Cognizant interview questions

First asked me to introduce to the panel. Then they asked me OOPs questions, like abstraction, polymorphism, difference between classes and objects. Then they gave me a string based coding question. Reverse words of a string. Like if the input is "My name is XYZ" then output will be "XYZ is name my". Then they asked about multithreading, garbage collector etc. Some DBMS questions were also asked. They did not see my projects, but some interviewer did see. HR questions were like, Are you willing to relocate, comfortable with night shifts etc

It’s smooth, but the process for onboarding will take more time than expected. They will delay for no real reasons. After the second round there is a HR round, for that they will max negotiate the amount