What are two requirements when creating and joining a cluster? $($Choose two.$)$

$$ Disable two$-$factor authentication on your Cisco ESA, before you create or join a cluster.

$$ Machines in a cluster can mix IP addresses and resolvable hostnames in DNS$.$

$$ You can choose to join the cluster over SSH or over CCS$.$

$$ A machine can create or join a cluster via the GUI and CLI.