单项选择题
A.Faulty cable on the workstation
B.Wrong host name on the workstation
C.Wrong WINS on the workstation
D.Incorrect IP address assigned to the workstation
单项选择题 Asecondnetworkcardinaserverthatactivatesiftheprimarycardfailsisanexampleofwhichofthefollowingnetworkperformanceoptimization？（）
单项选择题 Routingconvergencetimeiswhichofthefollowing？（）
单项选择题 AtechnicianisinstallingabasicrouterforaSOHOnetwork.AfterinstallingtherouterthePCsconnectedtoitarenotabletoacquireanIPaddress.Whichofthefollowingdidthetechnicianfailtoconfigurecorrectly？（）