Which statement is true regarding multicast traffic when implementing NSX ?
A.
A multicast address range is required when using vCenter Server 5.5
B.
A multicast address range is required when using ESXi 5.1 hosts
C.
A multicast address range is required when using ESXi 5.0 hosts
D.
A multicast address range is required when using vCenter Server 5.1
B is correct :
You must specify a multicast address range for VMware ESX 5.1 hosts or when using the hybrid mode.
https://pubs.vmware.com/NSX-6/index.jsp?topic=%2Fcom.vmware.nsx.install.doc%2FGUID-7B33DE72-78A7-448C-A61C-9B41D1EB12AD.html