bigData - 1

1. What is bigData ?
2. How is it bigData differnet from Data Warehouse ?
3. What kind of data sources categorize into bigData ?
4. Why is it required to have a different kind of software/hardware solutions to handle bigData ?
5. What kind of solutions are being developed to handle bigData ?
6. What is hadoop ? Is this same as bigData ? different ? how ?
7. What are the upcoming new technology suites for handling bigData ?

Data Modelling - 1

1. What are aggregates and why do you need them ?
2. What is the role of a logical data modeler and physical data modeler ?
3. How do you gather requirements for creating data model ?
4. What is the naming convention you follow ?
5. What are the different notations that can be used ?
6. What is cardinality ?
7. What are identifying and non identifying relationships ?
8. Why do you need reports from data model ?
9. What kind of Meta data do you capture in a data model ?
   
   
   Other useful links - helps in finding answers -
   * http://www.agiledata.org/essays/dataModeling101.html