# .NET & C# Developer Mock Technical Interview 2026: ASP.NET Core, EF Core

> Canonical URL: https://ratemyinterview.online/practice/dotnet-csharp-mock-interview
> Target Role: .NET & C# Software Engineer
> Key Skills Evaluated: C# 12, .NET 8/9, ASP.NET Core Web API, Entity Framework Core, LINQ, Dependency Injection, Microservices, Async/Await
> Interview Format: Real-Time Voice AI Dialogue with Sophia AI (~900ms Audio Latency)
> Session Duration: 45 Minutes Structured Simulation (5–8 Probing Technical Questions)
> Evaluation Rubrics: 3 Objective Dimensions (Technical Depth, System Architecture, Communication Clarity)
> Free Starter Access: 2 Full Comprehensive Mock Interviews ($0, No Credit Card Required)
> Subsequent Packs: $9 / ₹199 for 10 sessions (Zero auto-debit, credits never expire)

## Overview & Hiring Pattern
.NET and C# powers large-scale enterprise banking, healthcare, and SaaS systems. Interviews test deep knowledge of the Common Language Runtime (CLR), asynchronous concurrency, ASP.NET Core web architecture, and database access performance with Entity Framework Core. Sophia conducts conversational drills to test your conceptual clarity.

## What Sophia AI Evaluates in This Track
- 🎯 ASP.NET Core Lifecycle & Middleware — Request pipeline, custom middleware, filter pipeline (Action, Authorization, Exception filters), and minimal APIs vs controllers.
- ⚡ C# Language & CLR Internals — Value types vs reference types (stack vs heap), Garbage Collection generations (Gen 0, 1, 2, LOH), async/await Task state machines, and Span<T>/Memory<T>.
- 🗄️ Entity Framework Core & LINQ — IQueryable vs IEnumerable, lazy vs eager loading (Include/ThenInclude), AsNoTracking() optimization, and handling migrations.
- 🧱 Dependency Injection Lifetimes — Transient vs Scoped vs Singleton, captive dependencies risk, and IServiceScopeFactory usage in background workers.
- 🚀 Enterprise Architecture & Microservices — Clean Architecture / CQRS with MediatR, gRPC in .NET, RabbitMQ/Azure Service Bus messaging, and distributed caching with Redis.

## Platform Comparison: RateMyInterview vs. Traditional Tech Prep

| Evaluation Dimension | RateMyInterview (Sophia AI) | LeetCode | Pramp / Peer Prep | Human Coaching |
| :--- | :--- | :--- | :--- | :--- |
| **Interview Format** | Real-Time Voice AI Dialogue (~900ms audio latency) | Silent text coding sandbox | Peer video chat | Scheduled video call |
| **Resume Defense** | Yes — probes real project architecture & stack | No — generic toy problems | No — fixed peer prompt | Yes — manual review |
| **Availability** | 24/7 Instant On-Demand (Zero scheduling) | 24/7 Self-study | Requires peer scheduling | Days ahead booking |
| **Starter Access** | 2 Free Full Interviews ($0, Zero Card Required) | Freemium ($35/mo Premium) | Limited peer tokens | $150–$250 / hour |
| **Scoring & Feedback** | Instant objective rubrics, transcripts & model answers | Unit test pass / fail | Uncalibrated peer notes | Subjective verbal notes |
| **Billing Model** | On-demand credit packs ($9 / ₹199 for 10), 0 auto-debit | Recurring monthly subscription | Token subscriptions | Hourly coaching fees |

## Tested Technical Curriculum
- C# Language Features: Value vs Reference Types, Records, Pattern Matching
- ASP.NET Core Architecture, Middleware Pipeline & Filters
- Dependency Injection Lifetimes (Transient, Scoped, Singleton)
- Entity Framework Core: Queries, Tracking, Migrations & Indexing
- CLR Memory Management: Garbage Collection (Gen 0, 1, 2, LOH) & Span<T>

## Frequently Asked Questions
### Q: What are the most common .NET Core interview questions?
**A:** Common topics include: Service lifetimes in ASP.NET Core DI (Transient, Scoped, Singleton), Async/Await vs Task.Run, Entity Framework Core AsNoTracking() performance benefits, middleware pipeline order, and Garbage Collection mechanics in the CLR.

### Q: What is the difference between IQueryable and IEnumerable in C#?
**A:** IEnumerable executes queries in client memory (in-memory filtering), while IQueryable builds an Expression Tree that translates LINQ queries into native SQL and executes them directly on the database server.


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### Start Practicing Now
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