Cognizant Programmer/Analyst interview questions

First will be aptitude round and the interview for 15 to 20 minutes for Technical starting with any programming language to describe your project (if any). then at last bare minimum of HR round of 10 minutes where they will ask why our company.

Introduce yourself. Name and explain any new technology that you had studied recently. (In my case block-chain explanation) Differentiate between traditional and newer storage technique. Real world example of all the OOPS concept. Difference between array and linked list. Cross questioning on the technology that I had answered earlier. Explain the concepts of deep learning. Explain the key concepts of Hadoop(Big Data Storage). In which programming language are you comfortable. Asked 2-3 basic question of C++. Asked me to write a code to check a number is prime or not with least complexity. Asked me to write a code for the given star pattern.