A、business-critical traffic includes VoIP and voice signaling packets

B、SDM can be used to configure a basic QoS policy for incoming traffic on WAN interfaces andIPsec tunnels

C、SDM can provide QoS for real-time traffic and business-critical traffic

D、SDM creates a custom-queuing （CQ） or a priority-queuing （PQ） policy

E、SDM creates a low latency queuing （LLQ） service policy with its associated classes

F、when allocating bandwidth， values can be entered in either bandwidth percentage or kilobytes per second （kBps）