Please direct me towards other platforms where I can ask this question in case here is not allowed.
-Application and job interviews are more about personality than to appear perfect
- Maybe you shold prepare to be able to roughly explain i.e. "what is core" in 2 Sentences should someone ask you.
- No one is perfect in ALL coding topics,
- Maybe you should google "What is a full stack developer"
I suppose it can be confusing. Here's a short overview.
.NET Framework is a combination of two things:
A virtual machine called the Common Language Runtime (CLR) that runs programs written in Intermediate Language (IL).
A big library of classes called the Framework Class Library (FCL) that consists of code written in IL.
When you want to write an application that targets the .NET Framework CLR, you don't write it in IL directly, but you write it in a different language like C# or VB.NET and then use a compiler to compile it to IL. When you are asked about experience with .NET Framework, people usually mean the C# language and the most commonly used classes from the FCL.
.NET Framework runs on Microsoft Windows. At some point they started working on a cross-platform version called .NET Core, which consists of a CLR that runs on other operating systems, and a modular set of libraries that together are more or less the same as the FCL, except with all the Windows-specific stuff left out.
.NET Framework is on its way out. Most new applications target .NET Core. As of version 5, .NET Core is simply called .NET.
ASP.NET is a framework for developing and running web applications that target .NET Framework. There is also ASP.NET Core, which targets (as you may have guessed) .NET Core.
My suggestion to you is that you first start learning C# and .NET Core. When you are able to write console applications for .NET Core, you can start learning ASP.NET Core for a web application backend.