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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?
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Explain do we need an etl tool? When do we go for the tools in the market?
how do u estimate the depth of the session scheduling queue? Where do u set the number of maximum concurrent sessions that Informatica can run at a given time?
what happens if the info.server doesn't find the session parameter in the parameter file?
list the transformation used for the following:Heterogeneous sources,Homogeneous sources,Find the 5 highest paid employees with in a dept,create a summery table,generate surrogate keys
How to increase performance without changing anything in mapping.( In prod)
0 Answers IBM, Saama Tech, Wipro,
we hava more than 1000 records. i have to select first 5 record, last 5 record and 5 records from middle of the source. how can i do in oracle as well as in informetica??
What are your responsibilities as an etl tester?
Mention few test cases and explain them?
working of line item dimension......pls,tell overall flow
What is a lookup table in etl?
What are the differences between sql override and update override?
If you concatenate data from a normalizer transformation,the ports you concatenate cannot include OCCURS(T/F).
Teradata 
