ASP.NET Core Configuration & Logging

Question 1

Which file is the primary configuration source in an ASP.NET Core application?

Accepted Answer

appsettings.json

Answer

web.config

Answer

config.json

Answer

settings.json

Question 2

What is the correct order for configuration providers in the default ASP.NET Core host?

Accepted Answer

appsettings.json → appsettings.{env}.json → environment variables → command-line

Answer

command-line → environment variables → appsettings.json

Answer

Environment variables first, then all JSON files

Answer

All sources have equal priority

Question 3

How do you access a nested configuration value 'Database:ConnectionString' in ASP.NET Core?

Accepted Answer

configuration["Database:ConnectionString"]

Answer

configuration.Get("Database.ConnectionString")

Answer

configuration.Database.ConnectionString

Answer

config["Database"]["ConnectionString"]

Question 4

What is the purpose of the IOptions<T> interface in ASP.NET Core?

Accepted Answer

To inject strongly typed configuration settings bound to a class

Answer

To define optional dependencies in DI

Answer

To configure middleware options at startup

Answer

To access environment-specific settings only

Question 5

Which method binds a configuration section to a C# class in ASP.NET Core?

Accepted Answer

services.Configure<TOptions>(configuration.GetSection("Section"))

Answer

configuration.Bind<TOptions>("Section")

Answer

services.BindOptions<TOptions>()

Answer

IOptions.Map<TOptions>()

Question 6

Which configuration provider lets you store sensitive data outside the project during development?

Accepted Answer

Secret Manager (User Secrets)

Answer

Environment variables only

Answer

Azure Key Vault only

Answer

Encrypted appsettings.json