Studytheexhibitcarefully.TheCiscoIOSIPsecHighAvailability（IPsecHA）Enhancementsfeatureprovidesaninfrastructureforreliableandsecurenetworkstoprovidetransparent availabilityoftheVPNgateways-thatis，CiscoIOSSoftware-basedrouters.Whatarethetwooptionsthatareused
题目
Studytheexhibitcarefully.TheCiscoIOSIPsecHighAvailability（IPsecHA）Enhancementsfeatureprovidesaninfrastructureforreliableandsecurenetworkstoprovidetransparent availabilityoftheVPNgateways-thatis，CiscoIOSSoftware-basedrouters.WhatarethetwooptionsthatareusedtoprovideHighAvailabilityIPsec？（）
A.HSRP
B.DualRouterMode（DRM）IPsec
C.IPsecBackupPeerings
D.RRI