# ASP.NET Core 기초 (.NET)

> Controllers, Actions, Routing, Middleware, Dependency Injection, Configuration

- 18 면접 질문
- Junior
- [면접 질문: .NET](https://sharpskill.dev/ko/technologies/dotnet/interview-questions.md)

## 1. ASP.NET Core에서 Controller란 무엇입니까?

**답변**

Controller는 들어오는 HTTP 요청을 처리하고 응답을 반환하는 클래스입니다. 특정 요청을 처리하고 콘텐츠(HTML, JSON 등)를 생성하는 액션 메서드(Actions)를 포함합니다. Controller는 API의 경우 ControllerBase를, 뷰가 있는 MVC 애플리케이션의 경우 Controller를 상속합니다.

## 2. ASP.NET Core Controller에서 Action은 무엇을 나타냅니까?

**답변**

Action은 특정 HTTP 요청을 처리하는 Controller 내의 public 메서드입니다. 다양한 유형의 결과(IActionResult, ActionResult<T>, 타입이 지정된 객체)를 반환할 수 있습니다. Action은 기존 라우팅 또는 라우트 속성을 통해 라우트에 매핑됩니다.

## 3. ASP.NET Core에서 ControllerBase와 Controller의 차이점은 무엇입니까?

**답변**

ControllerBase는 필수 기능(ModelState, Request, Response)을 제공하는 Web API용 최소 기본 클래스입니다. Controller는 ControllerBase를 상속하고 뷰 관련 기능(ViewBag, ViewData, View())을 추가합니다. API에 ControllerBase를 사용하면 뷰 관련 불필요한 코드를 피하여 성능이 향상됩니다.

## 15개 추가 질문 이용 가능

- ASP.NET Core에서 attribute routing으로 라우트를 정의하려면 어떻게 합니까?
- 라우트 패턴 "{controller=Home}/{action=Index}/{id?}"는 무엇을 합니까?

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## 기타 .NET 면접 주제

- [C# 기초](https://sharpskill.dev/ko/technologies/dotnet/interview-questions/csharp-basics.md): 25개 질문, Junior
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- [Configuration & Settings](https://sharpskill.dev/ko/technologies/dotnet/interview-questions/configuration-settings.md): 20개 질문, Junior
- [애플리케이션 라이프사이클](https://sharpskill.dev/ko/technologies/dotnet/interview-questions/application-lifecycle.md): 20개 질문, Junior
- [Dependency Injection](https://sharpskill.dev/ko/technologies/dotnet/interview-questions/dependency-injection.md): 24개 질문, Mid-Level
- [Entity Framework Core](https://sharpskill.dev/ko/technologies/dotnet/interview-questions/entity-framework-core.md): 25개 질문, Mid-Level
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- [Web API 개발](https://sharpskill.dev/ko/technologies/dotnet/interview-questions/web-api-development.md): 22개 질문, Mid-Level
- [ASP.NET Core의 Async](https://sharpskill.dev/ko/technologies/dotnet/interview-questions/async-aspnet-core.md): 20개 질문, Mid-Level
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- [JSON 직렬화](https://sharpskill.dev/ko/technologies/dotnet/interview-questions/json-serialization.md): 20개 질문, Mid-Level
- [Entity Framework Core 고급](https://sharpskill.dev/ko/technologies/dotnet/interview-questions/ef-core-advanced.md): 25개 질문, Mid-Level
- [C# 고급 기능](https://sharpskill.dev/ko/technologies/dotnet/interview-questions/csharp-advanced-features.md): 20개 질문, Mid-Level
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- [단위 테스트와 xUnit](https://sharpskill.dev/ko/technologies/dotnet/interview-questions/unit-testing-xunit.md): 20개 질문, Mid-Level
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- [NuGet 패키지 관리](https://sharpskill.dev/ko/technologies/dotnet/interview-questions/nuget-package-management.md): 16개 질문, Mid-Level
- [Memory Management & GC](https://sharpskill.dev/ko/technologies/dotnet/interview-questions/memory-management-gc.md): 22개 질문, Senior
- [리액티브 프로그래밍](https://sharpskill.dev/ko/technologies/dotnet/interview-questions/reactive-programming.md): 24개 질문, Senior
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