Which two statements about the QoS functionality of the Cisco SDM are true？（）
- Athe first step when using the SDM QoS wizard is to select the inbound interface on which the QoS policy must be applied
- Bthe SDM QoS wizard can be used to optimize LAN， WAN， and VPN interfaces
- Che SDM QoS wizard supports network-based application recognition （NBAR） to provide deep and stateful packet inspection
- Dhe SDM QoS wizard will apply custom queuing and priority queuing policies to the identified interfaces
- Ehe SDM QoS wizard will apply low latency-queuing，custom-queuing and priority-queuing policies to the identified interfaces
- Fto create and manage the QoS settings， the user must select the QoS wizard task under the Monitor optio