interview questions ? share ur ideas .

Question

Hi

1) I have page_load under page and other page_load  in .cs file .. when i execute webform which will get executed first ?

2) How to create a xml doc from scratch ? just syntax is enough

3) view state can store what type of data ?
    a) serializable data
     b)only string
     c) everything 
      d) none ...................justify 

4)what is the pre-defined tracelistener class in asp.net

5)If a class using interface means
   a) inherit all prop's
   b)contains same methods as interface
   c)create a interface object
   d) All the above

6) Well when we use ajax controls on webpage after placing scriptmanagercontrol do we need to do any settings sort of things ....

7)What are user-defined functions in sqlserver ... I still doubt people who are working as dotnet developers over the years can they answer if they ask what is userdefined function like that .. i mean i guess mostly we dont use these things right ? max we use joins , SP's , triggers , some buitin functions .. This terminology stuff haunting me .. 

Cheers ty