Dataset.Clone() will copy just the dataset structure including all the datatables, schemas, relations and constraints; it will not copy the data. Dataset.Copy() will copy both dataset structure and data.

The asp .net client side code is usually call inline code. From most browsers it can be view by choosing 'View source' from the page menu.

The Server side code is usually called Code-behind as reference to the fact that in a web application it is actually the part of the code handling the large part of the execution.

Static class is implemented with the Keyword Static in the class definition. It must contain only static members and methods. Public members of static class can be accessed without the class instantiation. Static class are sealed by default therefore can not be inherited. Static class cannot be instantiated.

A struct is a value type while a class is a reference type. There's no inheritance with struct.

Yes it is.