Infosys Junior Java Software Engineer interview questions

Phone and Skype interview,asked basic questions,about threads, synchronization,Hadoop.,asked to do some basic programs.Then passed on to Hadoop interviewer,asked questions about map reduce,hive . 1 what are threads 2difference between string buffer and string builder 3 describe map reduce

It was a good experience giving an interview at Infosys Pune Campus. The facilities at the campus were world-class. The interview was 20 min long but the waiting time was more before the interview.