You are an administrator of an active/passive cluster of MAG Series devices running in mixed- mode configuration (IF-MAP server and authenticating users). The active user count is quickly approaching the maximum limit of the cluster. You have been directed to reconfigure the cluster to an active/active cluster and add a new license to increase the total number of active users the cluster can support.<br /> What must you do before changing the cluster configuration?()
A、Apply the new license to the passive node of the cluster.
B、Configure an external load balancer to hold the V IP.
C、Disable the active node in the cluster.
D、Remove the IF-MAP server configuration.