What are two benefits of control plane policing？（）

• A、protection against denial of service （DoS） attacks at infrastructure routers and switches
• B、 protection against known worm attacks in routers and switches
• C、quality of service （QoS） control for packets that are sourced from the data plane of Cisco routers and switches
• D、quality of service control （QoS） for packets that are destined to the control plane of Cisco routers and switches
• E、quality of service （QoS） control for packets that are destined to the data plane of Cisco routers and switches