What are two requirements when configuring a Fibre Channel SAN with an ESXi 5.x cluster?
(Choose two.)

A.
RDMs must be zoned and masked to each ESXi 5 host in the cluster

B.
A FCP HBA or hardware supporting FCoE must be installed in the hosts

C.
Each LUN should contain only one NFS datastore.

D.
Each LUN must present a unique LUN ID to each ESXi hosts.

Explanation:
A: correct because yes, you have to Zone and mask to allow only the Hosts in that you want in.
Zoning has the following effects:
– Reduces the number of targets and LUNs presented to a host.
– Controls and isolates paths in a fabric.
– Can prevent non-ESXi systems from accessing a particular storage system, and from possibly
destroying
VMFS data.
– Can be used to separate different environments, for example, a test from a production
environment.
B: correct because yes you need HBAs to connect to the FC.
C is obviously wrong as the FS is VMFS not NFS
D is wrong because: Page 37 of the vSphere storage guide says.
– For multipathing to work properly, each LUN must present the “same” LUN ID number to all
ESXi hosts.
http://pubs.vmware.com/vsphere-50/topic/com.vmware.ICbase/PDF/vsphere-esxi-vcenter-server

50-storage-guide.pdf