Tata Consultancy Services interview question

For Digital: Technical: 1. Example of Load Balancer 2. Difference b/w Switch and Hub 3. MongoDB vs My SQL 4. Virtual Function 5. What is recursion. 6. Write a code of factorial of a number using function Managerial: 1. Brief about Project. 2. How you can achieve more accuracy? 3. Future aspect of that project. HR: 1. Strength 2. Weeknesse 3. Night shift availability 4. Hobby