What does the velocity of the three Vs in big data mean? And provide two examples of varying velocity from the industry.

 Why are data leaders, data scientists, and data entrepreneurs different?

 Which of the following datasets—unstructured, structured, or semi-structured—needed greater cleaning before processing? and provide an instance?

 For data to be used as a source for insights, a data scientist is needed. What does Data Science content insight mean? Give an example to illustrate your response?