What two steps need to be taken in deploying AutoQoS for enterprise on routers？（）

• A、provide visibility into the classes of service deployed using system logging and SNMP traps
• B、determine WAN settings for fragmentation， compression， encapsulation， and Frame Relay-ATM interworking
• C、enable the AutoQoS VoIP for voice traffic
• D、generate and deploy MQC-based QoS policies
• E、profile the traffic with Auto-Discovery