Answer / sudhir sheoran

Application domain is both a container and a boundary which contains code and data.
Like OS have processes as the smallest unit of separation, similarly .NET have app domains.

A process can have multiple app domains but a app domain will be associated with only a single process.

App Domain is relatively cheap to create (compared to a process), and has relatively less overhead to maintain than a process.For these reasons, an AppDomain is a great solution for the ISP who is hosting hundreds of applications. Each application can exist inside an isolated AppDomain, and many of these AppDomains can exist inside of a single process – a cost savings.

They separation concern of applications is resolved by assigning different virtual space to different application.
So even if one application crashes it doesn't effect the other applications.

No two application can directly interact with other application even though in same process. They have to use .net Remoting kind of things to do that.

Answer / srikanth

Application domain is something that isolates the
application from interupting each other.

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