Amazon

1 online assessment + 3 technical interviews 1st and 2nd interview rounds are DSA-based, with 2 DS questions in each round. 3rd interview includes 1 DS question and resume-based questions.

Trees and graphs are fundamental concepts that require a better understanding of core knowledge. Knowledge of Data Structures and Algorithms (DSA) is most required, so graphs are mostly focused on. At the end, interviewer questioning is a must.

It was nice. The interviewer was very helpful and friendly while also being very technical. The interviewer asked me many questions, and I was able to answer most of them correctly. However, I still don't know why I wasn't selected for an interview.