What is the primary purpose for the RPF check in IP multicast networks?

Posted by: Pdfprep Category: H12-261-ENU Tags: , ,

What is the primary purpose for the RPF check in IP multicast networks?
A . To establish reverse flow path of multicast traffic from the receiver to the source
B . To prevent multicast traffic looping through the network
C . To determine interface inclusion in the outgoing interface list
D . To prevent the movement of unauthorized multicast traffic

Answer: B

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