多项选择题
Which of the following are considered subcomponents of the problem diagnosis step of thetroubleshooting flow？（Choose all that apply.）（）
A.Eliminate potential causes B.Collect information C.Document causes D.Hypothesize underlying causes E.Verif/ hypothesis F.Examine collected information
单项选择题 WhichofthefollowingisnotacharacteristicofCiscoExpressForwarding？（）
多项选择题 WhichofthefollowingisanunlikelyreasonfortheARPprocesstofail？（）
多项选择题 Whichofthefollowingarevalidmodesofpacketswitchingonmostrouters？（Chooseallthatapply.）（）
