ASP.NET Core Configuration & Logging 2

Question 1

Which interface is used to write log messages in ASP.NET Core applications?

Accepted Answer

ILogger<T>

Answer

ILog

Answer

IApplicationLogger

Answer

ILogWriter

Question 2

What is the lowest severity log level in ASP.NET Core logging?

Accepted Answer

Trace

Answer

Debug

Answer

Information

Answer

Verbose

Question 3

Which method logs a message at the Error level using ILogger?

Accepted Answer

logger.LogError(message)

Answer

logger.Error(message)

Answer

logger.Log(LogLevel.Error, message)

Answer

logger.WriteError(message)

Question 4

What does the Logging:LogLevel:Default configuration key control?

Accepted Answer

The minimum log level for all categories that don't have a specific override

Answer

The default log provider to use

Answer

The output format of log messages

Answer

The maximum number of log entries stored

Question 5

Which NuGet package provides structured logging with Serilog in ASP.NET Core?

Accepted Answer

Serilog.AspNetCore

Answer

Serilog.Extensions.Logging

Answer

Microsoft.Extensions.Serilog

Answer

AspNetCore.Serilog

Question 6

What is structured logging in the context of ASP.NET Core?

Accepted Answer

Logging with named placeholders that capture values as structured data, not just strings

Answer

Writing logs to a structured database table

Answer

Logging in XML or JSON format only

Answer

Using log levels and categories together