多项选择题
A.Duplex mode selections
B.Auto MDIX selections
C.Status Selections
D.Group mode selections
E.Port security selections
单项选择题 YourCustomerhas21users，eachrequiringbothPCandIPPhoneconnectivity.Whichisthecorrectconfigurationforthiscustomer？（）
单项选择题 You work as a network technician at Certkiller .com. Please study the exhibit carefully. What does "locking Down" the router entail？（）
单项选择题 Whendeterminingacustomer’stechnicalrequirementsforaCiscoUnifiedCommunicationssolution，whichimportanttoolcanbeusedtodeterminethebandwidthusedbydifferentcodecswithvariousprotocolsoverdifferentmedia？（）