Question

(a) What do we signifies by saying that HTTP is a stateless protocol?

(b) Explain three ways of working around that statelessness issue

(c) Explain with the help of a diagram, how ASP.NET applications execute

(d) Write an ASP.NET program with the specifications given below

1. Create a DropDownList control declaratively with three items: Select Colour, Red and Blue
2. A user should not be able to submit the form if he chooses the Select Colour item
3. The form is merely submitted if a user selects either Red or Blue
4. Detect the chosen colouras well prints a message as follows: "Red colour chosen" or "Blue colour chosen"