitioning and collecting - Parallel execution and configuration files |
| Metadata Management | 6% | - Import and share metadata - Runtime Column Propagation (RCP) - Schema orchestration |
| Persistent Storage | 10% | - Data sets and file structures - Sequential files and file sets - Restructure and format stages |
| Job Design & Development | 25% | - Slowly Changing Dimensions (SCD) - Transformer and derivation logic - Lookup, Join, Merge, and Funnel stages - Job sequences and parameterization |
| Configuration | 6% | - Understand architecture and components - Create and configure projects - Install and configure InfoSphere DataStage v8.5 |
| Performance & Troubleshooting | 15% | - Handle errors and rejects - Monitor and log execution - Partitioning and sorting optimization |
| Database Connectivity | 9% | - ODBC, DB2, Oracle integration - Source and target database properties - Database stage selection |
| Advanced Techniques | 10% | - Job deployment and packaging - Environment variables and parameter sets - Complex Flat File (CFF) stage |
IBM InfoSphere DataStage v8.5 Sample Questions:
What role must a user have to delete shared metadata assets from the repository?
- A. Common Metadata User
- B. Information Analyzer User
- C. Business Glossary Administrator
- D. DataStage Administrator
- E. Common Metadata Administrator
Correct Answer: E 🗳️
Which two features of Data Sets make them suitable for job restart points? (Choose two.)
- A. They are compressed to minimize storage space.
- B. They use the same data types as the parallel framework.
- C. They are indexed to improve access.
- D. They are persistent.
Correct Answer: B,D 🗳️
Which requirement must be met to read from a database in parallel using the ODBC connector?
- A. Configure environment variable $APT_MAX_TRANSPORT_BLOCK_SIZE.
- B. ODBC connector always reads in parallel.
- C. Configure environment variable $APT_PARTITION_COUNT.
- D. Set the Enable partitioning property to Yes.
Correct Answer: D 🗳️
Which three source stages require a schema file when using RCP? (Choose three.)
- A. Column Export Stage
- B. Data Set Stage
- C. Complex Flat File Stage
- D. External Target Stage
- E. File Set Stage
Correct Answer: A,D,E 🗳️
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. Select all rows using the ODBC Connector stage, use a Sort Aggregator on customer number key to select the maximum order date.
- B. Using the Dynamic Relational stage, use custom SQL to select all DISTINCT customer numbers from the order history table.
- C. Using the DB2 Enterprise stage, select all rows. Perform a unique Sort using customer number and order date sort keys in ascending order.
- D. 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.
Correct Answer: D 🗳️
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