Schneider Electric interview questions

Introduction. Tell me the instances where you will go for MethodOverloading and MethodOverriding? Write simple SQL query to fetch data from employee table where date of birth is today? I changed the table column length in database. Do I need to update my EntityFramework? I have already deployed first version of product having dll version 1. Now I am deploying second version of it having dll version 2. Is it possible to configure V1 to previous product and V2 to new product? Is it possible to use joins in LINQ? Got a request for second round: I don't know what happened to me I became dumb once interview starts!!! I couldn't answer even a single question. But got good experience, good motivation by interviewer to pick up. For each question he keeps on mentioning "I will see an approach not a concrete answer!!". Anyway here questions start--> How do you identify the given date is end of the month(first solving approach, next in SQL, next in .Net)? Where will the ViewState be stored? Can you store anything in ViewState? I have a calendar control and two text boxes. When I select the date, beginning of that month to be filled in first text box and ending of that month to be filled in second text box(first solving approach, next in Javascript) What kind of controls are used in current project, why for each one?