Which are the two network requirements for a VMware vSAN 6.5 cluster? (Choose two.)

Which are the two network requirements for a VMware vSAN 6.5 cluster? (Choose two.)
A . Multicast must be enabled on the physical switches and routers that handle vSAN traffic.
B . vSAN requires IPv6 only.
C . All hosts must have a dedicated 40GbE NI
E . The vSAN network supported IPv4 or IPv6.
F . vSAN requires IPv4 only.

Answer: A,D

Explanation:

https://docs.vmware.com/en/VMware-vSphere/6.5/com.vmware.vsphere.virtualsan.doc/GUID-AFF133BC-F4B6-4753-815F-20D3D752D898.html

http://cormachogan.com/2014/01/21/vsan-part-15-multicast-requirement-for-networking-misconfiguration-detected/