Which of the following statements is valid with regard to Domain Name System (DNS) sinkholing?

Which of the following statements is valid with regard to Domain Name System (DNS) sinkholing?
A . it requires the Vulnerability Protection profile to be enabled
B . DNS sinkholing signatures are packaged and delivered through Vulnerability Protection updates
C . infected hosts connecting to the Sinkhole Internet Protocol (IP) address can be identified in the traffic logs
D . It requires a Sinkhole license in order to activate

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Answer: C