ARCS Infotech interview questions

Interview process was of 4 rounds. In round 1, they primarily asked questions about DSA questions of medium to high difficulty. Second round was about my skill set that is related to MEAN stack. Lot of node related questions were asked. I answered all questions correctly. Third and fourth round were 2 days later. In third round they asked about mix of Database, javascript, Angular, node and bit of devops. Fourth was regarding HR and salary negotiations.