Cognizant Dot NET Developer interview questions

technical round interview which lasted approximately 45 mins . It was a video call interview ,the interviewer started the discussion with knowing what all I worked iny previous organization ,what all components I had worked on previously .

A Dot net drive was held on 17march 2018 Gurgaon.what an unorganized process of managing the interview.Many candidates had thier first round after 3 to 4 hours of waiting. After clearing the first round, asked to fill the salary stack up form.i think it was the means of shortlisting the candidates. Anyhow after that they asked to leave, and was told that we will receive call from HR. Till now people have no update on the call.neither the HR is responding to mails. No idea what was the purpose of drive.was it only for marketing purpose. It was a sheer waistsge of time.