CAn any body clearly tell me what is quality assurance and software testing is I am a fresher and I have got an oppurtunity to work in this field . I have got my interview on this. Please help me in this regard so that i can become a quality assaurance engineer
First of all a warning - not all answers to posts are correct so you might want to research and verify any information you are provided for your interview.
I do not usually answer interview questions but I will say one or two things here. I also qualify that these statements are my experience from the US. As you are a "fresher" I assume that the interview you are going to is for an entry level position. If it is you will not be expected to be an expert but you will be expected to show that you have researched the subjects and have shown an attempt to gain some knowledge prior to the interview.
Good luck in your venture and welcome to the world of QA and QC.