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IBM A2090-421 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Performance & Troubleshooting | 15% | - Handle errors and rejects - Partitioning and sorting optimization - Monitor and log execution |
| Configuration | 6% | - Create and configure projects - Install and configure InfoSphere DataStage v8.5 - Understand architecture and components |
| Advanced Techniques | 10% | - Environment variables and parameter sets - Job deployment and packaging - Complex Flat File (CFF) stage |
| Job Design & Development | 25% | - Lookup, Join, Merge, and Funnel stages - Slowly Changing Dimensions (SCD) - Job sequences and parameterization - Transformer and derivation logic |
| Metadata Management | 6% | - Runtime Column Propagation (RCP) - Schema orchestration - Import and share metadata |
| Parallel Architecture | 9% | - Node pools and parallel processing - Parallel execution and configuration files - Data partitioning and collecting |
| Persistent Storage | 10% | - Data sets and file structures - Restructure and format stages - Sequential files and file sets |
| Database Connectivity | 9% | - ODBC, DB2, Oracle integration - Database stage selection - Source and target database properties |
IBM Assessment: InfoSphere DataStage v8.5 Sample Questions:
You have finished changes to many Jobs and Shared containers. You must export all of your changes and integrate them into a test project with other objects. What are two ways to select the objects you changed for the export? (Select two)
- A. Sort the jobs by timestamp.
- B. Using the advanced find dialog, specify in the last modified panel. the date range of the jobs and appropriate user name.
- C. Select a folder in your repository tree, right click and choose "Objects that I last modified".
- D. Use Multiple Job Compile to locate objects that need to be compiled.
Correct Answer: B,C 🗳️
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. Using the DB2 Enterprise stage, select all rows. Perform a unique Sort using customer number and order date sort keys in ascending order.
- B. Using the Dynamic Relational stage, use custom SQL to select all DISTINCT customer numbers from the order history table.
- C. 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.
- D. Select all rows using the ODBC Connector stage, use a Sort Aggregator on customer number key to select the maximum order date.
Correct Answer: C 🗳️
Click on the Exhibit button.
Which environment variable would provide this information?
- A. APT_PM_PLAYER_TIMING
- B. APT_STATUS
- C. APT_SHOW_COMPONENT_CALLS
- D. APT_DEBUG_PARTITION
Correct Answer: A 🗳️
You would like to run a particular processing job within a job sequence for each weekday of the week. How could you do this? (Select two)
- A. Have a parameter set that contains the days of the week you would like to process and routine to parse the days of the week contained in the "day" parameter.
- B. Call a routine in the job sequencer that starts the processing job for each day you would like to process.
- C. Start Loop and End Loop activity stages on the job sequencer canvas where you loop through the days and pass a value for each day into the job via parameter.
- D. Set the frequency property in the job scheduler to weekdays only.
Correct Answer: C,D 🗳️
Which two statements are true about the usage of scratch disk? (Choose two.)
- A. You can define multiple scratch disk spaces to distribute disk I/O.
- B. The Sort stage always uses the scratch disk.
- C. If "buffer" scratch disk pool is defined, the framework uses this disk pool and the default disk pool.
- D. The parallel framework uses the disk space specified in the scratch disk setting to buffer virtual data set records.
Correct Answer: A,D 🗳️
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