HSBC Sr Software Engineer interview questions

1) What is difference between Abstract class and Interface? 2) Difference between static and dynamic polymorphism 3) List annotation of Springboot and its uses 4) Difference between Spring and Springboot? 5) Why to use SpringBoot than Spring? 6) What is use of Spring Actuator? 7) Spring Profiles. How to use it? 8) how to change port of SpringBoot Application? 9) What is Serialization and deserialization? how to do serialization and deserialization? 10) How microservice communicate with each other? 11) Why switch to SpringBoot if we already have Spring?