An administrator is preparing to upgrade the environment’s dual Virtual I/O servers (VIOS) from
V1.2 to V2.1
What must considered in preparation for this upgrade?

A.
All client LPARs must be shutdown as both VIO servers have to be upgraded to V2.1 at the
same time.

B.
The VIOS must be upgraded to the latest fixpack of V1.5 before upgrading to V2.1.

C.
The only upgrade method that will be supported is using NIM because the current VIOS is
lower than V1.3.

D.
VIOS V2.1 requires AIX clients to be running AIX V6.1 at a minimum.

Explanation: