ASP.NET Core Middleware & Request Pipeline 2

Question 1

What is the purpose of app.Run() in the middleware pipeline?

Accepted Answer

Adds a terminal middleware that never calls next()

Answer

Runs the application

Answer

Starts the web host

Answer

Registers background services

Question 2

Which middleware enables exception handling and custom error pages in production?

Accepted Answer

UseExceptionHandler

Answer

UseDeveloperExceptionPage

Answer

UseStatusCodePages

Answer

UseErrorBoundary

Question 3

What does app.Map() do in the middleware pipeline?

Accepted Answer

Branches the pipeline based on request path

Answer

Maps HTTP verbs to controller actions

Answer

Maps model properties

Answer

Creates route templates

Question 4

In which interface must a custom middleware class implement its logic?

Accepted Answer

IMiddleware with InvokeAsync method

Answer

IRequestHandler with Handle method

Answer

IPipeline with Process method

Answer

IHandler with Execute method

Question 5

What is the correct order for security middleware in ASP.NET Core?

Accepted Answer

CORS → Authentication → Authorization

Answer

Authorization → Authentication → CORS

Answer

Authentication → CORS → Authorization

Answer

CORS → Authorization → Authentication

Question 6

Which middleware is responsible for populating HttpContext.User from cookies or tokens?

Accepted Answer

UseAuthentication

Answer

UseAuthorization

Answer

UseSession

Answer

UseCookiePolicy