Which method is supported for backing up the virtual machine that contains vCenter Server?
A.
differential
B.
incremental
C.
full image
D.
individual disks
Explanation:
https://pubs.vmware.com/vsphere-60/index.jsp?topic=%2Fcom.vmware.vsphere.install.doc%
2FGUID-539B47B4-114B-49BC-9736-F14058127ECA.html
Correct Answer is C.
Source: https://docs.vmware.com/en/VMware-vSphere/6.0/com.vmware.vsphere.install.doc/GUID-539B47B4-114B-49BC-9736-F14058127ECA.html
Article describes how all other methods are NOT supported.