Which two steps can an administrator take to upgrade an existing VMFS2 datastore to VMFS5?
(Choose two.)
A.
Attach the VMFS2 datastore to an ESX 3.x host and upgrade it to VMFS3
B.
Attach the VMFS2 datastore to the vSphere 5 host and upgrade it to VMFS3
C.
Upgrade the datastore from VMFS3 to VMFS5 on a vSphere 5 host
D.
Upgrade the ESX host attached to the storage to vSphere 5
Explanation:
A and C are correct
To upgrade a VMFS2 datastore, you use a two-step process that involves upgrading VMFS2 to VMFS3 first. Because ESXi 5.0 hosts cannot access VMFS2 datastores, use a legacy host, ESX/ESXi 4.x or earlier, to access the VMFS2 datastore and perform the VMFS2 to VMFS3 upgrade.
After you upgrade your VMFS2 datastore to VMFS3, the datastore becomes available on the ESXi 5.0 host, where you complete the process of upgrading to VMFS5.
http://pubs.vmware.com/vsphere-50/index.jsp?topic=%2Fcom.vmware.vsphere.storage.doc_50%2FGUID-7D88E01D-360F-4215-8D0B-F2B8424E5F42.html
But doesn’t this mean that the host is 3x and will not connect to a VMFS5 DS?
it cant be D as you have not converted the data store to 5. So it has to be C. if it asked for 3 option yes you could go A,D,C so AC is the answer.
http://pubs.vmware.com/vsphere-51/index.jsp?topic=%2Fcom.vmware.vsphere.storage.doc%2FGUID-D18A4449-6C05-49C1-BE5D-3AAE29F0A681.html