Where can i get informatica certification Exam dumps and
details? please forward it to emailid: krisboppana@yahoo.com
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Answer Posted / jaya sreenivas
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Identifying the bottlenecks in various components of Informatica and resolving them.
What is fact? What are the types of facts?
How to fine tune mappings?
how can i text accracy of ETL migration? i am very new to data warehousing. we are writing ETL scripts using SCRIPELLA tool. how can i test the correctness of data. and we are generating reports using pentaho . is there any easy way to test the pentaho. how can test these ETL scripts written in scriptella? thanks in advance
5. How many repositories can we create in Informatica? 6. What is surrogate key? 7. What is difference between Mapplet and reusable transformation? 8. What is aggregate awareness? 9. Explain reference cursor? 10. What are parallel querys and query hints? 11. DWH architecture? 12. What are cursors? 13. Advantages of de normalized data? 14. What is operational data source (ODS)? 15. What is meta data and system catalog? 16. What is factless fact schema? 17. What is confirmed dimension? 18. What is the capacity of power cube? 19. Difference between PowerPlay transformer and power play reports? 20. What is IQD file? 21. What is Cognos script editor? 22. What is difference macros and prompts? 23. What is power play plug in? 24. Which kind of index is preferred in DWH? 25. What is hash partition? 26. What is DTM session? 27. How can you define a transformation? What are different types of transformations in Informatica? 28. What is mapplet? 29. What is query panel? 30. What is a look up function? What is default transformation for the look up function? 31. What is difference between a connected look up and unconnected look up? 32. What is staging area? 33. What is data merging, data cleansing and sampling? 34. What is up date strategy and what are th options for update strategy? 35. OLAP architecture? 36. What is subject area? 37. Why do we use DSS database for OLAP tools?
Explain the use lookup tables and Aggregate tables?
What is full load & incremental or refresh load?
what is Forward,Reverse and Re_engineering?
what are the data sources extracted from logistics cockpit in sap bw project and what is the requirement for it ?
where are the log files generally stored.Can you change the path of the file.what can the path be?
Explain do we need an etl tool? When do we go for the tools in the market?
what is pmrep command?
How many types of transformations supported by sorted input?
how do u really know that paging to disk is happening while u are using a lookup transform?
explain the methodology of Data Warehousing?(Polaries)
