单选题Why is QoS important in a converged network?（）A Because voice data packets must follow a single dedicated path through the networkB Because voice data packets should arrive quickly and sequentially, and with no lost dataC Because lost voice-data packet
题目
单选题
Why is QoS important in a converged network?（）
A
Because voice data packets must follow a single dedicated path through the network
B
Because voice data packets should arrive quickly and sequentially, and with no lost data
C
Because lost voice-data packets must be retransmitted
D
Because data does not need to arrive intact, so data transfer rates can be variable