试题详情
- 单项选择题 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
- C
关注下方微信公众号，在线模考后查看
热门试题