What is the job of URL Filtering Protocol (UFP) server?

What is the job of URL Filtering Protocol (UFP) server?

A.
It blocks the unwanted URL

B.
It allows fast secure connections between the CVP servers and the Security Gateway

C.
It maintains a list of URLs and their categories

D.
It maintains the list of SmartConsole clients that allowto connect to Security Management Server

E.
It allows access to resources