单项选择题
A.Bottom up
B.Component swapping
C.Top down
D.Shoot from the hip
E.Divide and conquer
F.Follow the traffic path
多项选择题 WhichofthefollowingarenottrueOSPFLSArules？（）
多项选择题 Whichofthefollowingisnotavalidreasonforapackettobepunted？（）
单项选择题 AnewrouterisaddedtoanexistingHSRPstandbygroup.Oneoftheexistingroutersisinanactivestate，theotherisinastandbystate.Underwhatcircumstancewillthenewrouterbecometheactiverouter？（）