Tech Mahindra interview questions

1.What is spring MVC 2.Which Spring boot Annotations you used in your project 3.What are spring boot Profiles 4. Explain Java8 Features. 5. what is Functional Interface? Why it is introduced when we have an Interface? 6. Collections and which are all the collections you used in your project. 7. Write a java program to demonstrate lambda expression. 8. what is spring boot actuator? 9. How do two microservices communicate with each other? 10. What is kafka? 11. Modules in angular? 12. Why we use Ng Serve do ? 13. What are components in angular? 14. Collections vs Stream