Deloitte Salesforce Developer interview questions

Deloitte recruiter reached me for the interview. First was written test consisting of 45 MCQ's which should be completed in 60 min. The questions were ranging from medium to difficult. Second round was technical round where questions were asked on admin and development part Third was techno -managerial round where I was asked write trigger code for particular scenario and implement using Batch apex, it was quite difficult.