What is routes, explain mvc architecture, rails filters, callbacks, custom validation

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Accepted Answer

Routes define URL patterns for mapping to controller actions in Rails. MVC architecture separates concerns in web development.

Routes in Rails define URL patterns and map them to controller actions
MVC architecture separates the application into Model, View, and Controller components
Rails filters are methods that run before, after, or around controller actions
Callbacks in Rails are methods that are run at certain points in an object's life cycle
Custom validations in Rails allow for defining custom validation rules for models