单项选择题
A.at the PC
B.at the access switch
C.at the IP phone
D.at the distribution switch
多项选择题 You need to determine where the trust boundaries will be in a new Company VOIP design. Which two statements are true about these trust boundaries？（）
单项选择题 Refer to the exhibit. Based upon the information that is given， how will voice traffic from the phone and data traffic from the PC be handled by SW_1？ （）
单项选择题 The voice VLAN feature has been enabled on a new Company Catalyst switch port. What is the effect of this？ （）
