Which two are true of an NFS repository when used with Oracle VM?
A.
NFS repositories are excellent for storing guests’ root file systems.
B.
NFS is a more expensive option than iSCSI or SAN fabrics.
C.
OCFS2 must be used as the filesystem format for volumes exposed through NFS.
D.
NFS shares mounted directly in a guest require the DM-NFS driver to be installed on the guest.
E.
NFS is supported for use in RAC only when mounted from the guest (not domO).
Explanation:
First of all here you have to select two options but answer shows one. A is ok.
A performance comparison of NFS and iSCSI for IP-Networked Storage showed that iSCSI is
faster than NFS because iSCSI caches and updates meta-data asynchronously and transfers
blocks rather than files. So the options B is right.