Interview Q&A

Master technical and career interviews with structured answers—short definition, real examples, pitfalls, and how to answer in 60–90 seconds.

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Working with JSON options: System.Text.Json vs Newtonsoft.Json?

System.Text.Json: Default in .NET Core 3+, fast, built-in, less feature-rich. Newtonsoft.Json: More mature, supports advanced scenarios (e.g., polymorphic deserialization). Can switch to Newtonsoft by adding AddNewtonsof…

ASP.NET Core Read answer

ASP.NET Core ASP.NET Core Tutorial · ASP.NET Core

  • System.Text.Json: Default in .NET Core 3+, fast, built-in, less feature-rich.
  • Newtonsoft.Json: More mature, supports advanced scenarios (e.g., polymorphic

deserialization).

  • Can switch to Newtonsoft by adding AddNewtonsoftJson() in MVC options.
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