单项选择题
A.The CoS is trusted for 802.1P or 802.1Q tagged traffic.
B.PortFast is disabled on the port.
C.Port Security is automatically enabled on a voice VLAN port.
D.Untagged traffic is sent according to the default CoS priority of the port.
E.None of the other alternatives apply
单项选择题 Refer to the exhibit. Which statement is true about where trust boundaries should be established in a network？（）
多项选择题 You need to configure a new Company Catalyst 3560 switch for a VOIP-enabled office. Which three statements are true about the voice VLAN feature on this switch？（）
单项选择题 Refer to the exhibit. Which statement is true about a voice VLAN？（）