单项选择题
A.IPSec VPN
B.QoS mechanism
C.Firewall
D.NAT
E.EIGRP routing protocol
F.Static routing
多项选择题 You work as a network technician at Certkiller .com. Please study the exhibit carefully. All of the computing devices shown are on the same logical network， as if they were all connected to the same switch. Which two features make this possible？（）
单项选择题 Youaredesigningasolutionthatneedstosupport30IPphoneusers.WhichswitchmodelandhowmanyswitchesdoestheCiscoSingle-SiteSecureNetworkFoundation1.1DesingandImplementationGuidesuggestforthesolution？（）
单项选择题 TherecommendedWANAccessmethodforasimplifiedandcosteffectiveCiscoSingle-siteSecureNetworkFoundationDeploymentprovideswhichtypeofService？（）