Questions from the project. My project was on REST, so he asked various typical questions on REST (Why, How, etc). He later asked me to design a REST API for a part of my project. He asked me to design an Uber Cab service. He gave me an instant scenario that there are 5 lakh drivers, and they all are sending a request to the server & database at a particular time. He asked how can you manage these requests efficiently. I gave answers by using the concepts of Load Balancer, Sharding, Master-Slave, etc. and he was pretty much happy to listen to the concepts. He asked me to write code from the front end to the back end of a particular request from any driver (say sending the information of his current location) of the above-designed Uber using technologies like JavaScript, Ajax, JSON, jquery, servlet, Mysql, etc. I wrote a 2-page code and he was satisfied.