Cognizant Interview Question

SQL, DBMS, OPPs and cloud computing concepts - Asked to introduce myself - Talked about career plans and future - Asked a simple code to check for prime number (along with possible optimisations) - Java OOPs questions like pillars of OOPs and examples for them - Asked about SQL and DBMS basics - Almost asked every basic Operation ,like DDL./ DML statements and give examples for them - Joins and subqueries - Types of joins and examples - like operator and questions on employee table - cloud computing basics and some AWS services