JP Morgan Interview Question & Answers | Java Developer 7+ Years Experience for Mumbai

Hello Developers, my name is Kailash. A few days ago, my old colleague and dear friend interviewed for JP Morgan in Mumbai. After the interview, he shared with me the questions he remembered. I would like to share those interview questions with you all. I have also covered them on my YouTube channel with answers, so if you want to see the answers, you can visit my YouTube channel. I will share the link here. Please note that these are real interview questions that he faced. My intention is simply to help anyone who is seeking a job, and if my post can assist them, I will consider my job done. I believe in sharing knowledge. So, it goes like this:

1. What is caching ? What is Distributed cache system design ?

2. What are the difference Between Callable and Runnable in Java?

3. How to create a Docker file of a Spring Boot project?

4. Can you explain Spring Boot core concepts?

5. Multithreading use cases ..how do we handle huge data and design related questions like how do you design an application

6. Can you explain How HashMap and concurrentHashMap works?

7. What exactly is containerization, and what are the steps involved in creating containers?

8. Write code to invoke a rest service? Use RestTemplate

9. What sets PCF apart from other cloud service providers, such as GCP, Azure, and AWS?

10. How is the GIT and Jenkins configured, how does the build job execute when there is any git push.

11. Print the count of employees with respective months. Given Employee table with ID and DOJmonth. Hint: User count and groupby

12. How can the listener listen to Kafka queue. how does the topic work in Kafka.

13. What is the difference between -X and -XX arguments ?

14. Explain different areas of Java Heap.

15. Can System.exit takes negative value?

16. Write a program to Sort elements of a list in predefined order

17. What is default thread pool used by CompletableFuture

18. How to calculate the thread pool size based on the number of CPU cores.

19. What is service discovery?

20. What is blue green deployment strategy ?

21. Design Round Question. How would you propose a solution of this problem?

Design Round: A parking lot with multiple entries and exit points. 2 constraints:
When the Vehicle enters, it should be directed to the closest empty slot.
When the Vehicle exits, it should be directed towards the closest exit points.

*YouTube * video URLs are available. If you are seeking answers to each question, please take a look

Part - 1 https://youtu.be/ClvRd8nfuTQ?si=BVQj-UTv4RFVEcrH
Part - 2 https://youtu.be/qLFG0BZc3BA?si=rSTRYf8jQxDArxc4

Thanks,
Kailash
(Java Charter)
Happy Learning :) and Happy Coding :)