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what are Lookup caches options? Including persistent caches.
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Answer / maruthi
static cache&dynamic cache
persistent cache&non-persistent cache
shared cache&unshared cache
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Compare ETL & Manual development?
how do u decide whether u need to do aggregations at database level or at Informatica level?
what is data modeling?
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?
what is meant by drill through?(Mascot)
What is cube grouping?
Assume u have a 24CPU machine with 24GB RAM, suggest how u would like to configure Informatica ,like number of concurrent sessions, RAM requirements etc,max partitions that u would permit per mapping.
what are the facilities provided by OLAP to analytical users?
What is partitioning? Explain different types of partitioning?
without using ETL tool can u prepare a Data warehousing and maintaining?
my name is amar i want display 1st line A 2nd line M 3rd line A 4th line R in database & informatica
Explain do we need an etl tool? When do we go for the tools in the market?
Teradata 
