Pregunta de entrevista de Tata Consultancy Services

*Explain concurrentHashMap. *What is @SpringBootApplication annotation ? *diffrence between load and get() in hibernate. *how to manage 2 databases for single microservice *return type of hash is *return type of equals is ? *junit which dependency *how to write junit for static method *@Component *Streams functions *What is spring actuator *@Transactional