Technical Questions: Programming Fundamentals: Explain the difference between a structure and a union. What is an array, and how is it used? Define Object-Oriented Programming (OOP) and its core principles. Database Management: What is SQL, and how is it utilized? Describe the different types of joins in SQL. What are keys in SQL, and what are their types? Coding and Problem-Solving: Write a program to check if a number is prime. How would you find the largest element in an array? Behavioral and HR Questions: Tell me about yourself. Why are you interested in working with Mphasis? Where do you see yourself in five years?