It was a 4 step process. 1. Online test which tested your aptitude, critical thinking during a crisis, your listening ability and your personality. 2. Tech interview 1: Questions based on OS(Memory management, paging, virtual memory, deadlock, semaphores, File management, etc), booting process of windows/linux, basic troubleshooting steps to solve issues, one coding question of the easiest level. 3. Tech interview 2: Questions based on Networking( diff. between OSI and TCP/IP and explain each layer in brief, DHCP protocol, all the protocols in network layer in detail, how IP packets move from host to destination, port numbers of various basic protocols, status codes of http, three way handshake, flow controls in transport layer, congestion control in transport layer, study IP in detail, networking commands to troubleshoot network issues, DNS) 4. Managerial round: They ask questions like "what were the problems you faced? what did you do to tackle this issue? what kind of feedback you recieved? what would you do if ___ problem arises?" in your projects or internship. Now they expect you to answer these questions in a STAR format (google it if you dont know about this). Moreover amazon have 14-15 leadership principles that they adhere to and make sure to slide in these leadership principles during answering their questions (this is quite important and do it subtly) Every round is a knockout round.