1. What is volatile? 2. What is concurrency? 3. How can you achieve concurrency in Java 11? Ans. Parallel Stream 4. What are the different scope of bean you used in spring boot? 5. How does @Controller annotation work internally.
Microservices Interview Questions
107 microservices interview questions shared by candidates
What is jvm and work flow internal? ( interviewer will ask class loader, how it works,... etc.,)
Multithreading concept work flow with syntax? How many way we can defined to stop the thread?
How the Security is handled in your project. How do you define and implement networking and deployment process What are the Code quality tools used in project. Explain the architecture and why it is that way How do you come up with estimations for requirements. Along with these there were some technical questions on security, microservices part.
Core Java- use of streams in java What happens if I try to access a variable(which is declared outside) inside a .forEach block? Is it possible? Yes/no -Why? Hashmap vs concurrent hashmap and it’s workings. How many threads can access a concurrent hashmap at a time? Is it possible to modify a array-list while iterating it? Is there a way to do it? Some coding questions on overriding and exception handling concepts
basics
JAVA & MICROSERVICE related
What is Java What is Polymorphism Why is Java Platform Independant
Algorithm question about Head, how to get first 10 highest numbers from streams of data coming from hundreds of sensors?
First part is uploading resume, and it will ask you why you wanna join IRAS. Second part was the coding. 2 theory, 8 output prediction and 2 debugging questions. Need 60% to pass the test. Third part was the feedback.
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