Câu 119: 400-251: CCIE Security Written Exam

Which statement is true about Remote Triggered Black Hole Filtering feature (RTBH)?

1. A. In RTBH filtering the trigger device is always an ISP edge router. — đáp án hiện tại
2. B. It helps mitigate DDoS attack based only on source address.
3. C. It works in conjunction with QoS to drop the traffic that has a less priority.
4. D. In RTBH filtering the trigger device redistributes static route to the iBGP peers.
5. E. The Null0 interface used for filtering able to receive the traffic but never forwards it.
6. F. It drops malicious traffic at the customer edge router by forwarding it to a NullO interface.