What is the difference between open-source and closed-source data?

Review Questions 2. Pedophiles are broken down into three categories or severity levels. List the three levels and define them in your own words, focusing on how they are different from each other. The three are secretive pedophile, child pornography collector, active pedophile.3. In what ways has the Internet emboldened pedophiles? How are their techniques different in an online world than they were years ago?Review Question1. What is the difference between open-source and closed-source data?2. Explain the three basic concepts that are needed to search the Internet effectively for intelligence information.3. What are Boolean search techniques? Provide three examples.