ServiceNow Associate Applications Developer interview questions

I applied through college,basically the first round on MCQ's ,there were 30 mcq's and you need to solve in 30 minutes.Cutoff will be nearly 25 marks.Mcq's were on expected outputs for programs,dbms,2 questions on quant,and on trees. Out of 150 students 25 were shortlisted for second round that is technical interview ,and in that round mostly they asked on trees,linked lists,and to write program on paper.i got rejected in that round and 10 of them cleared to next round .Totally there were three interview rounds and finally 3 of them got placed.