In Deploying a Backup Network, in Order to Guarantee the Best

In deploying a backup network, in order to guarantee the best performance that can be brought to the iSCSI network, which the following statements are correct (multiple choice)

A) try to deploy the backup network in the LAN
B) On the switch, divide the backup network into separate VLANs
C) try to avoid the backup network via the routing transmission
D) GE bandwidth has often been the performance bottleneck backup performance, consider the use of network card binding to increase the backup network bandwidth
E) None of the above