Collabera Engineer interview questions

HR contacted me through linkedin regarding Engineer I opportunity. After my confirmation to present my resume to their client it took 3 weeks to get my profile assessed. Then the interviews were conducted which were two telephone rounds only.

through elitmus i got interview call from collabera... had 4 rounds: 1. communication round : they just check ur communication. 2.technical round 1: puzzles + basic technical questions 3.technical round 2: about project +puzzles + technical questions 4. HR : why collabera ? strengths ? weakness ? family background ? common HR questions.