单项选择题
Which of the following virtual MAC addresses is correct for the HSRP group 22？（）
A.0000.0c70.ac22 B.0000.0c07.22ac C.0000.0c07.acl6 D.0000.0c07.ac22 E.0000.0c70.cala F.0000.0d22.ac07
多项选择题 Whichofthefollowingareconsideredsubcomponentsoftheproblemdiagnosisstepofthetroubleshootingflow？（Chooseallthatapply.）（）
单项选择题 WhichofthefollowingisnotacharacteristicofCiscoExpressForwarding？（）
多项选择题 WhichofthefollowingisanunlikelyreasonfortheARPprocesstofail？（）
