Backend Developer

Given an object with a sub-object within it, write a function to flatten the object.

1. What are promises? (Learn)
2. How does javascript handle asynchronous tasks? (Learn)
3. Difference between async await and .then() functions. (Learn)

1. A challenging task that I worked on.
2. What is state in React?
3. What are props in React? (Learn)
4. Different ways to manage state in React.
5. Why use Redux over local state or Context API?
6. Explain the architecture of Redux. (Learn)
7. What is Node.js? (Learn)
8. What is the event loop in Node.js? (Learn)
9. Different design principles I have followed in developing Node.js applications.
10. ORMs and ODMs that I have used in Node.js.
11. What are aggregations in MongoDB? (Learn)
12. How can we optimize queries in MongoDB?
13. How does MongoDB manage data replication? (Learn)

Design the frontend, backend folder structure, and database schema for a Google Calendar-like application.

Create a high-level architecture for implementing a Google Calendar-like application.

Design the high-level database schemas, the various APIs to be used in the backend, and the different components to be used in the frontend.