1. How did you implement the authentication page of your website using JWT tokens ? Apart from JWT token, what else can you use for the same ?
2. What are the various queries you can use in MongoDB for achieving CRUD operations in your project ?
3. Design the database for a music-editing software like Audacity displaying various tables like albums, tracks, effects etc.
4. Reverse a linked list.
5. How does a Google-Pay API work and how does your website come to know whether a payment through an external interface is successful or not ?
6. Reverse a string using proper classes and all so that all the properties of object-oriented programming can be used in a single programming file. Also, instead of directly taking inputs from the console, you have to allow users to make choices on taking inputs while abstracting the input methods from the user at the same time ?