Cognizant Programmmer analyst interview questions

There was a total of 3 rounds, the first was written, 2nd was face-to-face(technical), and the final round was the managerial round. Even though there was a mail saying one-on-one interview scheduling, I had to wait in line for my turn of the interview. Took whole for 3 rounds to get over, most of the time went in waiting as there were many people who came for their interview.