Autoproxying is an important concept to understand when preparing for a Spring MVC interview question. It refers to the ability of the Spring framework to automatically create proxies when creating MVC controller objects. When autoproxying is enabled, it helps the framework determine if certain methods are suitable for invocation and if they should be invoked in a particular order. In addition, autoproxying enables controllers to be annotated with special marker annotations that tell the framework which methods to invoke and how.  Autoproxying makes it easier for developers to use the MVC pattern with less boilerplate code; instead of writing a lot of plumbing or setup code, you can simply build upon standard annotations provided by Spring and configure your controllers as needed. Lastly, wrappers around existing business logic or service objects become available with autoproxy, allowing them to be seamlessly integrated into your application's workflow. All of these features combined make autoproxying an essential tool for any developer pursuing a career in designing and developing applications with Spring MVC.