J.P. Morgan Software Developer Engineer interview questions

The interview was set up a while back. I felt that the job description was not clear enough in saying that the position required mainly webservices knowledge which I had a smattering of. I had the said pre-requisites but the Webservices questions were many and threw me off. Also, I think the interviewers were behaving badly. I think once they muted and were laughing. I saw no reason whatsoever for it. A little unprofessional, I would say.