Faq's in Datastage

1. Data Warehousing Architecture.
2. What is Star Schema and Snow Flake Schema and their differences.
3. What is Dimension Table and types of Dimension Tables.
4. Give the example for the fallowing Dimensions:                                                               1)Conformed                    2)Degenerate                   3)Junk                   4)SCD
5. What is Fact Table and its types.
6. What is Fact less Fact Table and give one example.
7. What is ODS and its benefits.
8. What is Data Mart.
9. What are the approaches of Data Warehouse.