Which of the following description about the Huawei Desktop Protocol HDP is correct? (Multiple Choice)
A . All the upper applications are hosted through a virtual channel and the priority setting of the application is supported to ensure the basic user experience
B . Support video decoding acceleration, make video play clearer and smoother, maximum support 4k video play
C . Channel policy control can be conducted independently according to individual users, user groups, device types, etc. Fully guarantee the communication security of each user
D . HDP can provide clearer real-time sound, accurate reduction of sound details, PESQ over 3.4
Answer: BCD