The answer to this is false. For those who are not familiar with what Hadoop is, this is a collection of utilities that are meant to make sure that different computers are working correctly. Some machines are intended to be used for data and computation. This is also very effective in making sure that there is enough storage available for the data that will be checked and computed.
Different applications in Hadoop can be downloaded for free, but there are also some that would require a small fee before they can be used. Some people think that this is a type of database, but actually, this is not.