An administrator is upgrading an ESXi 3.5 host to ESXi 5.x with an intermediate upgrade to
4.0 using Update Manager. The host has a single Intel Xeon processor, 4GB of RAM, and a
VMFS datastore on a private, SAN-attached LUN. What might cause the upgrade to be
unsuccessful?
A.
Update Manager cannot upgrade a previously upgraded host.
B.
The ESXi host has 4GB RAM.
C.
The ESXi host has one processor.
D.
ESXi 3.5 is not supported for upgrade.
Explanation:
ESX 3/3.5 (i) can be patched till VUM 5.0, though no longer in VUM 5.1
ESX 3/3.5 can’t be upgraded using VUM 5 nor 5.1
D is correct :
Hostupgrades are only supported from ESX4.0 hosts onward.
This is due to the /boot partition being too small on ESX3.5 hosts (or ESX4 upgraded from ESX3 hosts).