OA on HackerEarth Hackathon 1) Part A - OA on HackerEarth 2) Part B - Discussion and optimization of the solution submitted in Part A In person Interview (focused on core computer fundamentals)

How does a Server and Client Communicate? Explain how OS manages ports, how messages are flown over the network, how can a server support multiple connections, when there is only a single port that's listening, etc...