Amazon

Good, should be strong in basics. Foundational knowledge on your area of expertise is good to have. Try to explain your answers scenario-based which you have implemented in work.

Very easy. One online screening and one two-hour-long interview. They asked behavioral and technical questions, and it was mostly technical. You really need to know all the different types of protocols and OSI layers.

Four interviews, each lasting one hour, focused heavily on leadership principles. The last interview was with the hiring manager, who was expected to present a project based on the given criteria.