I was shortlisted in amazon ml summer school and they give those students a chance to intern at amazon at applied science intern, there was a online test first which had 2 easy dsa questions which had to be done in 70 minutes and i was done with them in 10 min, then there were two interviews, first was focused on DSA and had 2 questions in 45 min, both were easy-medium and i was able to do them, then the final interview was on machine learning in which i am not very confident and i couldn't pass this round.