Capgemini interview questions L1

1. How we store username password like secure data for different env?
2. When 1 service calls another service that service is secure, then how can we get data from that service?
3. Explain project different services and explain start-to-end flow of 1 service which you worked on (Search services).
4. If search services return 10,000 records, how can we handle it from the backend side (Pagination)?
5. How is the database connected in a Spring Boot project?
6. What is the @Bean?
7. What are @Autowired?
8. Spring vs. Spring Boot.
9. Spring MVC flow.
10. JWT token.
11. Java 8 features.
12. Explain each feature.
13. Static method, why?
14. Optional class, why?
15. Stream API coding question: String s = "I am Java"; count occurrence of each.
16. Introduction and roles and responsibility and also explain project.

L2 Introduction and roles and responsibility. @RequestMapping. When the request comes, how do they process (Spring MVC flow)? Why Spring Boot when there is Spring? Compatible feature. Lambda expression, functional interface, interface vs. functional interface. Stream vs. iterator in collection. In stream, where is the data stored? String vs. StringBuffer vs. StringBuilder. How to handle exceptions? Types of exceptions, main class of exception. How to handle exceptions in Spring Boot? What is deadlock? Can we use static inside synchronized? What is a thread and its lifecycle? @Entity class relationship in the database. Code for relationship like one-to-one. Count the occurrence of each vowel in a string with Stream API. Difference between Optional class vs. ternary operator in Java? Fetch vs. lazy loading. Give me an example of lazy loading in polymorphism.

Roles and responsibility of project.