MEAN stack mainly stands for MongoDB, Express, AngularJS, and Node.js.It is an open-source software stack for building dynamic websites as well as web-applications.

MongoDB is a database that uses JSON documents.By Express and Node.js back-end of the application or website can be designed. And AngularJS is used for designing the front end.

And the full form of CRUD is Create, Read, Write, Delete.

Hence this website can only create,read,write and delete and a dynamic website.