Cognizant interview questions

1) Explain about microservices architecture 2.Give brief explanation about API Gateway configuration 3. What is the role of service registry and which registry have you used in your application 4. How you handle authentication and Authorization in your microservices 5. How to communicate each microservices one to another 6. How you create one microservices from scratch 7. What is meant by stereotype annotation and explain it 8. Transactional annotation which purpose you used in your application 9. Explain about concurrent Hashmap and explain about internal working structure 10. Lifecycle of maven 11. Do you have any idea about Docker and Kubernetes.. Coding: Some Java streams snippet questions is related to strings and number logic