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Where can i get informatica certification Exam dumps and
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Answer Posted / vasumathi
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explain the methodology of Data Warehousing?(Polaries)
where is the cache (lookup, index) created and how can you see it.
What is fact? What are the types of facts?
What are three tier systems in etl?
Difference between flat files and relational sources?
what are the data sources extracted from logistics cockpit in sap bw project and what is the requirement for it ?
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
Explain and compare etl & manual development?
what is the difference between cardinality and Nullability?
Explain the use lookup tables and Aggregate tables?
how do u extract data from different data sources explain with an example?
What are the different etl testing categories as per their function?
how do u handle performance issues in Informatica . where can u monitor the performance ?
Do we need an ETL tool? When do we go for the tools in the market?
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?
