Cognizant Programmmer analyst interview questions

It was an easy interview. They asked me one question based on array two pointer approach. They also asked about OS, DBMS, OOPS and projects. The interview was of 30 minutes.

First aptitude test was conducted through superset. Then in next round shortlisted from the aptitude test people are interviewed through online. In interview interviewer asked few probability questions and asked about sql distinct also asked to code how to reverse a string.