Round-1:
Hashmap and concurrenthashmap
Executor service
How do we handle exception in microservices, springboot application
How do microservices communicate
Functional interface
How to create an immutable class
Round-2:
Performance testing involvement
How microservices communicate with db
Docker
How do u handle exception in springboot and microservices
How do define dev, staging, prod in your application(springboot, microservices, etc)
Difference between delete, truncate and drop
Hashmap, treemap, linkedhashmap
What is concurrency
How do u define application configurations in your project
Write controller for crud operations
How do u provide security for rest api’s(url’s ports etc)
Oauth2
Authentication and authorization
Write program for reverse linkedlist
Sql query to find 2nd highest sal for employee (id, nme, salrary)
Java code for finding empname, empage, empsal compare using comparator based on empsal:
Circuit breaker, fallback, retry mechanism’s
Which logger app used and different levels of logs (eg: log4J)