ServiceNow interview questions

I went through 3 rounds of technical discussion, Mostly asked plain old javascript, object-oriented and Design patterns. And some logical implementations in a very optimized way like Str reverse, remove duplicates from the array. you pretty much don't answer these but you need to write code for every question asked.

ServiceNow visited our campus for recruitment. There was a written test initially which covered basic computer science questions, including OS,DBMS and some programming language related questions and few on aptitude. Out of this 25 students were shortlisted for interviews. I had to two technical round interviews and a HR discussion. The number of rounds varied for people, maximum being 4 technical rounds.