单项选择题
A.Channels 1-6-11
B.Channels 1-3-5
C.Channels 7-11-1
D.Channels 2-4-6
单项选择题 Atechniciannoticesthatwhentryingtopingaworkstationbynetworknametheworkstationdoesnotreplybackoverthenetwork.TheworkstationispartofthedomainandisabletogettotheInternet.Whichofthefollowingisthecauseoftheproblem?()
单项选择题 Asecondnetworkcardinaserverthatactivatesiftheprimarycardfailsisanexampleofwhichofthefollowingnetworkperformanceoptimization?()
单项选择题 Routingconvergencetimeiswhichofthefollowing?()