Preguntas de entrevista para el puesto de Internship en WD

There will be a presentation about ourself with slides. Then, it will proceed by technical question like programming, you need to answer the question by writing it live, so the interviewer will give access to control her screen and type it on her question's slides ppt. So, there are levels of difficulty so you need to answer it as quickly as possible to pass each level and understand the question properly. It just like your final examination question, so expect a bit lengthy word.