Exam Name: InfoSphere DataStage v8.5
Certification Provider: IBM
Corresponding Certification: IBM Specialist
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IBM C2090-421 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Performance and Tuning | 20% | - Buffer and sort tuning - Resource management - Job optimization and scaling |
| Topic 2: Administration and Deployment | 10% | - Job packaging and deployment - Version control and migration - Monitoring and logging |
| Topic 3: Job Design and Development | 30% | - Stage configuration and properties - Parallel job design principles - Partitioning and collecting methods - Transformer and derivation logic |
| Topic 4: Environment and Configuration | 25% | - Distributed and asymmetric environments - Configuration files and environment variables - Project setup and administration |
| Topic 5: Data Integration and Connectivity | 15% | - File handling and formats - Database connectivity and stages - Specialized stages and connectors |
IBM InfoSphere DataStage v8.5 Sample Questions:
Input rows to a Transformer contain a product name field and a field with a list of colors the product can be ordered with. The colors are separated by the pipe character (|). Here is an example of an input row: "Shirt"| ....| "Red, Blue, Black"|... For each input row, you want to output multiple output rows, one for each color in the list. For the above example input row, three rows are to be output, one per color: "Shirt" ... "Red", "Shirt" ... "Blue", "Shirt" ... "Black".
Which three operations will you need to accomplish this? (Choose three.)
- A. Use the LastRowInGroup() function to determine when the last color in the color list has been processed.
- B. Specify the following loop condition: @ITERATION <= n, where n is a stage variable initialized with number of loop iterations.
- C. Use the Count() function over the ColorList field to determine the number of loop iterations.
- D. Use the SaveInputRecord() to save the input row for processing in the loop. Use the GetInputRecord() to extract the row for each iteration of the loop.
- E. Use the @ITERATION variable to determine which color in the ColorList field to extract using the Field function.
Correct Answer: B,C,E 🗳️
Which two steps are required to change from a normal lookup to a sparse lookup in an ODBC Enterprise stage? (Choose two.)
- A. Establish a relationship between the key field column in the source stage with the database table field.
- B. Change the lookup option in the stage properties to "Sparse".
- C. Replace columns at the beginning of a SELECT statement with a wildcard asterisk (*).
- D. Sort the data on the reference link.
Correct Answer: A,B 🗳️
How are Host Systems added to the Shared Metadata repository? (Select two)
- A. Use the Import/Export Manager when importing shared metadata.
- B. Use the shared table creation wizard from the DataStage client to add a new Host System.
- C. Select Repository > Metadata Sharing > Management from the main menu to open the Shared Metadata Management tool
- D. Use the DataStage Administrator application to import new Host Systems.
Correct Answer: C 🗳️
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Which two partitioning methods require keys? (Choose two.)
- A. Entire
- B. Hash
- C. Round Robin
- D. Modulus
Correct Answer: B,D 🗳️
Which two property areas must be configured when using the ODBC connector stage as a target in your job design? (Choose two.)
- A. Specify properties for the input link.
- B. Define the connection properties to an ODBC data source.
- C. Define columns for the output link.
- D. Specify the remote server property.
Correct Answer: A,B 🗳️
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