Answer:
True is the correct answer for the above question.
Explanation:
A CFS(cloud file system) is used to create a spoke and hub method for the data distribution in which hub is a storage area situated on the central part of the cloud system. It is located in a public cloud provider like AWS.
It uses to manipulate the file for the purpose of data distribution so that it can store the file on the cloud easily with the available some spaces only.
It provides access to the user that they can manipulate the file for their needs if the files are available on the cloud.
The question scenario also states the same which is described above hence It is a true statement.
Solution :
Here, we need to perform JOIN operation of the students and registration.
Use NATURAL JOIN operator 
and so no need to specify Join condition.
Also we need to selection operator tp select only those course whose major in "philosophy".
Finally we projection operator π to project only distinct students name who took at least three courses.
![$\pi [\sigma_{\text{student's nam}e} [ \sigma(\text{three courses}) \Join \text{"Philosophy"}]]$](https://tex.z-dn.net/?f=%24%5Cpi%20%5B%5Csigma_%7B%5Ctext%7Bstudent%27s%20nam%7De%7D%20%5B%20%5Csigma%28%5Ctext%7Bthree%20courses%7D%29%20%5CJoin%20%5Ctext%7B%22Philosophy%22%7D%5D%5D%24)
Is this for a test, because someone else asked that.
