| 1 | How do you reduce MAUI app startup time? .NET MAUI › Performance & Optimization | .NET MAUI | Performance & Optimization | Intermediate |
| 2 | How do you reduce MAUI app startup time? .NET MAUI › Performance & Optimization | .NET MAUI | Performance & Optimization | Intermediate |
| 3 | Why does my app crash on startup only in Release builds? .NET MAUI › Troubleshooting & Common Errors | .NET MAUI | Troubleshooting & Common Errors | Beginner |
| 4 | Why does my app crash on startup only in Release builds? .NET MAUI › Troubleshooting & Common Errors | .NET MAUI | Troubleshooting & Common Errors | Beginner |
| 5 | How should a BackgroundService handle a fatal startup dependency failure, such as being unable to connect to a required message queue at launch? .NET › Background Services | .NET | Background Services | Intermediate |
| 6 | How do you validate configuration options at application startup to fail fast on misconfiguration? .NET › Configuration & Options | .NET | Configuration & Options | Intermediate |
| 7 | How does IHostApplicationLifetime let a BackgroundService react to application startup and shutdown events? ASP.NET Core › Background Tasks & Hosted Services | ASP.NET Core | Background Tasks & Hosted Services | Intermediate |
| 8 | How would you configure a BackgroundService to fail fast and crash the host if a critical startup dependency (like a message broker) is unreachable? ASP.NET Core › Background Tasks & Hosted Services | ASP.NET Core | Background Tasks & Hosted Services | Intermediate |
| 9 | How would you validate that all required environment variables are present and correctly typed at application startup, rather than discovering a missing one at runtime? Node.js › Environment Variables & Configuration | Node.js | Environment Variables & Configuration | Intermediate |
| 10 | Explain the MAUI app startup and the role of MauiProgram. .NET MAUI › Fundamentals & Architecture | .NET MAUI | Fundamentals & Architecture | Advanced |