问题:
Refer to the exhibit. What is the effect when the switchport priority extend cos 3 command isconfigured on the switch port interface connected to the IP phone?()
A . Effectively, the trust boundary has been moved to the PC attached to the IP phone
B . The computer is now establishing theCoS value and has effectively become the trust boundary
C . The IP phone is enabled to override with aCoS value of 3 the existing CoS marking of the PCattached to the IP phone
D . The switch will no longer tag incoming voice packets and will extend the trust boundary to thedistribution layer switch
E . RTP will be used to negotiate aCoS value based upon bandwidth utilization on the link
Refer to the exhibit. What is the effect when the switchport priority extend cos 3 command isconfigured on the switch port interface connected to the IP phone?()
● 参考解析
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