.NET and Java Web Development

DBMS provides multiple benefits: non-redundancy eliminates duplicate data storage, data independence separates data from applications, and increased security provides controlled access. Since all these are core DBMS characteristics, 'All of the above' is correct. Individual options A, B, and C each represent valid but partial benefits.

In PL/SQL or embedded SQL, a SELECT INTO statement must return exactly one row. Returning zero rows raises a NO_DATA_FOUND exception, and returning more than one row raises a TOO_MANY_ROWS exception.

WF (Windows Workflow Foundation) is the .NET 3.0 technology for building workflow-enabled applications. WCF is for communication, WPF for presentation, and WWF (World Wildlife Fund) is not a Microsoft technology. WF provides the programming model, runtime, and tools for workflow-based applications.

Historically, functions must return a value, while procedures do not. Note that procedures can return values via OUT parameters in many databases, but standard definition-level differentiation is that procedures do not return values directly via a RETURN statement.

DataView provides a customizable, filtered view of a DataTable's contents. It allows sorting, filtering, and searching without modifying the underlying data. DataRow represents a single row, DataColumn represents a single column, and DataSet is a collection of tables. DataView is specifically designed for working with data subsets.

Boxing converts a value type to a reference type by storing it on the heap and creating a reference to it. Unboxing reverses this by extracting the value type from the reference. The other terms like packing/uncasting are not standard terminology in .NET or Java.

WinFx was the code name for .NET Framework 3.0, which introduced WPF (Windows Presentation Foundation), WCF (Windows Communication Foundation), and Workflow Foundation. It was not associated with version 2.0, 3.5, or 4.0.

Microsoft's AJAX implementation for ASP.NET was code-named ATLAS, which later became ASP.NET AJAX. WPF was the presentation framework, WinFx was the .NET 3.0 code name, and Avalon was the code name for WPF specifically.

The RequestDispatcher object is obtained using the getRequestDispatcher() method of the ServletContext interface, not the RequestDispatcher interface itself. This is because ServletContext provides the context for resource dispatching within the web application.

URL rewriting, hidden form fields, and the HttpSession interface are standard mechanisms for maintaining state across HTTP requests in servlets. HTTP Redirect is a navigation response mechanism rather than a direct state management technique.