Exam Name: Assessment: InfoSphere DataStage v8.5
Certification Provider: IBM
Corresponding Certification: IBM Specialist
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IBM : A2090-421 Exam Premium Dumps
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IBM A2090-421 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Administration and Deployment | 10% | - Monitoring and logging - Version control and migration - Job packaging and deployment |
| Topic 2: Data Integration and Connectivity | 15% | - Database connectivity and stages - Specialized stages and connectors - File handling and formats |
| Topic 3: Job Design and Development | 30% | - Transformer and derivation logic - Parallel job design principles - Partitioning and collecting methods - Stage configuration and properties |
| Topic 4: Environment and Configuration | 25% | - Distributed and asymmetric environments - Configuration files and environment variables - Project setup and administration |
| Topic 5: Performance and Tuning | 20% | - Buffer and sort tuning - Job optimization and scaling - Resource management |
IBM Assessment: InfoSphere DataStage v8.5 Sample Questions:
You are setting up the parallel engine configuration file. Which two statements are true about file system efficiency? (Select two)
- A. In a clustered environment where NAS is used for a common storage, specify the internal disk for scratch disk.
- B. Specify a directory for the resource disk in the partition where the engine is installed.
- C. Creating scratch disk space on an internal disk improves sort performance than NFS drive.
- D. Using multiple scratch spaces in a logical node improves performance.
Correct Answer: A,B 🗳️
The DB2 and Oracle Enterprise stages support logged and non-logged DBMS table operations. What is the non-logged operation that is supported by the DB2 and Oracle Enterprise stages?
- A. Update
- B. Delete
- C. Insert
- D. Load
Correct Answer: D 🗳️
A script invokes an update job called "UpdateKeys" via a command line invocation of the dsjob command. The service is to wait for the completion and status of this job before continuing with the rest its tasks. Which three commands would invoke the "UpdateKeys" job in the MigrationProject and wait for its completion status? (Select three)
- A. dsjob-run-wait MigrationProject UpdateKeys
- B. dsjob-run-userstatus MigrationProject UpdateKeys
- C. dsjob -run -log dsjob -run -userstatus MigrationProject UpdateKeys
- D. dsjob -run -jobstatus MigrationProject UpdateKeys
- E. dsjob -run MigrationProject UpdateKeys
Correct Answer: A,B,C 🗳️
A job design consists of an input sequential file, a Modify stage, followed by a Filter stage and an output SequentialFile stage. The job is run on an SMP machine with a configuration file defined with three nodes. No environment variables were set for the job. How many osh processes will this job create?
- A. 8
- B. 9
- C. 11
- D. 16
Correct Answer: B 🗳️
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_PM_PLAYER_TIMINGS
- B. Enable the job property "Record job performance data".
- C. Enable the job property "Log report messages after each job run".
- D. $APT_PERFORMANCE_DATA
Correct Answer: A,C 🗳️
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