Java Developer | Interview experience | experience 2 - 3 years | Mind Graph Company

I have made a video for youtube I have discussed the interview experience this is my video title " Java developer | Interview experience | experience 2 - 3 years| Mind Graph Company" The description is this L1 Round (1st Round) 1) Live records show 2) web sockets 3) Broker Kafka 4) Null Pointer Exception. How could you debug that ? 5) Equal to and equal and dot equal 6) scenario where double equals fails to work 7) HashMap and concurrent HashMap 8) Your application is deployed, but CPU usage is high then, who to you fix that CPU usage 9) how to optimize to the API? 10) Tell something about Index, pagination, DTO 11) Redis caching where were you used in the application 12) When 10 records in database, in Cache also to record's lobes on a new records are added to the database. How the redis caches understands it. 13) How whole spring boot application structure you have followed 14) @ Autowired 15) why we should not use @autowired annotation and what is the alternative of @ Autowired 16) we shifted @Autowired to construction injection 10) After deployment, in your local environment everything is fine, in DEV also working fine, but in production not working fine, and also all configurations in application properties are ok and good, then when your will to? 18) Have you used MongoDB? 19) Write code for department-wise highest salary using streams 20) write query for department-wise highest salary L2 Round (2nd Round) 1) JWT 2) Vector vs Array List 3) Collection is different from collections 4) Hash Code and equal contract, 5) Class path Variable vs path variable 6) HashMap Map in Multithreading 7) features of Spring Boot 8) Spring Best application start 9) default port of Tomcat 10) Can we disable the default server 11) HTTPS request in Spring Boot 12) Request Mapping Vs Get Mapping 13) embed container is wan 14) actuator toy spring foot 15) @componentScan 16) write program for a Palindrome string L3 Round (3rd Round) communication, pronunciation, and sentences. Tell about the project and about the previous company so please create a thumbnail for the video please help