.NET and ASP.NET interview questions: - Explain an application domain?

This is an interesting question asked in most of the interviews and favorite question of 3 interview takers out of 5.
So proceed with the following answer: -

Earlier “PROCESS” was used as security boundaries. One process has its own
virtual memory and does not overlap the other process virtual memory; due to
this, one process cannot crash the other process. Therefore, any problem or
error in one process does not affect the other process. In .NET, they went
one-step ahead introducing application domains. In application domains, multiple
applications can run in same process without influencing each other. If one of
the application domains throws error it does not affect the other application
domains. To invoke method in an object running in different application domain
.NET remoting is used.




View the following video on ASP.NET Authentication and Authorization as follows:-




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