Deloitte Interview Experience | Interview Questions And Answers
Channel: Drunken Engineer
Date: 2021-10-28

This video contains Core Java, Spring Boot, Hibernate, REST, Microservices, 
Sql and Data Structures Interview Questions that were asked at Delloite 

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1. My brief introduction.
2. My project architecture and tech stack used in it.
3. What is JVM?
4. What are the different Class loaders in JVM?
5. Why String class is immutable?
6. How to make a class immutable?
7. What are basic OOPS principles?
8. What do you understand by abstraction? How can it be achieved in Java?
9. What are functional interfaces?
10. How can you override the default methods from a functional interface?
11. Which Collections have you used in your project?
12. What is the internal working of Hashmap?
13. Why was Concurrent Hashmap introduced? How is it different from Hashmap?
14. Why do you use ArrayList? Does it allow duplicates?
15. What are the new features of Java 8?
16. What is multi-threading? How have you implemented it in your project?
17. What is JUnit? How have your written JUnit test cases for your Repository class?
18. How does a Spring Boot application work? Explain the flow.
19. How do you accept requests from the client? Which annotations have you used?
20. Which Design pattern have you used in your project?
21. How do you call a web service from your microservice?
22. Explain the annotation @SpringBootApplication.
23. What is the difference between @Component and @Bean?
24. What are the various scopes of a Bean?
25. Difference between Singleton and Prototype scopes.
26. What is a Session in Hibernate? Is it thread-safe?
27. Difference between Session and SessionFactory.
28. How do you call a Stored Procedure using Hibernate?
29. How have you handled security in your microservices?
30. Explain the deployment process in your project.
31. What is docker? What are its advantages?
32. What is Jenkins?
33. Given a list of numbers [10, 6, 20, 5, 4, 50, 100, 80]. Find the second largest number from it in Java as well as SQL.

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