多项选择题
A.ATM
B.IDS
C.IOS
D.IOX
E.IPS
F.SDM
多项选择题 Whataretworecommendedwaysofprotectingnetworkdeviceconfigurationfilesfromoutsidenetworksecuritythreats?(Choosetwo.)（）
单项选择题 Forsecurityreasons,thenetworkadministratorneedstopreventpingsintothecorporatenetworksfromhostsoutsidetheinternetwork.Whichprotocolshouldbeblockedwithaccesscontrollists？（）
多项选择题 WhichofthefollowingareassociatedwiththeapplicationlayeroftheOSImodel？（two.）（）