ASP.NET Core Web API Interview Preparation

ASP.NET Core Web API Interview Questions & Answers

200 ASP.NET Core Web API interview questions and answers from REST fundamentals to senior production scenarios.

8 Topics Beginner to Senior

Study by topic

Choose a focused area and work through the questions in sequence.

Topic 1

Web API & REST Fundamentals, Controllers, HTTP Methods & Status Codes

ASP.NET Core Web API interview questions covering REST fundamentals, controllers, HTTP methods and status codes.

Topic 2

DTOs, Model Binding, Validation & API Responses

ASP.NET Core Web API interview questions covering DTOs, model binding, validation and API response design.

Topic 3

Authentication, Authorization, JWT & API Security

ASP.NET Core Web API interview questions covering authentication, authorization, JWT bearer tokens and API security.

Topic 4

Routing, Versioning, OpenAPI/Swagger & API Documentation

ASP.NET Core Web API interview questions covering routing, API versioning, OpenAPI, Swagger and API documentation.

Topic 5

Dependency Injection, Services, EF Core, Async & Data Access

ASP.NET Core Web API interview questions covering dependency injection, services, EF Core, asynchronous programming and data access.

Topic 6

Error Handling, Logging, Caching, Rate Limiting, CORS & Reliability

ASP.NET Core Web API interview questions covering error handling, logging, caching, rate limiting, CORS and reliability.

Topic 7

Testing, HttpClient, Integration Testing, Background Services & Deployment

ASP.NET Core Web API interview questions covering testing, HttpClient, integration testing, background services and deployment.

Topic 8

Senior API Design, Architecture, Scalability & Production Scenarios

Senior ASP.NET Core Web API interview questions covering API design, architecture, scalability, distributed systems and production scenarios.