CompuMatrice Software Engineer interview questions

1 st round is technical round second round is manager round and 3 rd round is HR round........ The interview is quite difficult......... Que- explain about SDLC lifecycle Explain about defect tracking tools Explain about defect life cycle

I applied through an Recruitment Agency.It is a one day process.In written test they asked String programs,matrix program,puzzel,two sql question.you can write programs either on java or python. I wont get any call after written test.