A、5
B、15
C、25
D、35
E、45
F、55
更多“Voice activity detection （VAD） suppresses the transmission of silence patterns. On average， and assuming that a link carries at least 24 calls， what percentage of total bandwidth could VAD save？（）”相关的问题
A、Voice Traffic uses Assured Forwarding B、Voice Signaling traffic uses Assured Forwarding C、Voice Signaling traffic uses priority queuing D、Voice Traffic uses priority queuing E、Voice signaling traffic should use priority queuing with Assured Forwarding
A、Increase the queue size of the voice class. B、Guarantee bandwidth during congestion to the voice class with a bandwidth command. C、Increase the tx-ring of the egress interface. D、Implement LLQ for the voice class. E、Decrease the rx-ring of the egress interface. F、Decrease the queue size of the voice class.
A、A.Static secure MAC addresses can be configured in conjunction with voice VLANs. B、B.PortFast is automatically enabled when voice VLANs are configured. C、C.PortFast must be manually configured when voice VLANs are configured. D、D.Voice VLANs are typically configured on uplink ports. E、E.Voice VLANs are typically configured on access ports.
A、A.latency must be kept below 150 ms B、B.latency is not a concern as long as jitter is kept below 30 ms C、C.voice packets do not require a specific type of queuing D、D.voice packets are rather small E、E.voice packets require TCP for rapid retransmission of dropped packets F、F.voice packets require a fairly constant bandwidth reserved for voice control traffic as well as forthe voice payload
A、The port is configured for both data and voice traffic. B、The port is fully dedicated to forwarding voice traffic. C、The port will operate as an FXS telephony port. D、Voice traffic will be redirected to VLAN 222.
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