C# javascript

1.  server based connection - what is the page that goes with every request

2. HTML difference between div and span

3. DOM - what is the tree like and what are its node?

4. .NET feature C# latest

5. 2 reference type

6. var obj

7. Delete truncate

8. clustered non clustered

9. inner join outer join

10. datatypes in javascript

11. Ienumerable List

12. factory pattern

13. DI