Part 107 Test was an exam that first came into custom in August 2016. It is a necessity to clear this examination for all those people who are studying to operate a drone commercially. Administering under the aviation testing orders set by US aviation and authority, those candidates who pass the examination get the permit to fly the drone, and they can take the flight in the air according to the customs that are measures and methods noted down under Part 107.
The experiment is not straightforward to clear, and you will have to take study classes to learn the subject and go through the material, so you are prepared to appear for the examination and then clear the test.
There are aeronautical education clubs that give the education programs and can guide you with the basic course so you can get your license.