There were three interview rounds, all held on-campus.

In the first round, they asked questions about my final-year project, discussing various tech stacks like ReactJS and how I implemented the authentication part of the website using JWT tokens. Later, they also asked some basic DSA questions related to linked lists and strings.

In the subsequent rounds, they asked deep questions on C++ pointers, NodeJS, and MongoDB, ranging from direct theory questions to implementation.

The third round was a good composition of HR and technical questions. The interviewer asked about my favorite music composer, followed by asking me to design the database for a popular audio-editing software known as Audacity.

1. How did you implement the authentication page of your website using JWT tokens? Apart from JWT tokens, 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 such as albums, tracks, and effects.

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, ensuring all object-oriented programming properties are utilized within a single programming file. Also, instead of directly taking input from the console, allow users to make choices on input methods while abstracting these methods from the user.