When a floating static route is configured, which action ensures that the backup route is used when the primary route fails?
A.The floating static route must have a higher administrative distance than the primary route so it is used as a backup. B.The administrative distance must be higher on the primary route so that the backup route becomes secondary C.The floating static route must have a lower administrative distance than the primary route so it is used as a backup. D.The default-information originate command must be configured for the route to be installed into the routing table.正确答案A