ASP.NET Core MVC - Cross-Platform Development - Finishing Touches

The video tutorial focuses on enhancing a user interface by modifying the layout and controlling access based on user authentication. It begins with removing unnecessary links from the navigation bar and moves on to dynamically displaying UI elements based on whether a user is authenticated. The tutorial then explains how to restrict access to certain controllers using authorization tags, ensuring only authorized users can access specific routes. Additionally, it covers allowing anonymous access to certain actions within controllers. The session concludes with final layout adjustments and planning for custom methods related to class management.

Explain the significance of the 'allow anonymous' annotation in a controller.

What steps should be taken to ensure that unauthorized access is restricted in controllers?