Why data Engineers role is so crucial for data scientists. Even though data scientists have skills as data engineers why there is specific position as data Engineer? Other than Tabluea, power BI and Excel what are other softwares did data Analyst use. Is it necessary for an Data Scientist to be like Data Analyst and Data Engineers? Or Data Scientists are different from Data Analyst and Data Engineers. Why NLP and Machine learning are so important for data Scientists? Does MBA graduates play any role in Data Science and Data Scientists?