.NET Application Development Flashcards

Which .NET class is the base for all exceptions in the .NET Framework?

Answer: Exception

System.Exception is the root base class for all exceptions, both system-defined and user-defined.

What is the purpose of the web.config element in ASP.NET?

Answer: It configures user-friendly error pages shown when unhandled exceptions occur

The element lets you redirect users to friendly error pages instead of exposing raw exception details.

In C#, which access modifier makes a member accessible only within the same assembly?

Answer: internal

The internal modifier restricts access to code within the same compiled assembly (.dll or .exe).

What is the role of the DataAdapter in ADO.NET disconnected architecture?

Answer: It fills a DataSet from the database and reconciles changes back

DataAdapter bridges the database and a DataSet by using Fill() to load data and Update() to push changes back.

Which C# feature allows a method to yield values one at a time to the caller without loading all results into memory?

Answer: yield return

The yield return statement produces an iterator that returns values on demand, enabling lazy evaluation without building a full list.

In .NET, which garbage collection generation typically collects short-lived objects most frequently?

Answer: Generation 0

Generation 0 is collected most often because it targets newly allocated, short-lived objects like local variables.

Which ASP.NET feature allows you to map incoming URL patterns to specific handlers without file extensions?

Answer: URL Routing

URL Routing (System.Web.Routing) maps clean URL patterns to route handlers or controllers without requiring physical files.