For which two network problems would QoS be a good solution？（）

A.video conferencing traffic tends to be much more bursty in nature and is more prone to have an impact on other traffic flows
B.latency requirements are less stringent for video traffic than for voice traffic
C.video traffic is less sensitive to dropped packets than for voice traffic
D.video traffic requires the retransmission capabilities of TCP whereas voice uses UDP
E.video traffic tends to be much more bursty in nature and is more prone to have an impact on other traffic flows
F.voice traffic requires the retransmission capabilities of TCP whereas video uses UDP

A.the two steps of digital to analog conversion are decompression and reconstruction of the analog signal
B.the two steps of digital to analog conversion are decoding and filtering
C.the two steps of digital to analog conversion are decompression and filtering of the analog signal
D.the two steps of digital to analog conversion are quantization and decoding

A.Choose Configure >Access_Point， then enter the AP MAC address
B.Choose Configure >Access_Point， then enter the IP address of the AP
C.Wait until the WLC downloads its code from the WCS and choose the access point from the list under the WLC option of the Configure menu
D.Wait until the AP downloads its code from the WCS and choose the access point from the list under the Access_Point option of the Configure menu