单项选择题
A.IPsec site-to-site VPN
B.Cisco AutoSecure
C.Cisco IOS Firewall
D.IPS
单项选择题 InternetProtocolversion6(IPv6)isthenext-generationInternetLayerprotocolforpacket-switchedinternetworksandtheInternet.IPv6routersolicitationis()
单项选择题 InwhichwaycantheIPv6addressof2031:0000:130F:0000:0000:09C0:876A:130Bbeexpressedmostefficiently?()
单项选择题 Twodirectlyconnectedrouters,R1andR2,arebothconfiguredforOSPFgracefulrestart.R2isabletoswitchpacketsinhardware,butR1isnot.IfanetworkadministratorlogsontoR2andperformsasystemreload,whichwillbetheresult?()