Pregunta de entrevista de Babylon

Describe QuickSort algorithm. Question about Multithreading and Concurrency. Write SQL queries given a basic schema about employees in one table. Java Core questions. Hibernate questions. Spring questions like what's the default type of Spring if we don't put any @anotation on the class. How to avoid Hibernate to retrieve objects one by one by ID, what to change in Hibernate config if we are moving from one database engine to another.