A.Ithelpsverifyend-to-endpathavailability.
B.Itprovidestrafficreroutingincaseofdisaster.
C.HSRP,GLBP,andVRRPcanbeclientsofGSS.
D.BGPmustbetheroutingprotocolbetweenthedistributeddatacenters.
E.DNSresponsivenessisimprovedbyprovidingcentralizeddomainmanagement.