Cognizant Trainee Analyst Programmer interview questions

First round is aptitude test.. It was very easy.. Then called for technical interview through mail.. It started from basics like,difference between C and Java.. Why still C powerful? Difference between method overloading and method overriding.. Project explanation.. then went through HR round.. where they asked what is ur long term gaol, will u stay with cognizant.. and few more hr questions

as usual aptitude and questions in c, c++, and question such as project related and to check communication flow like tell me about yourself . and final questions will u be flexible with location change .