Cisco Exam Questions

Which three statements about remotely triggered black hole filtering are true?

Which three statements about remotely triggered black hole filtering are true? (Choose
three.)

A.
It filters undesirable traffic.

B.
It uses BGP or OSPF to trigger a network-wide remotely controlled response to
attacks.

C.
It provides a rapid-response technique that can be used in handling security-related
events and incidents.

D.
It requires uRPF.