Java theory Questions

1. What is OOPs ?
2. Features of OOPs?
3. Method overloading and overriding?
4. Just in time compiler ?
5. Dynamic Binding ?

Microservices theory questions

1. Service Discovery ?
2. Service Registry ?

Spring Boot theory questions

1. Annotation for starting springboot application ?
2. Actuators ?
3. Some hands-on on streams like map, filter, comparator

DSA

1. 2 Sum

SQL

1. find the 2nd highest salary of an employee